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Zoology 1090 > 8: Neurons > Flashcards

8: Neurons Flashcards

1
Q

4 ganglia for CNS

A

Astrocyte
Oligodendrocytes
Microglia cells
Ependymal cells

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2
Q

2 cells for PNS

A

Satellite cells

Schwann cells

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3
Q

Astrocyte

A

Biggest and most common

CNS barrier

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4
Q

Oligodendrocytes

A

Wrapping called myelin sheath
Nodes (gaps)
Internodes (sheath)

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5
Q

Microglial cells

A

Smallest and least
Phagocytic
White blood cell

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6
Q

Ependymal cell

A

Lines epithelial
Canals
Creates CSF

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7
Q

Satellite cells

A

PNS barrier

Surrounds

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8
Q

Schwann cell

A

Wraps cells

Myelin sheath

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9
Q

White matter

A

Yes myelin

So just axon not dendrites or cell bodies

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10
Q

Gray matter

A

No myelin

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11
Q

Continuous

A

Slow response

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12
Q

Saltatory

A

Fast response

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13
Q

N1

A

Olfactory bulb (nose)

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14
Q

N2

A

Optic (eye)

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15
Q

N3

A

Oculomotor (eye)

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16
Q

N4

A

Trochlear (eye)

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17
Q

N5

A

Trigeminal (face)

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18
Q

N6

A

Abducens (eye)

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19
Q

N7

A

Facial (taste and emotion)

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20
Q

N8

A

Vestibulocochlear

Balance) (hearing

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21
Q

N9

A

Glossopharyngeal (homeostasis, saliva)

22
Q

N10

A

Vagus (trunk organs)

23
Q

N11

A

Accessory (neck/ traps)

24
Q

N12

A

Hypoglossal (tongue)

25
Q

Efferent

A

Motor

26
Q

Afferent

A

Sensory

27
Q

Somatic

A

Skeletal- Usually voluntary but also controls quick reflexes like after touching a hot stove

28
Q

Autonomic

A

Involuntary

Controls: smooth, cardiac, and glands

29
Q

Sympathetic on each organ

A 
Pupils dilate 
Heart speeds up 
Vessels constrict 
Bronchi dilate 
Inhibits all digestive organs 
Relaxes bladder 
Stimulates ejaculation
30
Q

Parasympathetic on each organ

A 
Pupils constrict 
Tear glands stimulate 
Heart slows 
Vessels dilate 
Bronchi constrict 
All digestive organs are stimulated 
Contracts bladder 
Stimulates erection
31
Q

Name the parts of the axon

A 
Dendrites 
Cell body
Axon hillock 
Axon 
Axon terminals
32
Q

Myelin

A

Sheath lining

Aids faster impulses

33
Q

Intracellular elements

A

K

34
Q

Extracellular elements

A

Cl

Na

35
Q

AP mV

A 
Resting -70
Threshold -55
Depolarization +10
(Na channels open) 
Repolarization- back to neg 
(K channels open)
Hyperpolarization -90
36
Q

Presynaptic

A

Axon terminal releases ACh

37
Q

Postsynaptic

A

Dendrites receive ACh message turn it into electrical message

38
Q

ACh-esterase

A

Breaks up ACh

39
Q

Gyri

A

Elevated ridges

40
Q

Sulci

A

Shallow grooves

41
Q

Fissure

A

Deep grooves

42
Q

Motor cortex

A

in frontal lobe

43
Q

Somatosensory

A

Parietal lobe

44
Q

Frontal lobe functions

A

Association
Speech
Personality

45
Q

Parietal lobe functions

A

Speech
Taste
Reading

46
Q

Occipital

A

Vision

47
Q

Temporal

A

Hearing
Smell
Balance

48
Q

Limbic hippocampus

A

Long term memory

49
Q

Limbic amygdala

A

Emotions

50
Q

Brain stem medulla oblongata

A

Basic life functions

Regulates vitals

51
Q

CSF draining system (6)

A

Starts in 2 lateral ventricle in cerebral hemisphere

Drain through interventricular foramen

To the third ventricle in diencephalon

Drains through cerebral aqueduct

To 4th ventricle

Drains into central canal

52
Q

12 nerve pneumonic

A 
Oh.    Olfactory 
Once.    Optic 
One.    Oculomotor 
Takes.    Trochlear 
The.    Trigeminal
Anatomy.    Abducens 
Final.    Facial 
Very.    Vestibulocochlear 
Good.    Glossopharyngeal 
Vacations.    Vagus 
Are.    Accessory 
Heavenly.    Hypoglossal

Zoology 1090 (15 decks)

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