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Flashcards in anatomy Deck (94)
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1

which muscles are used to close the jaw?

- temporalis
- masseter
- medial pterygoid

2

what muscle is used to open the jaw?

- lateral pterygoid

3

where is the temporalis found?

- coronoid process of mandible to temporal fossa

4

where is the masseter found?

- angle of mandible to zygomatic arch

5

where is the lateral pterygoid found?

- condyle of mandible to pterygoid plates of sphenoid bone

6

where is the medial pterygoid found?

- angle of mandible (medial side) to pterygoid plates of sphenoid bone

7

what is the only nerve that comes off of the pons?

the trigeminal nerve - sensory and motor fibres

8

what is the course of the trigeminal nerve?

- from pons
- through foramen ovale
- to muscle of mastication and sensory area

9

what is the posterior 1/3 of the tongue nerve supplied by?

- CN9 (IX)
- taste and general sensation

10

what is the anterior 2/3rd of the tongue supplied by?

- CN 5 - CNV3 and CNVII

11

what is the course of the facial nerve and what does it supply?

- from pontomedullary junction
- travel through temporal bone via internal acoustic meatus then stylomastoid foramen
- to supply
- taste anterioe 2/3rds of tongue
- muscles of facial expression
- glands in floor of mouth (salivaiton)

12

what nerve supplys taste and parasympa?

- CN VIII = chorda tympani
- it connects to the lingual nerve ( CN C3)

13

what supplies the inferior hals of the oral cavity?

CN V3

14

what supplied the superior half of the oral cavity and palate?

- CN V2

15

what is the sensory part of the gag refex carried by?

- nerve fibres in CN IX

16

what is the motor part of the gag reflex carried by?

- nerve fibres in CN IX and CN X

17

what does spraying a local anaesthetic block?

- sensory action potentials in CN V2, CN V3, CN VII, CN IX

18

what is the course of CN V2

- from pons
- through foramen rotundum
- to sensory area (mid face)

19

what is the course of CN IX?

- from medulla
- through jugular foramen
- to the posterior wall of oropharync (sensory), paroti gland (secretomotor), and post 1/3rd of the tongue (sensation and taste)

20

where does the parotid glad secrete from?

- upper 2nd molar

21

where does the submandibular gland secrete via?

- lingual caruncle

22

where does the sublingual . gland secrete via?

- several ducts superiorly

23

what nerve supplied the parotid?

- CN IX

24

what nevre supplies the submandibular?

CN VII

25

what nerve supplies the sublingual?

CN VII

26

what do extrinsic muscles do to the tongue?

- chnage the position of the tongue during mastication, swallowing and speech

27

what do the skeletal intrinsic muscle do to the tongue?

- modify the shape of the tongue during function

28

what is the course of the hypoglossal nerves (CN XII)

- from medulla
- through hypoglossal canal
- to extrinsic and intrinsic muslce of tongue (expect palatoglossus)

29

what are the circular (constrictor) muscles of the pharynx innervated by?

- CN X (vagus)

30

what are the longitudinal muscle of the pharynx innervated by and what is their role?

- CN X NAD IX
- these elevate the larynx