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STOMODEUM

Stomodeum

Depression between the brain and the pericardium in an embryo

The stomodeum, also called stomatodeum or stomatodaeum, is a depression between the brain and the pericardium in an embryo, and is the precursor to the

Stomodeum

Parotid gland

Major salivary gland in many animals

mouth (from ectodermal lining near angles of the stomodeum in the 1st/2nd pharyngeal arches; the stomodeum itself is created from the rupturing of the oropharyngeal

Parotid gland

Parotid_gland

Bipinnaria

food particles, and deliver them to the mouth (more correctly called a stomodeum). Eventually, three additional arms develop at the front end of the larva;

Bipinnaria

Pharyngeal arch

Embryonic precursor structures in vertebrates

midline. The first arch, as the first to form, separates the mouth pit or stomodeum from the pericardium. By differential growth the neck elongates and new

Pharyngeal arch

Pharyngeal_arch

Hormiphora hormiphora

Species of ctenophore

the way towards the mouth. Tentacle sheaths are closely pressed to the stomodeum. The elongated tentacles possess two varieties of slightly yellowish tentilla

Hormiphora hormiphora

Hormiphora_hormiphora

Rathke's pouch

Feature in embryogenesis

development. It begins as an ectodermal invagination at the roof of the stomodeum, which extends dorsally towards the developing brain. The pouch eventually

Rathke's pouch

Rathke's_pouch

Enamel organ

Aggregate of cells involved in tooth development

which is differentiated from the primitive oral epithelium lining the stomodeum. The enamel organ is responsible for the formation of enamel, initiation

Enamel organ

Enamel_organ

Third ventricle

Structure within the human brain

creating the infundibulum and posterior pituitary; an outgrowth from the stomodeum (the future mouth) gradually extends towards it, to form the anterior

Third ventricle

Third_ventricle

Foregut

Anterior part of the gastrointestinal tract

after the initial cephalocaudal folding of the embryo. Starting at the stomodeum, a rapid expansion of the primitive gut forms the esophagus, from which

Foregut

Opiliones anatomy

of males is withdrawn into the first opisthosomal somite. The foregut (stomodeum) develops from the ectoderm. It is called pharynx before passing through

Opiliones anatomy

Opiliones_anatomy

Face and neck development of the human embryo

Development in 3rd to 8th week of gestation

The maxillary prominence is initially located superior/lateral to the stomodeum while the mandibular prominence is located inferior to it and will fuse

Face and neck development of the human embryo

Face_and_neck_development_of_the_human_embryo

Kyopoda

Genus of jellyfishes

as the outer tentacles, but shorter and thicker. The calyx contain the stomodeum (the embryonic anterior ectodermal part of the digestive tract.) and four

Kyopoda

Insect head

suspensory sclerites extending upwards to end in the lateral wall of the stomodeum. Muscles arising on the frons are inserted into these sclerites, which

Insect head

Insect_head

Vestibular lamina

Structure between human cheek and gums

This cleft is the oral vestibule. The proliferation of the lining of the stomodeum (ectoderm) gives rise to the oral epithelium. During the initiation stage

Vestibular lamina

Vestibular_lamina

NKX2-3

Protein-coding gene in the species Homo sapiens

Top expressed in Hindgut migratory enteric neural crest cell yolk sac Stomodeum buccopharyngeal membrane duodenum pharyngeal pouch ileum tongue embryo

NKX2-3

Callianira antarctica

Species of ctenophore

Callianira antarctica has no oil sacs, and instead stores lipids in the stomodeum. Body carbon is distributed among tentacles, the gut wall, and comb rows

Callianira antarctica

Callianira_antarctica

HESX1

Protein-coding gene in the species Homo sapiens

pouch embryo embryo endoderm morula epiblast definitive endoderm yolk sac Stomodeum More reference expression data BioGPS n/a Gene ontology Molecular function

HESX1