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Topics referred to by the same term
Root sheath may refer to any of these biological structures: Epithelial root sheath, a proliferation of epithelial cells located at the cervical loop
Root_sheath
Cells which initiate dentin formation in a developing tooth
The Hertwig epithelial root sheath (HERS) or epithelial root sheath is a proliferation of epithelial cells located at the cervical loop of the enamel organ
Epithelial_root_sheath
closely adherent to the root of the hair, and consists of two layers: the outer and inner root sheaths. The outer root sheath corresponds with the stratum
Root_sheath_(hair)
Region of the hair follicle
The outer root sheath or external root sheath of the hair follicle encloses the inner root sheath and hair shaft. It is continuous with the basal layer
Outer_root_sheath
Region of hair follicle
The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft. It is made of three layers:
Inner_root_sheath
Topics referred to by the same term
external oblique muscles Root sheath (disambiguation) Tendon sheath, a layer of synovial membrane around a tendon Scabbard, a sheath for holding a sword,
Sheath
Organ found in mammalian skin
the papilla is the hair matrix. A root sheath composed of an external and internal root sheath. The external root sheath appears empty with cuboid cells
Hair_follicle
Protein filament that grows from follicles found in the dermis, or skin
consists of fibrous connective tissue, glassy membrane, external root sheath, internal root sheath composed of epithelium stratum (Henle's layer) and granular
Hair
Medical condition
insufficient amount of the inner root sheath in the anagen staged hairs. This creates a gap in the linking between the inner root sheath and the hair cuticles.
Loose_anagen_syndrome
The coleorhiza or root sheath is a protective layer of tissue that surrounds the radicle (the embryonic primary root) in monocotyledon seeds. During germination
Coleorhiza
Region on a tooth's surface where cementum and enamel join
Hertwig's epithelial root sheath, composed of two epithelial layers derived from the external and internal epithelia. The sheath is irregularly fragmented
Cementoenamel_junction
Transport system component in vascular plants
considerably: see stele. The bundle-sheath cells are the photosynthetic cells arranged into a tightly packed sheath around the vein of a leaf. It forms
Vascular_bundle
Medical condition
Hair casts, also known as pseudonits, represent remnants of the inner root sheath, and often occur in great numbers and may mimic nits in the scalp. Hair
Hair_casts
Common cyst that forms from a hair follicle
the outer root sheath of the hair follicle. Their origin is currently unknown, but they may be produced by budding from the external root sheath as a genetically
Trichilemmal_cyst
Tubular sheath of dura mater that surrounds the spinal cord and cauda equina
along their paths out of the vertebral canal which become the dural root sheaths. The lumbar cistern is part of the subarachnoid space. It is the space
Thecal_sac
Trichocyte Huxley's layer hair root sheath cell Trichocyte Henle's layer hair root sheath cell Trichocyte Outer root sheath hair cell Trichocyte Surface
List_of_human_cell_types
Process by which teeth form
cells into the deeper tissues forms Hertwig Epithelial Root Sheath, which determines the root shape of the tooth. During tooth development there are strong
Human_tooth_development
Molar condition in which the root is relatively short
failure or late invagination of Hertwig's epithelial root sheath, which leads an apical shift of the root furcation. The term was coined by Sir Arthur Keith
Taurodontism
Protein encoded by the TCHH gene in mammals
1903 the name trichohyalin was assigned to the granules of the inner root sheath (IRS) of hair follicles discovered by Hans Vörner. In 1986 the name was
Trichohyalin
Topics referred to by the same term
southern France Hers-Mort, a river in southern France Hertwig's epithelial root sheath Energy rating systems: Home Energy Rating, in the United States House
Hers
Field of anatomy dedicated to human teeth
cells into the deeper tissues forms Hertwig's Epithelial Root Sheath, which determines the root shape of the tooth. The dental papilla contains cells that
Dental_anatomy
Medical condition
[citation needed] These cysts form as dilations of the nerve root sheath near the dorsal root ganglion, specifically within the perineural space between
Tarlov_cyst
Internal portion of the human penis
