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PLE 2018 > Physio - cell physiology > Flashcards

Physio - cell physiology Flashcards

1
Q

Tight intercellular junction

A

Desmosomes

Macula adherens

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2
Q

Bridge for sharing of small molecules between cells

A

Gap Junction

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3
Q

Barrier to movement of proteins across membranes

A

Tight Junction

Zonula Occludens

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4
Q

Increased surface area for contact

A

Zonula Adherens

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5
Q

Equilibrium potential of Calcium

A

+120

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6
Q

Equilibrium potential of Sodium

A

+65

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7
Q

Equilibrium potential of Potassium

A

-85

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8
Q

Equilibrium potential of Chloride

A

-85

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9
Q

Macroglia that forms the myelin in the PNS

A

Schwann cells

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10
Q

Macroglia that forms the myelin in the CNS

A

Oligodendrocytes

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11
Q

Tissue macrohpage that act as a scavanger, removing debris in the nervous system

A

Microglia

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12
Q

Astrocytes in the white matter

A

Fibrous astrocytes

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13
Q

Astrocytes in the gray matter

A

Protoplasmic astrocytes

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14
Q

Macroglia that send processes that envelop synapses and help form the BBB

A

Astrocytes

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15
Q

TTriggers REM sleep

A

Acetylcholine

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16
Q

Decreased levels in Huntington’s dementia and Alzheimer’s dementia

A

Acetylcholine

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17
Q

Neuromodulator in the CNS

Neurotransmitter in the PNS

A

Norepinephrine

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18
Q

Primary neurotransmitter from post ganglionic sympa neurons

A

Norepinephrine

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19
Q

Secreted in the substantia nigra

A

Dopamine

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20
Q

Found in the median raphe of the brain stem

A

Serotonin

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21
Q

Inhibitory neurotransmitter, vasodilator

A

Nitric Oxide

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22
Q

Relieves effects of bee sting by decreasing contraction of airway smooth muscles

A

Epinephrine

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23
Q

Greater beta 2 action than NE

A

Epinephrine

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24
Q

Halflife of NE

A

2 mins

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25
Q

Secreted by hypothalamus to inhibit prolactin

A

Dopamine

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26
Q

Low levels associated with depression

27
Q

Main inhibitory neurotransmitter in the spinal cord

28
Q

Main inhibitory neurotransmitter in the brain

29
Q

Main excitatory neurotransmitter in the brain

30
Q

Inhibits neurons in the brain involved with pain perceltopm

A

Opiod peptides

31
Q

Involved in fast pain

32
Q

Involved in Slow pain

A

Substance P

33
Q

GABA B receptor

Metabotropic or Ionotropic?

A

Metabotropic

34
Q

GABA A receptor

Metabotropic or Ionotropic?

A

Ionotropic

35
Q

NIcotine receptor

Metabotropic or Ionotropic?

A

Ionotropic

36
Q

ANP receptor

Metabotropic or Ionotropic?

A

Ionotropic

37
Q

Opioid receptors

Metabotropic or Ionotropic?

A

Metabotropic

38
Q

Neurokinin receptor

Metabotropic or Ionotropic?

A

Metabotropic

39
Q

5HT3 receptor

Metabotropic or Ionotropic?

A

Ionotropic

40
Q

Glycine receptor

Metabotropic or Ionotropic?

A

Ionotropic

41
Q

NMDA receptor

Metabotropic or Ionotropic?

A

Ionotropic

42
Q

Enk > End and Dy

43
Q

Dyn&raquo_space; End and Enk

44
Q

End > Enk > Dy

45
Q

[SARCOMERE]

Borders

46
Q

[SARCOMERE]

Midline

47
Q

[SARCOMERE]

Myosin only

48
Q

[SARCOMERE]

Actin only

49
Q

[SARCOMERE]

No myosin heads

50
Q

[SARCOMERE]

Spans entire length of myosin

51
Q

Invaginations of the sarcolemma

52
Q

Actuvates Ryanodine receptors (Ca channels)

53
Q

Spreads the action potential to all parts of the muscle

54
Q

Protein that stores Ca in the SR

A

Calsequestrin

55
Q

Pumps Ca from ICF to the SR

56
Q

Binds myosin to Z lines, binds Z lines to M line

57
Q

Determines normal stiffness of the ventricular muscle

58
Q

Largest protein in human body

59
Q

Calcium release channel in the SR

60
Q

Stabilizes sarcolemma

A

Dystrophin

61
Q

Binds Z lines to sarcolemma

62
Q

Molecular rulers that sets length of actin

63
Q

Binds actin to Z lines

A

Actinin

CapZ Protein

64
Q

Binds actin to beta dystroglycan in the sarcolemma

A

Dystrophin

PLE 2018 (9 decks)

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