7. Head and face structures Flashcards Preview

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Flashcards in 7. Head and face structures Deck (29):
1

TMJ

temporomandibular joint

2

type of cartilage in TMJ
- difference?

fibril cartilage
- stronger
- padding
- resistance to wear and tear
- not as good for sliding motions
* in contrast to articular cartilage

3

motions of tmj
- muscles responsible

protrusion
- lateral pterygoid

retraction
- temporalis

elevation
- temporalis and medial pterygoid

depression
- relaxation of elevators

side to side
- medial and lateral pterygoids

4

muscle that bulges when clenching

temporalis

5

TMJ innervation

mandibular branch of trigeminal nerve

6

distinguishing between medial and lateral pterygoids

medial
- runs vertically

lateral
- runs horizontally

7

distinguishing between masseter and pteygoid

masseter
- attaches superficial side of mandible
- lateral surface of ramus of mandible

medial pterygoid
- deep mandible
- medial (inside) surface of mandible

8

papillae on anterior tongue

fungiform

9

papillae on mid tongue

filiform

10

papillae on posterior tongue

vallate

11

papillae on lateral tongue (outside edges)

foliate

12

taste buds are found

in all papillae but foliform (outside surface)

13

underside of tongue made of

mucosal folds
- no papillae

14

muscles in the tongue
- action

4 intrinsic
- change tongue shape
4 extrinsic
- move tongue in space

15

superficial temporal vein drain into

internal and external jugular vein

* note: arteries are different

16

role of parotid gland

major salivary gland
- silvia through parotid duct into oral cavity

17

innervation of tongue muscles

3 extrinsic by hypoglossal nerve
4th by vagus nerve

4 intrinsic by hypoglossal nerve

18

3 extrinsic tongue muscles to know
- action

styloglossus
- smallest of 4
- retraction and elevation

genioglossus
- majority of tongue body
- protrusion and depression

hyoglossus
- retraction and depression
- floor of submandibular triangle

19

tongue arterial supply

lingual artery

20

uvula composed of

connective tissue, glands and muscle fibers

21

3 major salivary glands

parotid
- largest
- posterior

submandibular gland
- most inferior, below mandible

sublingual gland
- posterior to mandible

22

guides air through nasal cavity

chonchea
- sup, mid and inf

23

5 cartilages of the nasal cavity

septal cartilage
alar cartilage (left and right)
lateral cartilage (left and right)

24

pituitary gland
- location

small bulge on hypothalamus
- secrete hormones that regulate homeostasis
- blood pressure and growth (HGH)
- sits above sigmoid sinus

25

what are sinuses

air filled pockets lined with mucosa (secrete mucus)
- innervated by trigeminal nerve

26

sinuses of skull

frontal (lower forehead)
ethmoidal (nasal bridge)
maxillary (largest - cheek bones)
sphenoid (behind nasal cavity)

27

sinus headahce

pressure buildup in sinuses
- trigeminal nerve

28

palatine nerve

branch of maxillary nerve (trigeminal nerve)
- roof of mouth
- tonsils
- line membrane of nasal cavity

29

What are tonsils

lymph tissue