which extends to the upper surface of the root, where it blends with the fascial sheath of the organ. Root of the penis Lateral cross-section of the male
Root_of_penis
Nodules of tooth enamel present elsewhere in the body
after dentin formation is initiated on the root surface, the root sheath disintegrates and moves away from the root allowing the cells of the dental sac to
Enamel_pearl
by an increase in length. Other theories involve Hertwig epithelial root sheath (HERS) being involved. Martha Somerman and her laboratory played a key
Cementoblast
Melanin-producing cells of the skin
In adults, stem cells are contained in the bulge area of the outer root sheath of hair follicles. When a hair is lost and the hair follicle regenerates
Melanocyte
Part of the periodontal ligament cells around a tooth
They are discrete clusters of residual cells from Hertwig's epithelial root sheath (HERS) that did not completely disappear. It is considered that these
Epithelial cell rests of Malassez
Epithelial_cell_rests_of_Malassez
Compulsive hair-pulling disorder
satisfaction after pulling an anagen phase hair with the gel-like inner root sheath still surrounding the base of the hair. Trichotillomania can go into
Trichotillomania
Calcified whitish structure in humans' mouths used to break down food
cells into the deeper tissues forms Hertwig's Epithelial Root Sheath, which determines a tooth's root shape. The dental papilla contains cells that develop
Human_tooth
Medical condition
cutaneous neoplasm that shows differentiation toward cells of the outer root sheath. The lesion is often seen in the face and neck region. Multifocal occurrence
Trichilemmoma
Hair on the leg areas of adolescent and adult humans
have experimented on. The hair follicles are localized to the outer root sheath during one of the phases of the hair growth cycle. Such experiments conclude
Leg_hair
Huxley's layer is the middle layer of the inner root sheath of the hair follicle, situated between Henle's layer (outermost) and the IRS cuticle (innermost)
Huxley's_layer
Outermost part of a hair
pigment that gives hair its color and is found in the cortex. Inner root sheath Lanceolate ending List of distinct cell types in the adult human body
Cuticle_(hair)
Medical condition
of a latent infection. The hyperproliferation of keratinocyte inner root sheath cells in which large aggregates of viral particles can be found suggests
Trichodysplasia_spinulosa
Medical condition
Uneven growth of the outer root sheath cells is the source of hair twisting in hereditary forms. The hair shaft and inner root sheath are unevenly molded as
Pili_torti
Cells that make hair and nails
composed. These cells give rise to non-hair non-keratinized IRSC (inner root sheath cell) as well. List of human cell types derived from the germ layers
Trichocyte_(human)
Chemical compound
(NOS; EC 1.14.13.39). It is also prevalent in trichohyalin at the inner root sheath and medulla of hair follicles, where it is synthesized from arginine
Citrulline
From cervical plexus
embedded within the anterior wall of the carotid sheath anterior to the internal jugular vein. The superior root of the ansa cervicalis (formerly known as descendens
Ansa_cervicalis
Aggregate of cells involved in tooth development
enamel organ then gives rise to the Hertwig Epithelial Root Sheath (HERS)- this outlines the future root and also is responsible for the size, shape, length
Enamel_organ
Apocrine sweat gland Eccrine sweat gland Sebaceous Hair Root sheath Outer root sheath Inner root sheath Henle's layer Huxley's layer Hair shaft Cuticle Cortex
Skin_secretions
it is enameloid-like tissue and originated from Hertwig's epithelial root sheath as it contains enamel matrix proteins. Bencze used the term intermediate
Hyaline layer of Hopewell-Smith
Hyaline_layer_of_Hopewell-Smith
Medical condition
structurally weakens the companion layer separating the inner and outer root sheath and increases the chances that a beard hair will in-grow. The most efficient
Pseudofolliculitis_barbae
Bioengineering technique to regenerate teeth
and root formation, during which dentin forms first, followed by enamel, while the root develops with the guidance of Hertwig's epithelial root sheath. Finally
Tooth_regeneration
Genetic disease of dogs resulting in hair loss
are spikes of fused keratin that seem to protrude through the outer root sheath to the vitreous layer that creates a type of 'fiery' effect — appear
Alopecia_X
Part of neck anatomy
