lec 3

Question 1

The palatine aponeurosis is formed by

Answer 1

tensor vili palatini

Question 2

The muscles attached to the aponeurosis include

Answer 2

extrinsic -->
levator veli palatine 
palatopharyngeal 
palatoglossuse
intrinsic-->
musculus uvulae

Question 3

Tensor veli palatine action

Answer 3

Acting on both sides, they tighten the palatine aponeurosis, so that other muscles can alter the position of the soft palate.
Also, it opens the austachian tube to equalize air pressure between nasal cavity and middle ear.

Question 4

Levator veli palatine action

Answer 4

Bilateral contraction of the levator veli palatine, pulls the soft palate upwards and backwards, shut off the nasal part of the pharynx from the oral part.

Also, opens the austachian tube, and permits equalization of air pressure between nasal cavity and middle ear

Question 5

action of palatopharyngeous

Answer 5

Acts with the stylopharyngeus and sulpingopharyngeus, to elevate the pharynx
and larynx during swallowing so that the pharynx becomes shorter

Question 6

The tensor veli palatini muscle is supplied by

Answer 6

mandibular n.

Question 7

all the muscles of soft palate are innervated by———except———

Answer 7

pharyngeal plexus , tensor veli palatini

Question 8

Sensory Innervation of the Palate

Answer 8

greater + lesser palatine - nasopalatine (maxillary)

glossopharyngeal (only soft palate)

Question 9

Blood Supply of the Palate

Answer 9

Greater Palatine artery (branches of maxillary artery).
Ascending palatine artery (branch of facial artery).
Ascending pharyngeal artery (external carotid)

Question 10

3 longitudenal muscles in the wall of pharynx

Answer 10

stylopharyngeus
palatopharyngeus
salpingopharyngeus

Question 11

the gap btw superior and middle constrictors has

Answer 11

stylopharyngeal m.

Question 12

the triangular gap btw middle and inferior constrictors has

Answer 12

covered by thyrohyoid membrane

that is pierced by superior laryngeal vessel + internal laryngeal N.

Question 13

which musvcle does the stylopharyngeus join

Answer 13

the palatopharyngeal

Question 14

all pharyngeal muscles are supplied by ———– except ————

Answer 14

pharyngeal plexus
stylopharyngeus –> glossopharyngeus
cricopharyngeous –> external laryngeal N.

Question 15

action of cricopharyngeus

Answer 15

act as a sphincter on the lower part of pharynx preventing air from entering

Question 16

action of pharyngobasilar fasia

Answer 16

keeps nasopharynx permanently open for breathing

Question 17

what type of cells are in oropharynx and laryngopharynx

Answer 17

stratified squamous epithelium

Question 18

what type of cells in the nasopharynx

Answer 18

pseudostratified columnar and ciliated

Question 19

the space btw base of skull and superior constrictor has

Answer 19

tensor + lavtor veli palatine

covered by pharyngobasilar fascia

Question 20

gap btw middle + inferior constrictors is closed by

Answer 20

thyrohyoid membrane
peirced by internal laryngeal nerve
superior laryngeal vessels