Embryology (Part 3) Flashcards Preview

S1 - Embryology > Embryology (Part 3) > Flashcards

Flashcards in Embryology (Part 3) Deck (148)
Loading flashcards...
1

Does cranial nerve V3 provide innervation to region (A), (B), or (C)? Does it provide sensation or taste?

(C) anterior two thirds of the tongue; sensation

2

Does cranial nerve VII provide innervation to region (A), (B), or (C)? Does it provide sensation or taste?

(C) anterior two thirds of the tongue; taste

3

Does cranial nerve IX provide innervation to region (A), (B), or (C)? Does it provide sensation or taste?

(B) posterior one third of the tongue; both

4

Does cranial nerve X provide innervation to region (A), (B), or (C)? Does it provide sensation or taste?

(A) extreme posterior two thirds of the tongue; both

5

The malleus of the ear is formed from what fetal structure?

Branchial arch 1

6

The incus of the ear is formed from what fetal structure?

Branchial arch 1

7

The stapes of the ear is formed from what fetal structure?

Branchial arch 2

8

The tensor tympani muscle in the ear is derived from what fetal structure?

Branchial arch 1

9

The tensor tympani muscle in the ear is innervated by what nerve?

Cranial nerve V3

10

The stapedius muscle in the ear is derived from what fetal structure?

Branchial arch 2

11

The stapedius muscle in the ear is innervated by what nerve?

Cranial nerve VII

12

The external auditory meatus is derived from what fetal structure?

Branchial cleft 1

13

The tympanic membrane is derived from what fetal structure?

The first branchial membrane

14

The eustacian tube, middle ear cavity, and mastoid air cells are derived from what fetal structure?

The first brancial pouch

15

The anterior two thirds of the tongue are derived from which branchial arch?

Branchial arch 1

16

Sensation in the anterior two thirds of the tongue is mediated by which cranial nerve?

V3

17

Taste in the anterior two thirds of the tongue is mediated by which cranial nerve?

VII

18

The posterior third of the tongue is derived from which branchial arches?

Branchial arches 3 and 4

19

Sensation in the posterior third of the tongue is mediated by which cranial nerve?

IX; as well as taste

20

Taste in the posterior third of the tongue is mainly mediated by which cranial nerve?

IX; as well as sensation

21

Taste in the extreme posterior of the tongue is mediated by which cranial nerve?

X

22

True or False: Taste and sensation in the anterior two-thirds of the tongue are mediated by the same cranial nerve.

False; cranial nerve VII mediates taste, while sensation is mediated by CN V3

23

Taste in the anterior two thirds of the tongue is mediated by cranial nerve _____, whereas taste in the posterior third of the tongue is mediated by cranial nerve _____.

VII; IX

24

Sensation in the anterior two thirds of the tongue is mediated by cranial nerve _____, whereas sensation in the posterior third of the tongue is mediated by cranial nerve _____.

V3; IX

25

Which cranial nerve supplies motor innervation to the tongue?

XII

26

Which cranial nerves mediate the sense of taste?

VII, IX, and X

27

Cranial nerves that mediate the sense of taste project to the ______ nucleus.

Solitary

28

Which cranial nerves mediate the sense of pain in the tongue?

V3, IX, and X

29

True or False: The muscles of the tongue are derived from occipital myotomes.

True

30

Which cranial nerve mediates taste and sensation in the extreme posterior portion of the tongue?

CN X