Brainscape's Knowledge GenomeTM

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


See full index

BDS2.5 Anatomy > Neurones - Cells and Tissues of the nervous system Part 2 > Flashcards

Neurones - Cells and Tissues of the nervous system Part 2 Flashcards

1
Q
A

A = white matter
B = grey matter

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

What is grey matter?

A

neuronal cell bodies

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

What is white matter?

A

myelinated axons

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

Where are cell bodies found?

A

grey matter

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

Why is the white matter white in appearance?

A

myelin is a membrane which is mostly fat, which appears white

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

Name A and B

A

A = grey matter
B = white matter

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

A = neurone
B = nissl bodies (granular appearance)

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

What is the white empty space around the axon?

A

myelin sheath

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

How is white matter arranged?

A

tracts

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

What are tracts?

A

specific bundles of axon carrying specific information to a specific part of the brain or periphery

myelinated axons carrying information

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

Where does the sensory information reach the white matter? (dorsal or ventral root)

A

dorsal root

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

What information does the dorsal root ganglia convey?

A

sensory information

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

Where does the sensory information go?

A

white matter tracts

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

Is the dorsal tract an ascending or descending tract?

A

ascending tract, it carries information up to the spinal cord to the brain where it goes to a specific part of the brain

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

What information is they grey matter conveying?

A

motor information (efferent)

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

What tract is the motor movement of walking pass through?

A

lateral corticospinal tract

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

What is this tract called and what does it convey?

A

lateral corticospinal tract

motor information from brain to limb

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

What nerve goes to the lower limb?

A

sciatic nerve

19
Q

What information does the ventral ganglia convey?

A

motor

20
Q

Where does the motor information synapse?

A

in the grey matter

21
Q

Where does the motor neuronal cell body lie?

A

in the grey matter, they synapse there

22
Q

After synapsing in the grey matter, where does the motor signal (walking) continue?

A

the ventral root, through the sacral plexus to the sciatic nerve and goes and supplies muscles of lower limb

23
Q

What information do descending tracts convey?

A

motor information

24
Q

What is the difference between the dorsal and ventral root?

A

dorsal = sensory

ventral = motor

25
Q

Name A and B

A

A = dorsal

B = ventral

26
Q

What type of neurone will the ventral root have?

A

multipolar neurone

27
Q

Where is the cell body of a sensory neurone?

A

in the ventral hall of the spinal cord

28
Q

sensory neurone

A
29
Q

Name A and B

A

A = grey matter
B = white matter

30
Q

Why is grey matter grey?

A

high proportion of non-myelinated cell bodies

31
Q

What passes through the white matter?

A

fibre tracts

32
Q

What is the role of white matter tracts?

A

connect cerebral hemispheres

connect the brain with lower centres

of periphery

33
Q

What is a collection of grey matter inside the cerebral hemisphere?

A

nucleui/nucleus

34
Q

What type of neuron are sensory neurons?

A

pseudounipolar

35
Q

What is the name given to a collection of neuronal cell bodies outside of the CNS?

A

ganglion

36
Q

Where does the pseudouniplar nerve synapse?

A

spinal cord

37
Q

What is the name given to fibre pathways and is it grey or white?

A

white matter up

grey matter down

38
Q

What is the collection of white matter in the spinal cord called?

A

tract

39
Q

What do you call the collection of cell bodies inside the CNS? (4)

A

nucleus

40
Q

What do you call the collection of cell bodies inside the spinal cord?

A

central grey matter of the spinal cord

41
Q

What matter is the AP passing through and what matter does it eventually reach?

A

through white matter tract in the brain

reaching grey matter on the periphery of the brain

42
Q

What type of neurone will relay the signal here?

A

multipolar neurone

43
Q

Does a motor signal pass through the ventral or dorsal horn of the spinal cord?

A

ventral horn and to the muscle

BDS2.5 Anatomy (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions