Veterinary Anatomy Quiz

From which layer does the digestive system develop?

• Ectoderm

• Mesoderm

• Endoderm

• Epidermis

How many pairs of pharyngeal pouches are there?

• Five

• Six

• Four

• Three

Which nerve supplies the muscles of mastication in the first pharyngeal arch?

• Glossopharyngeal nerve (IX)

• Vagus nerve (X)

• Facial nerve (VII)

• Mandibular nerve (V)

What does the second pharyngeal pouch form?

• Palatine tonsil

• Parathyroid gland

• Eustachian tube and tympanic cavity

• Thymus

Which part of the stomach becomes the fundus?

• Cranial part of greater curvature

• Middle part

• Ventral border

• Caudal part

What is the significance of the lungs being able to float?

• Digestion

• Circulation

• Excretion

• Breathing

Which nerve supplies the root (caudal 1/3) of the tongue?

• Mandibular nerve (V)

• Glossopharyngeal nerve (IX)

• Vagus nerve (X)

• Facial nerve (VII)

What does the fourth pharyngeal pouch form?

• Distal parathyroid gland

• Thymus (10%)

• Thymus (90%)

• Proximal parathyroid gland

Which part of the gut gives rise to the distal part of the duodenum, jejunum, and proximal ileum?

• Cranial limb

• Caudal limb

• Herniation

• Apex of the loop

What does the fifth pharyngeal pouch form?

• Eustachian tube and tympanic cavity

• Palatine tonsil

• Thymus

• Parathyroid gland