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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
Secreted by hypothalamus to inhibit prolactin
Dopamine
26
Low levels associated with depression
Serotonin
27
Main inhibitory neurotransmitter in the spinal cord
Glycine
28
Main inhibitory neurotransmitter in the brain
GABA
29
Main excitatory neurotransmitter in the brain
Glutamine
30
Inhibits neurons in the brain involved with pain perceltopm
Opiod peptides
31
Involved in fast pain
Glutamate
32
Involved in Slow pain
Substance P
33
GABA B receptor Metabotropic or Ionotropic?
Metabotropic
34
GABA A receptor Metabotropic or Ionotropic?
Ionotropic
35
NIcotine receptor Metabotropic or Ionotropic?
Ionotropic
36
ANP receptor Metabotropic or Ionotropic?
Ionotropic
37
Opioid receptors Metabotropic or Ionotropic?
Metabotropic
38
Neurokinin receptor Metabotropic or Ionotropic?
Metabotropic
39
5HT3 receptor Metabotropic or Ionotropic?
Ionotropic
40
Glycine receptor Metabotropic or Ionotropic?
Ionotropic
41
NMDA receptor Metabotropic or Ionotropic?
Ionotropic
42
Enk > End and Dy
Kappa
43
Dyn >> End and Enk
Delta
44
End > Enk > Dy
Mu
45
[SARCOMERE] Borders
Z line
46
[SARCOMERE] Midline
M line
47
[SARCOMERE] Myosin only
H band
48
[SARCOMERE] Actin only
I band
49
[SARCOMERE] No myosin heads
Bare Zone
50
[SARCOMERE] Spans entire length of myosin
A band
51
Invaginations of the sarcolemma
T-tubules
52
Actuvates Ryanodine receptors (Ca channels)
DHPR
53
Spreads the action potential to all parts of the muscle
T-tubules
54
Protein that stores Ca in the SR
Calsequestrin
55
Pumps Ca from ICF to the SR
SERCA
56
Binds myosin to Z lines, binds Z lines to M line
Titin
57
Determines normal stiffness of the ventricular muscle
Titin
58
Largest protein in human body
Titin
59
Calcium release channel in the SR
Ryanodine
60
Stabilizes sarcolemma
Dystrophin
61
Binds Z lines to sarcolemma
Desmin
62
Molecular rulers that sets length of actin
Nebulin
63
Binds actin to Z lines
Actinin | CapZ Protein
64
Binds actin to beta dystroglycan in the sarcolemma
Dystrophin

PLE 2018 (9 decks)

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