superior root of ansa cervicalis is situated either anterior to or within the carotid sheath), deep cervical lymph nodes The carotid sheath occurs at
Carotid_sheath
Hygiene and cosmetology involving human hair
from beneath the skin. The living parts of hair (hair follicle, hair root, root sheath and sebaceous gland) are beneath the skin, while the actual hair shaft
Hair_care
Species of plant
Leaf fibers were occasionally used to bind and manufacture sandals. Root sheaths were woven into baskets to add reddish-brown designs. Fruits were baked
Yucca_brevifolia
Hair follicle layer
Henle's layer is the third and the outermost layer of the inner root sheath of the hair follicle, consisting of a single layer of cubical cells with clear
Henle's_layer
Hair straightening tool
segment of the hair follicle leading to degeneration of the external root sheath. In 1992, a hot comb alopecia study was conducted, and it was discovered
Hot_comb
Protein-coding gene in humans
responsible for hair formation, and it encodes a protein present in the inner root sheath of hair follicles. "KRT72 Gene - GeneCards | K2C72 Protein | K2C72 Antibody"
KRT72
Process by which teeth form and grow into the mouth
Diekwisch, T.G.H. (2005). "Evolution and development of Hertwig's epithelial root sheath". Developmental Dynamics. 235 (5): 1167–1180. doi:10.1002/dvdy.20674
Animal_tooth_development
Group of specialized connective tissue fibers
mature PDL after the disintegration of Hertwig epithelial root sheath during the formation of the root. They form a plexus that surrounds the tooth. Cell rests
Periodontal_fiber
Medical condition
in Gardner's Syndrome with Partial Differentiation toward the Inner Root Sheath". The Journal of Dermatology. 16 (6): 492–495. doi:10.1111/j.1346-8138
Pilomatricoma
Type of arthritis of the spine
develop. Less common occurrences include ectasia of the sacral nerve root sheaths. About 30% of people with AS will also experience anterior uveitis, causing
Ankylosing_spondylitis
Medical condition
cause. However, one theory involves pressure exerted on the internal root sheath leading to damage, which leads to the recruitment of inflammatory cells
Central centrifugal cicatricial alopecia
Central_centrifugal_cicatricial_alopecia
Protein-coding gene in the species Homo sapiens
spermatocyte CA3 field spermatid inner root sheath tail of embryo brown adipose tissue thyroid gland outer root sheath of hair follicle More reference expression
HOXA4
Formation of cementum during tooth development
root sheath (HERS) must fragment. HERS is a collar of epithelial cells derived from the apical prolongation of the enamel organ. Once the root sheath
Cementogenesis
Element of fish anatomy
Diekwisch, T.G.H. (2005). "Evolution and development of Hertwig's epithelial root sheath". Developmental Dynamics. 235 (5): 1167–1180. doi:10.1002/dvdy.20674
Fish_jaw
Dog breed
affected. Biopsies on the affected animals showed that damage to the root sheath and clumping of pigment in hair shafts were the main reasons for the
Pont-Audemer_Spaniel
French anatomist and histologist (1842–1909)
the field of dentistry, he described residual cells of the epithelial root sheath in the periodontal ligament. These remaining cells are referred to as
Louis-Charles_Malassez
Basal organ of a vascular plant
vigorous root systems are essential for crop stability and prevention of lodging. Absorption of water and mineral nutrients. Root epidermal cells and root hairs
Root
Part of enamel on developing tooth
During root formation the inner layers of epithelium disappear and only the basal layers are left creating Hertwig's epithelial root sheath (HERS). At
Cervical_loop
Protein-coding gene in humans
along with other genes, and it encodes a protein present in the inner root sheath of hair follicles. "KRT73 Gene(Protein Coding) - Keratin 73, Type II"
KRT73
Protein-coding gene in humans
keratins. This gene encodes a protein that is expressed in the inner root sheath of hair follicles. The type II keratins are clustered in a region of
KRT71
Pathologic loss of anagen or growth-phase hairs
necrotic matrix forms plugs consisting of melanin, keratin and inner root sheath which are extruded through the follicular opening. This process is known
Anagen_effluvium
Drug delivery into hair follicles
consists of the inner root sheath and outer root sheath. The inner root sheath protects the growing hair, while the outer root sheath is continuous with
Follicular_drug_delivery
German physician (1809–1885)
ampulla of the uterine tube. Henle's layer: outer layer of cells of root sheath of a hair follicle. Henle's ligament: tendon of the transversus abdominis
