hyoid, larynx, swallowing

Question 1

hyoid apparatus communicate with

Answer 1

dorsally with petrous temporal bone of skull

ventrally with larynx

Question 2

which bone is unpaired in hyoid?

Answer 2

basihyoid

Question 3

how is hyoid apparatus laid out?

Answer 3

stylohyoid, epihyoid, keratohyoid linked at basihyoid

then linked to thyrohyoids

Question 4

sternhyoideus

Answer 4

draws hyoid caudally

cervical nerves

Question 5

thyrohyoideus

Answer 5

draws hyoid caudal

cervical nerves

Question 6

mylohyoideus

Answer 6

draws hyoid rostral

CN V

Question 7

geniohyoideus

Answer 7

draws hyoid rostrally

hypoglossal

Question 8

what is the vestibule

Answer 8

rostral funnel shaped part of larynx

ventral floor of the opening is the epiglottis and dorsal roof is arytenoid

Question 9

glottis

Answer 9

narrow slit between vocal cords

Question 10

infraglottic cavity

Answer 10

wide cavity running from glottis to trachea

Question 11

4 cartilages of larynx

Answer 11

thyroid, epiglottis, cricoid, artytenoid which is paired

Question 12

3 folds of larynx

Answer 12

vestibular marks caudal end of vestibule
vocal fold - vocal cord
aryepiglottic fold - epiglottis to arytenoid

Question 13

cricoartytenoideus lateralis

Answer 13

closes glottis

Question 14

all muscles of larynx innervated

Answer 14

recurrent laryngeal nerve
(cricothyroid - cranial laryngeal nerve)
vago-accessory complex
SVE

Question 15

cranial laryngeal nerve contains what fibres

Answer 15

AA, VE, SVE

Question 16

recurrent laryngeal nerve contains what fibres

Answer 16

AA, AE, SVE

Question 17

afferent supply of swallowing

Answer 17

glossopharyngeal and vagus

Question 18

efferent supply for swallowing

Answer 18

vago-accessory complex

glossopharyngeal - stylopharyngeus