week 4

Question 1

what is the initial portion of the nasal cavity

Answer 1

nasal vestibule

Question 2

the oval opening between the nasal cavity and the nasopharynx is the

Answer 2

chonae

Question 3

typically ____ large vallate papillae are present on the equine tongue,

Answer 3

3; one on each side and one in the middle

Question 4

foliate papillae are located where on the horse toungue

Answer 4

caudolateral potion

Question 5

number of vallate papillae on the ruminant tongue

Answer 5

3 or 4 on each side of the caudal region of the tongue

Question 6

conical papillae of ruminant tongue

Answer 6

resemble the buccal conical papillae (pointy)

Question 7

lenticular papillae on ruminant tongue

Answer 7

round, wide, and flat and resemble worn-down conical papillae

Question 8

what forms the boundary between the oral cavity and oropharynx

Answer 8

palatoglossal arch

Question 9

palatine tonsil location in the horse

Answer 9

lateral to the root of the tongue and caudal to the palatoglossal arch

Question 10

what is the lingual tonsil

Answer 10

a collection of lymphatic follicles on the root of the tongue. May blend laterally with the medial edge of the palatine tonsil

Question 11

in ruminants, tonsilar sinus leads to

Answer 11

palatine tonsil

Question 12

how is the tonsilar sinus in ruminants different from the tonsilar fossa in other species

Answer 12

the tonsilar sinus is surrounded by tonsil

Question 13

in the ox, what is the lingual tonsil

Answer 13

a collection of lymphatic follicles on the root of the tongue

Question 14

an overgrowth of plica (salpingopharyngea) has been incriminated as the cause of

Answer 14

congenital guttural pouch tympany

Question 15

what is the caudal boundary of the nasopharynx

Answer 15

intrapharyngeal ostium

Question 16

what is the intrapharyngeal ostium composed of

Answer 16

right and left palatopharyngeal arches

Question 17

medial retropharyngeal lymph nodes in the ruminant are located

Answer 17

caudolateral to the pharyngeal tonsil

Question 18

what are the boundaries of the laryngopharynx

Answer 18

begins at the level of the base of the epiglottis and extends to the level of the cricoid lamina

Question 19

what are the attachments of the hyopharyngeus

Answer 19

stylohyoid and thyrohyoid bones (and ceratohyoid bone in ruminatns); inserts on pharyngeal raphe

Question 20

what is the function of the hyopharyngeus

Answer 20

pharyngeal constrictor

Question 21

what are the attachments of the thyropharyngeus

Answer 21

arises from the thyroid cartilage and inserts on the pharyngeal raphe

Question 22

cricopharyngeus attachments

Answer 22

cricoid cartilage and inserts on the pharyngeal raphe

Question 23

What is the site of attachment for the vocal fold

Answer 23

vocal process

Question 24

what is the site of attachment for several intrinsic laryngeal muscles

Answer 24

muscular process

Question 25

rostral cornu articulates with

Answer 25

cartilage of the thyrohyoid bone

Question 26

caudal cornu articulates with

Answer 26

cricoid cartilage

Question 27

what is the function of the piriform recess

Answer 27

passageway around the larynx that allows saliva to flow into the laryngopharynx without swallowing

Question 28

aditus laryngis formed by

Answer 28

the edges of the epiglottis, aryepiglottic folds, and arytenoid cartilages

Question 29

vocalis muscle attachments

Answer 29

body of the thyroid cartilage and inserts on the muscular process; some fibers also nsert on the lateral surface of the vocal process

Question 30

what are the attachments of the mylohyoideus

Answer 30

the symphysis of the mandible to the lingual process of the basihyoid bone and thyrohyoid bone

Question 31

mylohyoideus m. function

Answer 31

raises the floor of the mouth, the tongue and the hyoid apparatus

Question 32

what are the attachments of the geniohyoideus

Answer 32

arises from the mandible near the symphysis and inserts on the lingual process of the basihyoid bone

Question 33

geniohyoideus action

Answer 33

draws the hyoid apparatus and tongue rostrally

Question 34

what are the attachments of the stylohyoideus

Answer 34

arises from the caudodorsal end of the stylohyoid bone and inserts on the basihyoid bone

Question 35

what is the function of the stylohyoideus

Answer 35

draws the thyrohyoid bone and larynx dorsocaudally

Question 36

what are the attachments of teh hyoglossus

Answer 36

coruses from the lingual process of the basihyoid bone and the thyrohyoid bone to the tongue

Question 37

what are the attachments of the genioglossus

Answer 37

medial surface of the mandible, just caudal to the symphysis to the tongue

Question 38

what is the funciton of the levator palpebrae superioris

Answer 38

to raise the upper eyelid

Question 39

what is the function of the dorsaloblique muscle

Answer 39

rotates the eye so that the dorsal aspect of the eye moves medially

Question 40

what is the function of the ventral oblique muscle

Answer 40

rotates the eye so that the ventral aspect of the eye moves medially

Question 41

what is the function of the retractor bulbi

Answer 41

retract the eye into the socket

Question 42

what is the function of the iridic granules

Answer 42

help shade the eye and may provide nutrients to the anterior chamber as well