head - digestive portion

Question 1

what is the opening between the upper and lower lips, and entrance to the oral cavity?

Answer 1

oral fissure (rima oris)

Question 2

what unites the upper and lower lips on each side?

Answer 2

angle of the mouth (commisures)

Question 3

what are the three accessory organs of the mouth?

Answer 3

tongue, teeth, salivary glands

Question 4

what is the space between the teeth and the lips?

Answer 4

labial vestibule

Question 5

what is the space between the teeth and the cheeks?

Answer 5

buccal vestibule

Question 6

what is the space within the dental arcades?

Answer 6

oral cavity proper

Question 7

where is the hard palate located?

Answer 7

rostral to the soft palate

Question 8

how many transerves ridges are in hard palate?

Answer 8

8-10

Question 9

what divides the hard palate into 2 halves?

Answer 9

median palatine raphe

Question 10

what papilla is located just caudal to the upper central incisive teeth?

Answer 10

incisive papilla

Question 11

what duct opens on either side of the incisive papilla?

Answer 11

incisive duct

Question 12

where does the incisive duct lead?

Answer 12

to the nasal cavity and the vomeronasal organ

Question 13

what organ has receptors for sexual stimuli?

Answer 13

vomeronasal organ

Question 14

what continues caudally from the hard palate to the intrapharyngeal opening?

Answer 14

soft palate

Question 15

what covers the soft palate?

Answer 15

respiratory muscosa then oral mucosa

Question 16

what is the action of palatine muscles?

Answer 16

shortening the soft palate

Question 17

what is the action of the tensor veli palatini?

Answer 17

tenses the soft palate

Question 18

what is the function of the levator veli palatini?

Answer 18

raises the soft palate

Question 19

what nerve supplies the soft palate?

Answer 19

minor palatine nerve

Question 20

what nerve supplies the mucosa of the hard palate?

Answer 20

major palatine nerve

Question 21

what nerves supply the pterygopharyngeal and palatopharyngeal muscles?

Answer 21

glossopharyngeal nerve (major sensory) and vagus nerve (major motor)

Question 22

what nerve innervates the tensor veli palatini m.?

Answer 22

mandibular nerve

Question 23

what are two names for tongue?

Answer 23

lingua and glossa

Question 24

what divides the tongue into two halves?

Answer 24

median sulcus or groove

Question 25

what is the median filiform structure of he tongue that may act as a stretch receptor?

Answer 25

lyssa

Question 26

what is the median fold that attaches the body of the tongue to the floor of the oral cavity?

Answer 26

frenulum

Question 27

what are the mechanical papillae?

Answer 27

filiform and conical papillae

Question 28

what are the gustatory papillae?

Answer 28

fungiform, vallate, and foliate papillae

Question 29

what are the smallest, most numerous papillae?

Answer 29

filiform

Question 30

what are the larger, less frequent papillae that are located on the dorsum of the caudal 1/3 of the tongue??

Answer 30

conical papillae

Question 31

what papillae contain the taste buds and found on the rostral 2/3 of the tongue?

Answer 31

fungiform

Question 32

what papillae contain taste buds and are found in forms of 2-3 pairs?

Answer 32

vallate

Question 33

what are the three extrinsic muscle of the tongue?

Answer 33

1. styloglosseus 2. hyloglosseus 3. genioglosseus

Question 34

what nerve innervates the rostral 2/3 of the tongue?

Answer 34

lingual nerve