Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy And Physiology > Lab > Flashcards

Lab Flashcards

1
Q

Dendrite

A

Form synapses or detect stimuli and are adapted to generate graded potentials toward cell body and axon hillock

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

Axon hillock

A

Trigger zone and first part of axon

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

Where are Na channels found?

A

Axon hillock, initiate action potential at threshold

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

Myelin

A

Phospholipid and protein layer around axons that ↑ the speed of action potentials

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

Schwann cell

A

Glial cells responsible for forming myelin sheath n PNS

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

Node of ranger

A

Gaps in myelin sheath that allow Lons to enter and exit the axon and propagate ap

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

Collateral axon

A

Major branch of axon that can deliver the AP to different target cells

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

Axon terminal/ synaptic knob

A

Last structure of axon that contains neurotransmitters that will be released to communicate W / target cell

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

Vescides

A

Store nuerot, and release them into synaptic cleft when stimulated

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

Unipolar neuron

A

I process, sensory

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

Unipolar location

A

Nuclei, PNS, CNS. Dorsal root ganglion, cranial gangland

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

Bipolar

A

Sensory,2 processes

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

Bipolar location

A

PNS, sensory path

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

Multipolar

A

Many processes, integration and motor

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

Multipolar location

A

PNS, CNS, autonomic ganglia

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

Myelin is made up of the membranes of

A

Schwann cans in DNS and ologodendrites in CNS

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

What carries impulses away from the cell body of neuron?

A

Axons

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

What neurons can be found in retina of the eye?

A

Bipolar

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

Schwann cells are only found in

A

Peripheral nervous system

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

Myelin_ conduction velocity

A

↑

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

The ‘blank’ is an interruption in myelin sheath which enhances conduction velocity by allowing saltatory conduction

A

Node of ranker

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

Membranes and therefore myelin are made of and

A

Phospholipids and protein

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

Cluster of cell bodies in CNS

A

Nuclei

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

Cluster of cell bodies in PNS

A

Ganglia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What de nisei bodies responsible for?

A

Synthesis of proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

outer membrane of axon

A

Axolemna

27
Q

Function of Schwann cells

A

. Allow neurons to form multiple synapses

28
Q

How do ions move in and out of cells?

A

Protein channels or pumps

29
Q

What is an ion channel?

A

Protein that allows ions to diffuse through membrane

30
Q

What factors determine in which direction ions will move through an open channel?

A

Ion concentration and charge

31
Q

What two factors contribute to the existence of a resting membrane potential?

A

Diffusion and pumping of Na and k ions

32
Q

Where would you find the ion channels on ligand gated? ‘

A

Soma and dendrites

33
Q

Where on Na gated channels would you and?

A

Axon

34
Q

Small positive change in RMP but not great enough to result in AP

A

EPSP

35
Q

Post synaptic membrane had small regions of hyperpolarization, these local occurrences of hyperpolarization would be called _

A

IPSP

36
Q

Result of calcium influx

A

Neurotic. Released into synaptic deft via exocytesis

37
Q

Synaptic vesicles

A

Store and transport neurot

38
Q

Ventral hom

A

Grey matter, contains call bodies of lower motor neurons

39
Q

Dorsal horn

A

Gray matter, contains sensory

40
Q

Lateral horn

A

Regulate autonomic nervous system

41
Q

Difference between gray horns and white columns is

A

Gray horns an composed of gray matter

42
Q

Central canal is lived by _cells

A

Ependymal

43
Q

Sub arachnoid space contalhs

A

CSF

44
Q

White columns carry impulses along pathways called ?

A

Tracts

45
Q

Info carried along tracts is either

A

Sensory ur motor

46
Q

Olgedendroohtes found in?

A

White matter or columns

47
Q

A lumbar puncture would remove fluid from what space

A

Subarachnoid space

48
Q

What produces CSF?

A

Chorale plexus, produced through active ion, transport, which results in secretion of sodium and chloride Lons

49
Q

Composition of CSF

A

Glucose, proteins, lipids, electrolytes

50
Q

What structure ‘absorbs’ the CSF back into circulatory system?

A

Arachhold granulations carachnold vile)

51
Q

Hydrocephalus

A

CSF is produced but does not drain efficiently

52
Q

Lumbar puncture

A

Allow samples of CSF to diagnose

53
Q

Basal nuclei

A

Gray matter w/in cerebrum; caudate, putanan, globus pallidus

54
Q

Function of basal nuclei

A

Moderate movement; determine actions based on intentions and personality

55
Q

Insult

A

Self awareness and sensations, behavior and cravings

56
Q

① depolarization (rising phase)

A

Rising phase, membrane potential rapidly becomes more + due to opening of voltage gated Na, allowing Na into the cell

57
Q

② depolarization (failing phase)

A

Membrane potential returns to resting state due to closing of sodium channels and opening of potassium channels, allowing K to flow out of the cell

58
Q

Threshold potential

A

Certain level of depolarization must be reached threshold potential to trigger an action potential

59
Q

Refectory period

A

After action potential, brief period where neuron cannot fire another action potential, ensures unidirectional signal propagation

60
Q

Hyperpolarization

A

Membrane potential becomes more negative, opposite of depolarization. Makes it more difficult to move membrane potential to action potential threshold,
Inhibiting action potentials

61
Q

Resting membrane potential

A

Electrical potential difference across cell’s plasma membrane when the cell is at rest

62
Q

Thalamus

A

Receives and directs sensory signals from body to appropriate areas of cerebral cortex, play a role in consciousness, sleep, and motorfunc.

63
Q

Hypothalamus

A

Controls vital bodily functions like temp., hunger, thirst, blood pressure, primary link between nervous and endocrine system

64
Q

Epithalamus

A

Contains pineal gland, which produces melatonin

Anatomy And Physiology (7 decks)

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