Friedrich_Gustav_Jakob_Henle
Medical imaging technique
myelography in oblique projection. You can see the individual nerve root sheaths. Computed tomography after conventional myelography. The overlap-free
Myelography
Mammalian protein found in Homo sapiens
amino acid isoform splice variant (FGF5s). FGF5 is produced in the outer root sheath of the hair follicle as well as perifollicular macrophages, with maximum
FGF5
that enamel matrix proteins (or EMPs) laid down by Hertwig's epithelial root sheath serve as precursors to acellular cementum during its formation, known
Enamel_matrix_derivative
Species of fungus
Histological examination of a diseased hair shows clefts that between the inner root sheath and hair. Microsporum audouinii fluoresces when examined in ultraviolet
Microsporum_audouinii
Protein-coding gene in the species Homo sapiens
vitro. Neutralizing antibody against DKK-1 reversed DHT effects on outer root sheath keratinocytes. DKK-1 expression is attenuated by L-threonate in vitro
DKK1
Formation of dentin during tooth development
in the root of a tooth forms only after the presence of Hertwig epithelial root sheath (HERS), near the cervical loop of the enamel organ. Root dentin
Dentinogenesis
Protein-coding gene in humans
medullary collecting duct ascending aorta granulocyte female urethra inner root sheath primitive streak renal corpuscle More reference expression data BioGPS
HOXB4
Cogswell • Henry Schein • Henry Trendley Dean • Hertwig's epithelial root sheath • Heterodont • Hexetidine • History of dental treatments • Horace
Index of oral health and dental articles
Index_of_oral_health_and_dental_articles
Protein-coding gene in the species Homo sapiens
anterior pituitary Top expressed in tooth molar prostatic epithelium inner root sheath gastrula epithelium of male urethra enamel knot lip urethral gland (male)
WNT10A
Dental specialty
epithelial root sheath (HERS) could be potentially damaged when the young developing dentition is traumatised. HERS is proven to be essential for root formation
Regenerative_endodontics
Protein-coding gene in humans
nipple oral cavity mucosa of pharynx vagina Top expressed in hair outer root sheath of hair follicle cortex of hair lip filiform papilla thymus skin of back
FOXN1
Protein-coding gene in the species Homo sapiens
cortex Top expressed in prostatic epithelium surface ectoderm inner root sheath enamel knot hair skin of finger lip inner cell mass morula pretectal
WNT10B
Human protein and coding gene
expressed ectopically, within transgenic mice the hair follicle outer root sheath (ORS) the proliferation of the cell matrix is inhibited. BMP4 also activates
Bone_morphogenetic_protein_4
Protein-coding gene in the species Homo sapiens
such as filaggrin in the hair follicle and trichohyalin in the inner root sheath, during hair follicle formation. Together with the type I enzyme, this
PADI3
Common parasitic skin disease in dogs
the examination, because the hair follicle mites then migrate from the root sheaths of the hair and are therefore more visible. Individual hair follicle
Canine_demodicosis
Species of fungus in the family Boletaceae found in North America
surface of the root sheath, effectively increasing the surface area for nutrient absorption. The hyphae also invade between the root cortical cells to
Exsudoporus_frostii
Medical condition
lesions of lichen planopilaris exhibit vacuolar alterations in the outer root sheath as well as perifollicular lymphocytic infiltrates at the level of the
Graham-Little_syndrome
Part of the vulva that covers and protects the glans of the clitoris
similar structure typically referred to as the clitoral sheath, which is homologous to the penile sheath in male mammals. Frenulum clitoridis: a frenulum below
Clitoral_hood
Protein-coding gene in the species Homo sapiens
in lip hair bulb muscle of thigh Epithelium of large intestine inner root sheath esophagus triceps brachii muscle epithelium of rectum skin of back inner
HR_(gene)
Protein-coding gene in humans
anterior cingulate cortex Top expressed in lip hair filiform papilla outer root sheath of hair follicle ankle joint embryo cortex of hair skin of back skin
KRT31
Type of dental mass
form around epithelial cells such as remnants of Hertwig's epithelial root sheath. It is presumed that epithelial remnants are able to induce adjacent
Pulp_stone
Medical condition
kinking is a hair cycle disease associated with dysregulation in the inner root sheath of the hair bulb and the shortening of anagen hairs. The diagnostic criteria
