Ch 18 Lec 2 - General & Special Senses Flashcards Preview

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Flashcards in Ch 18 Lec 2 - General & Special Senses Deck (42):
0

respond to substances dissolved in surrounding fluids

chemoreceptors

1

chemoreceptors monitor chemical composition of body blank

fluids

2

chemoreceptors are found inside the CNS and the blank

medulla

3

chemoreceptors are found in these two bodies

aortic, carotid

4

sense of smell

olfaction

5

olfactory organ is located within the blank cavity on either side of nasal septum

nasal

6

olfactory organ covers the blank of the ethmoid

cribriform plate

7

olfactory organ made up of olfactory blank

epithelium

8

three things in the olfactory epithelium

olfactory receptors, supporting cells, basal cells

9

olfactory cells are covered in secretions from blank

olfactory glands

10

olfactory receptors are highly modified blank neurons

bipolar

11

olfactory receptors have blank that extend into mucus secreted by olfactory glands

cilia

12

odorous particles dissolve into mucus and cause blank

depolarization

13

olfactory nerve does not go through blank

thalamus

14

smells can trigger blank

strong emotion

15

smells are interpreted in blank and blank lobes

temporal, frontal

16

there are blank primary smells

fifty

17

olfactory cells adapt blank

quickly

18

olfactory cells can blank but blank with age

reproduce, decrease

19

combinations of 50 primary smells allow us to distinguish blank of smells

thousands

20

taste sense

gustation

21

chemoreceptors in structures called blank in taste

taste buds

22

taste buds on superior surface of tongue in blank

papillae

23

epithelial projections where taste buds lie

papillae

24

three types of papillae

filiform, fungiform, circumvallate

25

there are about blank gustatory cells per taste bud

40

26

these replace receptors every 10 to 12 days

basal

27

gustatory cells extend blank called a taste hair into a taste pore

microvilli

28

gustatory pathway uses cranial nerves blank blank and blank

VII, IX, X

29

gustatory pathway has blank fibers that synapse with blank in medulla

afferent, nucleus solitarius

30

gustatory pathway goes to blank and blank

thalamus, cerebral cortex

31

primary tastes

sour, sweet, salt, bitter, water, umami

32

external structure supported elastic cartilage of external ear

auricle

33

canal to middle ear

external acoustic meatus

34

external ear ends at blank

tympanic membrane

35

these make wax in the external acoustic meatus

ceruminous glands

36

there are also blank in the external acoustic meatus

hairs

37

two functions of external ear

protect middle/inner ear, limit microorganism growth, funnel vibrations, deny access to foreign objects

38

middle ear consists of the blank which is an air filled space between external and inner ear

tympanic cavity

39

part of middle ear that can be induced by chewing or yawning

auditory tube

40

auditory tube allows for blank to get in and cause ear infection

microbes

41

most ear infections occur in the blank

middle ear