Endoderm

Question 1

Which part of the primitive gut is enclosed by the head fold and its derivatives?

Answer 1

The foregut

Question 2

This structure appears during the 4th week as a “ballooning” of the caudal foregut?

Answer 2

Stomach

Question 3

This thin sheet of mesoderm joins the stomach to the body wall?

Answer 3

Dorsal Mesogastrium

Question 4

This mass of cranial mesoderm contributes to the diaphragm?

Answer 4

Septum Transversum

Question 5

From which fibrous tissue are the blood vessels and Kupffer cells derived?

Answer 5

Septum Transversum

Question 6

What is the source of endocrine cells in the pancreas?

Answer 6

Dorsal and Ventral Pancreatic Buds

Question 7

The development of the lower respiratory tract begins with the formation of the?

Answer 7

laryngotracheal groove

Question 8

How many levels of bronchial branching are present at birth?

Answer 8

17 levels

Question 9

What type of epithelium do you find in immature alveoli?

Answer 9

simple cuboidal

Question 10

What type of epithelium do you find in mature alveoli?

Answer 10

simple squamous

Question 11

What type of molecules are the main component of pulmonary surfactant?

Answer 11

phospholipids

Question 12

The diaphragm is innervated by which pair of cervical nerves?

Answer 12

phrenic nerves

Question 13

Tissues formed by endoderm?

Answer 13

• EPITHELIAL LAYER OF DIGESTIVE TRACT
• LINING ORGANS
• LINING OF RESPIRATORY TRACT

Question 14

Tissues formed by endoderm? (detailed)

Answer 14

• EPITHELIAL LAYER OF DIGESTIVE TRACT (osophagus, stomach, intestines, rectum)
• LINING ORGANS (liver, pancreas, gall bladder)
• LINING OF RESPIRATORY TRACT (trachea, bronchi, lung)