Posterior 1/3 Tongue Formation

Question 1

what give rise to the root or base of the tongue (posterior 1/3)?

Answer 1

Hypobranchial eminence

Question 2

the hypobranchial eminence comes from which arch?

Answer 2

third branchial arch

Question 3

the mucosa for the posterior 1/3 comes from what arch?

Answer 3

third branchial arch

Question 4

what are the muscles for the tongue?

Answer 4

Intrinsic muscles and

Extrinsic muscles

Question 5

where to intrinsic and extrinsic muscles arise from?

Answer 5

arise from the occipital somites

Question 6

where do the occipital somites develop near?

Answer 6

near the base of the brain

Question 7

where do the somites travel to?

Answer 7

to get to the tongue

Question 8

what cranial nerve are the occipital somites connected to?

Answer 8

cranial nerve XII (hypoglossal nerve)

Question 9

the XII cranial nerve is ______ _______to the tongue?

Answer 9

motor innervation

Question 10

the tongue has many innervations. what are they?

Answer 10

IX–for the (posterior 1/3)
V(3)—for the general sensation for the anterior 2/3s
VII—for the taste for the anterior 2/3s
XII–for the motor innervation to the tongue