Brainscape's Knowledge GenomeTM

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


See full index

FD BLOCK > 3. Histology of the NS > Flashcards

3. Histology of the NS Flashcards

1
Q

Central nervous system (CNS)

A

brain and spinal cord

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

Peripheral nervous system (PNS)

A

everything outside the CNS

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

Somatic nervous system

A

voluntary functions

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

Autonomic nervous system

A

involuntary functions

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

Sympathetic system

A

Fight or flight

Increase heart rate and blood flow

Diverts blood to skeletal muscle

Mobilisation of glycogen and fat

Neurotransmitter is noradrenalin

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

Parasympathetic system

A

Conservation and restoration of energy

Decrease heart rate and blood flow

Digestion and absorption of nutrients

Excretion of waste

Neurotransmitter is acetylcholine (Ach)

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

Cell body

A

large central nucleus large aggregations of rER called Nissl substance

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

Dendrites

A

Highly branched processes

End in sensory receptors

Sites of info input into the cell

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

Axons

A

Single, long processes

End in small swellings called terminal boutons

Site of info output

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

Bipolar neuron

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

Unipolar neuron

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

Multipolar neuron

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

Myelin

A

insulation

speeds up conduction

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

What is myelin called in the PNS

A

Schwann cells

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

What is myelin called in the CNS

A

Oligodendrocytes

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

white matter of the brain

A

myelinated

17
Q

grey matter of the brain

A

non-myelinated

18
Q

Nodes of Ranvier

A

gaps between Schwann cells

19
Q

NMJ

A

Also called a Motor End Plate

Specialised type of synapse between nerve cells and skeletal muscle

One axon terminates in many end plates

20
Q

Astrocytes

A

structural scaffolding

21
Q

Microglia

A

immune cells (specialised macrophages)

22
Q

Alzheimer’s disease

A

extracellular deposition of a protein called amyloid

senile plaques

aggregations of abnormal neurones

loss of synapses between neurones

23
Q

Myasthenia Gravis

A

autoimmune disease

body makes antibodies to the acetylcholine receptors

muscle weakness, drooping head and eyelids

24
Q

Multiple Sclerosis

A

immune system attacks the myelin of the CNS

loss of coordination, paralysis,

loss of sensation

FD BLOCK (18 decks)

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