Kinking_hair
Genus of fungi
black scurf of potatoes, bare patch of cereals, root rot of sugar beet, belly rot of cucumber, sheath blight of rice, and many other pathogenic conditions
Rhizoctonia
Species of fungus
potatoes, bare patch of cereals, root rot of sugar beet, belly rot of cucumber, banded leaf and sheath blight in maize, sheath blight of rice, and many other
Rhizoctonia_solani
Glial cell type
cells wrap around axons of motor and sensory neurons to form the myelin sheath. The Schwann cell promoter is present in the downstream region of the human
Schwann_cell
Islamic holiday
to seek water sources...; scabbard, sheath; small boat; sacrifice". Arthur Jeffery recognizes the same Semitic root, but believes the sense of the term
Eid_al-Adha
Member virus of Human polyomavirus 8
neoplasia. TSPyV appears to actively replicate in the hair follicle inner root sheath cells; hyperproliferation of these cells is thought to underlie the clinically
Trichodysplasia spinulosa polyomavirus
Trichodysplasia_spinulosa_polyomavirus
Blood vessel that drains the head
artery in the same sheath (the carotid sheath), and the accessory runs obliquely backward, superficial or deep to the vein. At the root of the neck, the
Internal_jugular_vein
Traditional Finnish outdoor universal knife
The basic components of a puukko are a handle and a blade along with a sheath, which can usually be attached to a belt, but sometimes to a shirt or coat
Puukko
Roman dagger
second type was a wooden sheath, probably covered with leather. One metal plate was attached to the front of the wooden sheath. This plate was fairly flat
Pugio
Chemical compound
Channels Inhibits Hair Growth by Inducing Cell Death of Hair Follicle Outer Root Sheath". The Journal of Pharmacology and Experimental Therapeutics. 370 (2):
Forsythoside_B
One of the two arteries that supply the head and neck with blood
two arteries. The common carotid artery is contained in a sheath known as the carotid sheath, which is derived from the deep cervical fascia and encloses
Common_carotid_artery
Medical condition
apically down. This is due to the failure of the Hertwig epithelial root sheath which maps the shape of the forming tooth roots during active differentiation
Tricho–dento–osseous_syndrome
ROOT SHEATH
ROOT SHEATH
Boy/Male
American, British, English
Raven
Boy/Male
Indian
Spirit, Soul, Good behaviour, Purity
Surname or Lastname
Dutch (also de Roos) and Swiss German
Dutch (also de Roos) and Swiss German : habitational name for someone living at a house distinguished by the sign of a rose.Dutch (also de Roos) : metonymic occupational name for someone who grew roses, from roos ‘rose’.Dutch : from the female personal name Rosa (Latin rosa ‘rose’).Dutch : nickname from roos ‘erysipelas’, an infection which causes reddening of the skin and scalp, applied presumably to someone with a ruddy complexion.Swiss German : from a personal name formed with hrÅd ‘renown’.Swedish and Danish (of German origin) : as 1.Swedish : variant of Ros.English and Scottish : variant of Ross 2.
Surname or Lastname
English
English : variant spelling of Foote.
Girl/Female
British, Dutch, English, French, German, Netherlands
Rose
Surname or Lastname
English
English : nickname for a cheerful person, from Middle English rote ‘glad’ (Old English rÅt).English : metonymic occupational name for a player on the rote, an early medieval stringed instrument (Middle English, Old French rote, of uncertain origin but apparently ultimately akin to Welsh crwth).Dutch : topographic name for someone who lived by a retting place (Dutch root, a derivative of ro(o)ten ‘to ret’, akin to modern English rot), a place where flax is soaked in tubs of water until the stems rot to release the linen fibers.
Boy/Male
Dutch
Large.
Male
Chinese
a root.
Surname or Lastname
English
English : nickname from the bird (Old English hrÅc), most likely given to a person with very dark hair or a dark complexion or to someone with a raucous voice.English : some early examples, such as Robert of ye Rook (London 1318) and Henry del Rook (Staffordshire 1332), point clearly to a local name of some kind. The first of these could be from a house sign, the second may be a variant of Rock 1.German : from a short form of a Germanic personal name formed with hrok, of uncertain origin; perhaps a cognate of 1 or from Middle High German rÅhen ‘to cry or yell (in battle)’ or Old High German ruoh ‘intent’.Perhaps an altered spelling of German Ruck.
Girl/Female
Hindu
Look, Blessed with beauty, Shape, Beauty
Surname or Lastname
Dutch
Dutch : from a short form of the Germanic personal name Robrecht.Altered spelling of German Rupp.English : variant spelling of Roope.
Surname or Lastname
English
English : variant of Rolfe.German : from Ruffo, a short form of a personal name formed with hrÅd ‘renown’, ‘victory’.Probably an Americanized spelling of German Ruf and Ruff.
Boy/Male
Muslim
Spirit, Soul, Good behaviour, Purity
Surname or Lastname
English
English : metonymic occupational name for a maker or seller of boots, from Middle English, Old French bote (of unknown origin).Dutch and North German : metonymic occupational name for a boatman, from Dutch boot ‘boat’.
Surname or Lastname
English
English : patronymic from Root 1.
Surname or Lastname
English (now chiefly East Anglia)
English (now chiefly East Anglia) : probably a topographic name for someone who lived by a patch of rough ground, from a hypothetical Old English word rÅ«(we)t or rÅ«het, derivatives of rÅ«h ‘rough’, ‘overgrown’. Compare Rauch. There are places called Ruffet(t) in Surrey and Sussex which are thought to have this origin.German : Swabian variant of Roth 1.Probably an Americanized spelling of German Rauth.Indian (northern states) : Hindu (Rajput, Jat, Maratha) and Sikh name meaning ‘prince’, from Sanskrit rÄjaputra (from rÄja ‘king’ + putra ‘son’). In India this is a variant of a name more commonly spelled Ravat or Raut. The Jats have a clan called Ravat.
Boy/Male
Hindu, Indian, Indonesian, Kenyan
Root
Girl/Female
Indian
Soul
Boy/Male
Egyptian
Root.
Boy/Male
Indian, Sanskrit
Beginning; Root
ROOT SHEATH
ROOT SHEATH
Boy/Male
Muslim/Islamic
Most highly adored
Boy/Male
Irish
Red haired.
Boy/Male
Hindu, Indian, Marathi
Vishnu; The Healer; Who Cures the Disease of Birth and Death Cycles
Male
Japanese
(真明) Japanese name MASAAKI means "true brightness."
Boy/Male
Teutonic
Shining spear.
Girl/Female
Hindu
Smiling
Boy/Male
Hindu
One with a light shone upon him, Illumination
Boy/Male
Indian
God Vishnu
Boy/Male
Hindu
Boy/Male
Hebrew
Broad.
ROOT SHEATH
ROOT SHEATH
ROOT SHEATH
ROOT SHEATH
ROOT SHEATH
v. t.
To cover with a roof.
n.
That which corresponds to the foot of a man or animal; as, the foot of a table; the foot of a stocking.
a.
Feeding on roots; root-eating.
n.
The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion, or the sweet flag.
v. t.
To cover or dress with soot; to smut with, or as with, soot; as, to soot land.
n.
That factor of a quantity which when multiplied into itself will produce that quantity; thus, 3 is a root of 9, because 3 multiplied into itself produces 9; 3 is the cube root of 27.
v. i.
To fix the root; to enter the earth, as roots; to take root and begin to grow.
v. t.
To tread; as, to foot the green.
v. t.
To tear up by the root; to eradicate; to extirpate; -- with up, out, or away.
v. t.
To turn up or to dig out with the snout; as, the swine roots the earth.
v. i.
To occupy a room or rooms; to lodge; as, they arranged to room together.
v. t.
To kick with the foot; to spurn.
a.
Full of roots; as, rooty ground.
n.
A room for retirement from another room, as from a dining room; a drawing-room.
n.
An edible or esculent root, especially of such plants as produce a single root, as the beet, carrot, etc.; as, the root crop.
v. t.
To spend or pass in riot.
a.
Having roots, or possessing a well-developed root.
v. i.
To search or root in the ground, as a swine.
n.
That which resembles a root in position or function, esp. as a source of nourishment or support; that from which anything proceeds as if by growth or development; as, the root of a tooth, a nail, a cancer, and the like.