module 25 (done)

Question 1

lips

Answer 1

labia, labium

Question 2

obicularis oris muscle

Answer 2

surrounding the mouth

Question 3

mucous membrane of inner oral cavity

Answer 3

non-keratinized, stratified squamous epithelium

Question 4

cheek muscle

Answer 4

buccinator (keeps food from falling out of moth) NOT chewing

Question 5

oral vestibule

Answer 5

framed on the inside by the gums and teeth and the outside by the cheeks and lips

Question 6

fauces

Answer 6

opening between oral cavity and throat

Question 7

oral cavity proper

Answer 7

gums and teeth to fauces

Question 8

hard palate

Answer 8

bones: maxillary and palatine bones

Question 9

soft palate

Answer 9

posterior orbital cavity
skeletal muscle, fleshier
manipulated when yawn, swallow or sing

Question 10

types of teeth

Answer 10

incisors, cuspid, premolars, molars

Question 11

labial frenulum

Answer 11

connecting lips to gums

Question 12

lingual frenulum

Answer 12

connecting tongue to floor of mouth

Question 13

uvula

Answer 13

drops down from center of soft palate (moves upwards when swallowing to keep food from entering nasal cavity)

Question 14

palatoglossal arch

Answer 14

towards front, surrounding tongue

Question 15

palatopharyngeal arch

Answer 15

forms superior and lateral margins of fauces

Question 16

palatine tonsils

Answer 16

between the two arches (palatoglossal & palatopharyngeal) clusters of lymphoid tissue that protect the pharynx (visible, large)

Question 17

lingual tonsils

Answer 17

at base of tongue, small bumps, first line of defense

Question 18

intrinsic muscles of tongue

Answer 18

allow you to change your tongue’s size and shape

Question 19

extrinsic muscles

Answer 19

allow you to move the tongue in space (protract, retract, elevate, and depress

Question 20

papillae

Answer 20

extensions of lamina propria of the mucosa, which are covered in stratified squamous epithelium

Question 21

fungiform papillae

Answer 21

mushroom shaped, cover a large area of tongue, contain taste buds!

Question 22

filiform papillae

Answer 22

long and thin, have touch receptors that help move food around in mouth, create abrasive surface (cats)

Question 23

lingual glands

Answer 23

secrete mucus and watery serous fluid that contains lingual lipase

Question 24

extrinsic muscles of tongue

Answer 24

1. genioglossus (protrude tongue)
2. hyoglossus (depresses/retraction)
3. styloglussus (retraction /elevation)
4. palatoglossus (elevates, draws soft palate towards tongue)

Question 25

intrinsic muscles of tongue

Answer 25

originate and insert within the tongue

Question 26

three salivary glands

Answer 26

sublingual glands, submandibular gland, parotoid gland

Question 27

sublingual duct

Answer 27

drain into mouth through sublingual duct, innervated by CN VII (facial nerve)

Question 28

submandibular gland

Answer 28

produces 70% of saliva through submandibular duct, innervated by CN VII (facial nerve)

Question 29

parotid gland

Answer 29

near ear, secrete saliva through parotid duct, innervated by CN IX (glossopharyngeal nerve)

Question 30

deciduous teeth

Answer 30

baby teeth (20)

Question 31

permanent teeth

Answer 31

older (32 of them)

Question 32

incisors

Answer 32

four top, and four bottom, are the sharp front teeth you use for biting into food

Question 33

cuspids (or canines)

Answer 33

(4) flank the incisors and have a pointed edge (cusp) to tear up food. These fang-like teeth are superb for piercing tough or fleshy foods.

Question 34

premolars (bicuspids)

Answer 34

which have an overall flatter shape with two rounded cusps useful for mashing foods. (8 of them)

Question 35

molars

Answer 35

12 of them, which have several pointed cusps used to crush food, so it is ready for swallowing

Question 36

alveolar process

Answer 36

socket where teeth are secured

Question 37

gingivae

Answer 37

gums, soft tissues that line the alveolar processes and surround the necks of the teeth

Question 38

periodontal ligament

Answer 38

teeth held in socket by this CT

Question 39

main part of tooth (2)

Answer 39

crown and root

Question 40

pulp cavity

Answer 40

within the crown and root, containing loose CT, nerves and blood vessels run through

Question 41

root canal

Answer 41

region of pulp cavity that runs through root of tooth

Question 42

dentin

Answer 42

bone like tissue

Question 43

cementum

Answer 43

covers dentin, harder bone like layer

Question 44

enamel

Answer 44

hardest substance in body, crown of each tooth

Question 45

lingual lipase

Answer 45

activated in stomach, breaks down triglycertides into fatty acids

Question 46

muscles that move jaw

Answer 46

mom makes tasty lasagna masseter, medial pterygoid, temporalis, lateral pterygoid

Question 47

temporomandibular joint TMJ

Answer 47

connects temporal bone and mandible in a synovial joint

Question 48

masseter

Answer 48

main muscle used for chewing, elevates mandible

Question 49

temporalis

Answer 49

retracts the mandible

Question 50

lateral pterygoid

Answer 50

Lateral LOWERS jaw

Question 51

medial pterygoid

Answer 51

elevates jaw

Question 52

nerves of tongue

Answer 52

motor innervation - (CN XII) hypoglossal all of the intrinsic and extrinsic EXCEPT palatoglossus (vagus) general sensation - ant 2/3 is (CN V) trigeminal nerve, posterior 1/3 is glossopharyngeal (CN IX) taste - ant 2/3 is facial nerve (CN VII) and post 1/3 is (CN IX) glossopharyngeal

Question 53

types of papillae

Answer 53

fungiform, filiform, foliate, circumvallate

Question 54

gustatory pathway

Answer 54

taste buds --> glossopharyngeal (IX), vagus (X) and facial nerve (VII) travel to pons, thalamic nucleus and gustatory cortex in insula