Anatomy Week3 Flashcards
Larynx develops around
laryngotracheal groove.
Lining Epithelium of larynx develops from
endoderm of cranial end of laryngotracheal diverticulum
Cartilage of larynx Develop from
Cartilages of 4th and 6th arch (From Neural crest cells)
Epiglottis Develops from
Caudal part of Hypobranchial eminence (3rd and 4th arch)
Laryngeal Muscles- develop from
4th and 6th arch
Nerve supply of Laryngeal Muscles
Laryngeal branches of vagus nerve
Congenital Anomalies Of Larynx
high air way obstruction syndrome
Laryngeal atresia
Trachea develops from the
lagyngotracheal groove as respiratory diverticulum,
Epithelium and Glands of trachea
Endodermal lining of larygotracheal tube
Cartilage, Connective tissue, Muscles of trachea
Splanchnic mesoderm
Congenital Anomalies Of Trachea
Tracheoesophageal Fistula-
Laryngotracheoesophageal cleft
Tracheal Stenosis and Atresia
Tracheal Diverticulum
The intraembryonic coelom give rise to
lining epithelium for the pleural cavity or
the peritoneum cavity.
foregut will develop into
esophagus
unsplit part of the intraembryonic mesoderm
Septum transversum
Before head fold formation, Septum transversum lies cranial to the
pericardial cavity.
After head fold formation, Septum transversum lies
caudal to pericardial cavity and ventral to foregut region.
Septum transversum gives rise to components of the
diaphragm
Septum transversum is innervated by
cervical part of the spinal cord
Foregut (Esophagus) is suspended from dorsal body wall by
its mesentery
4 different components go into the development of the diaphragm
Pleuroperitoneal membranes
foregut(dorsal mesentery of esophagus)
septum transversum
body wall(lateral thoracic wall)