Larynx

Question 1

What innervates the constrictor muscles of the pharynx?

Answer 1

CN X

Question 2

What innervates the stylopharyngeous m.?

Answer 2

CN IX

Question 3

What innervates the tensor veli palatine m.?

Answer 3

CN V3

Question 4

What provides sensory to the pharynx muscles?

Answer 4

CN IX

Question 5

Tongue points to the right, when asked to point forward.

Answer 5

Right CN XII injured.

Question 6

What artery does the CN XII cross?

Answer 6

Carotid a.

Question 7

What does CN IX cross?

Answer 7

The stylopharyngeous m. and internal carotid a.

Question 8

What nerve accompanies the superior thyroid a.?

Answer 8

External branch of the superior laryngeal n.

Question 9

What nerve accompanies the superior laryngeal a.

Answer 9

Internal branch of the superior laryngeal n.

Question 10

What nerve accompanies the inferior thyroid a.?

Answer 10

Recurrent laryngeal n.

Question 11

Describe the motor innervation of CN X in the mouth/pharynx/larynx, and name the exceptions

Answer 11

CN X supplies motor innervation to (1) muscles of the pharynx and larynx, with the exception of stylopharyngeus, and (2) the muscles of the palate, with the exception of tensor veli palatini.