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Yr 2 Anatomy > Neuroanatomy Lecture 1: Cells and Tissues of the Nervous System > Flashcards

Neuroanatomy Lecture 1: Cells and Tissues of the Nervous System Flashcards

1
Q

2 types of efferent control

A

autonomic- sympathetic and parasympathetic

somatic motor- voluntary

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2
Q

what are glial cells

A

Non-excitable supporting cells

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3
Q

what are the gold and purple cells

A

gold = neurons

purple = glial cells

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4
Q

what is the nucleus made of in neuron cell body

A

loose chromatin

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5
Q

name for rough ER in neuron

A

nissel bodies

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6
Q

name for cytoplasm in neuron cell body and axon

A

cell body = perikaryon
axon = axoplasm.

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7
Q

do neurons devide

A

no they’re Amitotic

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8
Q

what type of neuron is this

where is it found

A

multipolar

interneuron
motor neuron

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9
Q

what type of neuron is this

where is it found

A

bipolar

olfactory mucosa
retinal nerve fibres
i.e cranial nerves 1 and 2

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10
Q

what type of neuron is this

where is it found

A

pseudounipolar

sensory neurons

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11
Q

Where does the cell body of the multipolar neuron lie?

A

in CNS- brain to spine

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12
Q

whats the body of pseudounipolar nerves

A

spinal root ganglion

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13
Q

what forms the myelin sheath in PNS and CNS

A

◼Schwann cells in PNS

◼Oligodendrocytes in CNS

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14
Q

name for gaps in myelin sheath

A

nodes of ranvier

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15
Q

what is white and grey matter made of

A

white = myelinated axons- myelin is fatty so appears white
grey = neuronal cell bodies

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16
Q

whats the blue and green areas

A

blue = grey matter
green = white matter

17
Q

whats the black and yellow bits

A

black = neuron cell bodies

yellow = axons

18
Q

what are the purple and yellow impulses going to

A

purple = the back
yellow = front of body

19
Q

what are thr red, orange and blue bits

A

red = ventral root- so motor

orange = ventral rami- where motor goes to front of body

blue = dorsal rami- where motor goes to back of body

20
Q

name for a collection of neuronal cell bodies inside and outside CNS

A

inside = nuclei in brain or grey matter in spine
outside = ganglion

21
Q

sensory vs motor synapse postition

A

sensory synapses near brain
motor synapses near muscle

22
Q

in the PNS what do satellite cells do

A

surround neuron cell bodies

23
Q

in CNS wat do ependymal cells do

A

line ventricals and central canal of spinal cord

24
Q

in CNS what to astrocytes do x2

A

surround synapses and capillaries using foot processes
- maintain BBB

help in K+ buffering

25
Q

what does phagocytosis and scar tissue formation in CNS

A

microglia- instead of WBCs

26
Q

3 things that maintain the BBB

A
  1. tight junctions in epithelium
  2. thick basal lamina
  3. foot processes of astrocytes
27
Q

what substances can pass more easliy through the BBB X3

what does this mean for drugs

A

lipid, O2, H20

need to be lipid soluble or have suitable vectors

28
Q

what molecules need pumped past BBB x2

A

glucose
amino acids

29
Q

what are the red and purple things

A

red = falx cerebri
purple = tentorium cereBELLI

30
Q

what does the interventricular foramen do

A

connects the lateral and 3rd ventrical

31
Q

name the 3 mininges seen

A

purple = dural
green = arachnoid
pink = pia

32
Q

what space contains CSF

A

subarachnoid

33
Q

what memninge is vascularised

A

pia

34
Q

what does the subdural space contain

A

potential space

traversed by blood vessels penetrating into the CNS

35
Q

where is CSF present

A

ventricals and subarachnoid space

36
Q

where is CSF formed

A

choriod plexus

37
Q

where is CSF absorbed

A

by arachnoid villi into the saggital sinus

38
Q

how does CSF circulate

A

goes through the ventricles into 4th
where it enters into subarachnoid through 3 holes in the roof

Yr 2 Anatomy (26 decks)

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