Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

FSM > Quiz 3 > Flashcards

Quiz 3 Flashcards

(72 cards)

Start Studying
1
Q

Job of the mitochondria

A

energy/ power house

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Golgi apparatus job?

A

Sort and package neurotransmitters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the three types of neurons

A

unipolar- not in human body one axon
~pseudo-unipolar- most sensory neuron
~bipolar only found in CN 2,5,8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the majority of neurons?

A

Multi polar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Explain pseudo polar

A

….

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Explain bipolar

A

…..

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the most numerous glia?

A

Astrocyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do astrocytes do?

A

~communicate with the neuron
~regulate chemical content of extra cellular space
~take up excessive potassium
~ pathway for neuron recovery after injury
~

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What do astrocytes form?

A

components of blood brain barrier.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the only in the brain and spinal cord?

A

Oligodendrocyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does Oligodendrocyte do?

A

~insulates axons by myelin sheath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Difference in Oligodendrocyte and swan cell

A

~sends to lots of different neruo ns “snap bracelets”

~1 on 1 relationship and with in the axon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Schwann cell what do they do?

A

insulates axon by providing myelin sheath

in PNS only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Neuroal stem cells are present where?

A

in kids and adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Explain Neuroal stem cells

A

~immature and undifferentiated
~precursors to neurons and glia
~through maturation and differentiation, can a rind into cells
~self renewal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is leads to proliferation?

A

growth factor in Neuroal stem cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What leads to increased growth factor?

A

aerobic exercise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

how do neurons communicatie

A

sunapse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the synapse?

A

point of connection from one neuron to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is a neruotransmitter

A

a chemical that is released into the synaptic cleft which communicates information from one neuron to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What happens and the end of the axon?

A

neurotransmitter needs to get from soma to presynaptic terminal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the two types of transports?

A

Anterograde transport

Retrograde transport

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Anterograde transport

A

Neurotransmitter moves from soma through axon to the presynaptic terminal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Retrograde transport

A

Transport of substances from synapse back to the soma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Axo-somatic synapse
...
26
Axo-dendritic synapse
...
27
Axo-axonic synapse
.
28
What is convergence
multiple axons terminate on a singe neuron
29
What is divergence
a single neuron send of many axons which terminate on different cells
30
Leak
diffusion of a small number of ions through the membrane at a slow continuous rate
31
modiality-gate
~specific to sensory stimuli
32
ligand-gated
.
33
voltage-gated
.
34
What are the two types of gradients?
~concentration | ~electrical
35
What do these two gradient types do?
mediate flow of ions in and out of cells is balanced
36
What do cells use the sodium-potassium pump do?
maintain the resting potential
37
what is the concentration rate of sodium potassium pump
2 K in 3 leave kick out more than you let in
38
where is electric potential?
inside and outside of the cell
39
What is the resending membrane potential
- 70 mV
40
what is the precursor to an action potential
local potental
41
what are the two ways potential can be added together?
spatial summation | temporal summation
42
Spatial summation
multiple axons coming together and adding up their signals at the same time
43
temporal summation
f/ one location but you get multiple signals in a short period of time
44
What is an excitatory post synaptic potential?
Na comes in | more positive
45
What is inhibitory post synaptic potentials
~fight against action potential ~more negative cells flow into the cell ~ more negative
46
What is the effect of ipso?
.
47
inhibition of a ___ results in a
.
48
When is an action potential fired
once the membrane potential reached the threshold
49
What are the ways to reach a threshold?
spacial or temporal summation
50
Does the amount the action potential will change?
all or nothing principle | will fire the same amount with the same intensity with same
51
Absolute refractory period
no matter how large the stimulus | IT IS IMPOSSIBLE TO TIRGGER ANOTEHR AP
52
Relative refractory period
an AP may be triggered | but it will take a larger stimulus
53
what is the purpose of refractory periods?
make sure it is going forwards and not backwards Million dollar $$ (make sure)
54
Propagation of an action potential at the synpase
.
55
presynaptic facilitation and inhibition
.
56
why do we want ap to be propagated?
to get it where we want it to go
57
how does ap propagate?
spread positive signal down the axon. from more to less composition spreading down. ---- keeps it form join backwards
58
what is salutary conduction
.
59
what does the myelin do
~faster ap proprogation ~provides insulation ~preventin gthe leakage of current ~keeping ap about threshold
60
Thicker myelin-->
faster conduction
61
What are nodes of ranvier
high density of na+ and K+ channels | ***
62
how often are nodes of ranvier?
1-2 mm
63
What is endoneruon
.
64
what makes up a nerve?
.
65
what receives the vascular supple
---
66
Acetycholine
neuromuscular junction | ~heart
67
Norepinephrine
Located in brain | ~alertness and arousal
68
serotonin
brain | mood and sleep
69
glutatmate
~brain lerarnign and development ~excitatory
70
GABA
~brain | ~major inhibitory neurotransmitter in the brain
71
Dopamine
``` ~brain ~movement motivation cognitation sleep mood attention memory learning ```
72
Dopamine is at the heart of
parkensins

FSM (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions