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Neuro 2 exam > Cole Histology and Development > Flashcards

Cole Histology and Development Flashcards

1
Q

Filiform papillae location

A

most medial aspect of tongue

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2
Q

Filiform papillae structure

A

most abundant

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3
Q

Filiform papillae function

A

hold onto food and anything being masticated

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4
Q

Fungiform papillae location

A

middle aspect of tongue

lateral to filiform

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5
Q

Fungiform papillae structure

A

nonkeratinized stratified squamous

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6
Q

Circumvallate papillae location

A

posterior part of tongue in front of sulcus terminalis

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7
Q

Circumvallate papillae structure

A

surrounded by trench

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8
Q

Circumvallate papillae function

A

have hundreds of taste buds and where you can suspend food

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9
Q

Foliate papillae location

A

side of tongue

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10
Q

Foliate papillae structure

A

have serous glands on top, taste buds in lateral wall

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11
Q

Foliate papillae function

A

not well developed in humans but is in other animals

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12
Q

3 components of taste buds

A

taste receptor, supporting cells, and precursor cells (basal cells)

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13
Q

Taste receptor - basal portion

A

contacts afferent nerve terminal derived from sensory ganglia of the facial, glossopharyngeal and vagus nerves

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14
Q

How long do taste buds last?

A

2 weeks and then remade

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15
Q

Supporting cells

A

immature taste buds that turn into mature taste buds

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16
Q

Precursor cell- basal cell

A

give rise to supporting cell

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17
Q

Ebner’s gland location

A

in connective tissue and in all things that have taste buds

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18
Q

What 2 papillae is Ebner’s glands associated with

A

foliate and circumvallate

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19
Q

Ebner’s gland secretions

A

secrete lingual lipase and VEGP

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20
Q

VEGP

A

Von Ebner’s gland protein

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21
Q

VEGP function

A

binds flavorful chemicals and helps pick up and transport food

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22
Q

Tastents

A

soluble chemical taken into the taste bud

23
Q

Taste receptor subunits

A

G protein, a b, y subunits

24
Q

Taste receptor function

A

tastents interact with subunit

25
Q

Location of Taste receptors

A

apical microvilli of taste receptors

26
Q

6 confirmed taste

A

sweet, salty, sour, bitter, umami, fat

27
Q

Location of sweet

A

tip of tongue

28
Q

Sweet flavor

A

sugars

29
Q

Location of salty

A

posterior and lateral to tip of the tongue

30
Q

Salty flavor

A

sodium

31
Q

Location of sour

A

anterior 2/3 of dorsum and along the lateral margin

32
Q

Sour flavor

A

acidic, H+

33
Q

Location of bitter

A

posterior, medial tongue

34
Q

Bitter flavor

A

caffeine, morphine, and nicotine

35
Q

Location of Umami

A

Unknown

36
Q

Umami flavor

A

L glutamate and other amino acids

37
Q

What does a fat taste detect

A

texture of fat

38
Q

Nasal cavity structure - respiratory function

A

lined with pseudostratified columnar epithelium and goblet cells

39
Q

Lamina propria in nasal cavity

A

contains both serous and mucous glands to moisten air and trap particles

40
Q

Functions of Nasal mucosa

A

air hydrations, air filtration, and temperature regulation

41
Q

Air hydration

A

secrete serous and mucous exocrine glands and goblet cells to moisten the surface of nasal cavity
- add water vapor to inspired air

42
Q

Air filtration

A

conchae interrupt air flow and create turbulence

matter adheres to conchae and cilia moves it to nasopharynx

43
Q

Temperature regulation

A

can warm or cool inspired air

44
Q

Structure of olfactory epithelium

A

pseudostratified columnar with 2 types of cells - olfactory cells, supporting cells, and basal cells

45
Q

Olfactory cells

A

bipolar sensory neurons where dendrite extends and dilates to from olfactory vesicle

46
Q

Supporting cells of Olfactory epithelium

A

sustentacular cells, columnar cells with oval nuclei

47
Q

Function of supporting cells of olfactory epithelium

A

provide physical support, nourishment and electrical insulation of the olfactory cell

48
Q

Olfactory bulb

A

axon terminals connect with synaptic terminals of mitral cells

49
Q

Mitral cells

A

connect olfactory bulb to make glomeruli

50
Q

Glomeruli

A

connection between axon terminals of olfactory bulb and mitral cells

51
Q

Kallman Syndrome

A

dont have sense of smell because don’t make GnRH –> dont make LH –> dont have gonadal dvpt

52
Q

Anosmia for Kallman Syndrome

A

lack of neurons in the brain (mitral cells) that receive input from olfactory neurons

53
Q

Defective gene in Kallman Syndrone

A

KAL1

54
Q

look at drawing of olfaction process

A

ok

Neuro 2 exam (8 decks)

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