Laurence Christian Benig

WFXY

Structure Origin Fate Function

Prosencephalon Region of flexing of the anterior of the neurocoel

Telencephalon and Diencephalon

CNS

Mesencephalon Anterior part of neurocoel that is flexed forming a bulbous-like mesencephalon

Part of brain

Rhombencephalon

Prosocoel Evaginations of brain vesicle

Epiphysis Pineal gland

Infundibulum Bulbous evagination of diencephalon floor

Pituitary gland Hormone Secretion

Hypophysis Ectodermal pigmented cells between neurocoel and gut

Mesocoel

Rhombocoel

Anterior Choroid Plexus Downfolding roof of prosencephalon

Basal Plate

Spinal Cord

Central Canal

Optic Cup Invagination of optic vesicle

Pigmented Epithelium

Retina Thickest lateral walls of the invaginated optic vesicle

Retina Eye

Optic Lens Epidermal ectoderm Lens

Otic Vesicles Invagination of superficial ectoderm

Olfactory Epithelium

Olfactory Canal

External Nares Invaginations on head ectoderm on sides of prosocoel

External nares Ear

Internal Nares

Optic nerves (II)

Trigeminal Ganglion (V)

Acoustico-facialis Ganglion (VII-VIII)

Glossopharyngeal Ganglion (IX)

Epidermis Ectoderm Skin Covering, Respiration

Melanophores

Oral Suckers Pigmented Ectodermal invaginations

Oral Cavity Mouth

Stomodeum Depression

Pharynx

Pharyngeal Pouch

External Gills

Lung Buds Lungs Respiratory system

Trachea

Thyroid Gland Single evagination of the floor of the pharynx anterior to the heart

Thyroid gland Hormone secretion

Esophagus Foregut Esophagus Digestive system

Stomach Foregut Stomach Digestive system

Liver Median posterior-ventral diverticulum of the foregut

Liver Bile secretion

Gall Bladder Gall bladder Digestive system

Midgut

Yolk

Hindgut

Cloaca Cloaca Excretory system

Anus Ectodermal invagination ventral to site of blastopore

Anus

Notochord

Dermatome Connective tissues & Blood vessels of skin

Myotome Skeletal muscles Support

Sclerotome Vertebral column

Branchiometric Muscles

Parachordal Cartillage Skull Protects the brain

Prechordal/Trabecular Cartilage

Visceral Arches

Hypobrancial Cartilage

Pronephros Kidney

Pronephros Duct Mesomeric mesoderm

Heart Mesodermal cells above the yolk

Heart Circulatory system

Pericardial Cavity Migration of heart mesoderm to mid ventral position

Parietal Pericardium Somatic mesoderm

Visceral Pericardium

Peritoneal Cavity

Parietal Peritoneum

Visceral Peritoneum splanchnic mesoderm

Efferent Branchial Vessels

Afferent Branchial Vessels

Dorsal Aorta

Truncus Arteriosus

Bulbus/Conus Arteriosus

Atrium

Ventricle

Common Cardinal Vein

Sinus Venosus

Anterior Cardinal Vein

Posterior Cardinal Vein

Caudal Artery

Caudal Vein

Gill Capillaries