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Neuroanatomy- Term 2 > Week 2- Microscopic > Flashcards

Week 2- Microscopic Flashcards

1
Q

Name 4 types of sensations

A

Nociception
Temperature
Touch
Postural

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2
Q

Name parts of a neuron

A

Axon
Axon terminal
Dendrites
Cell body
Myelin sheath
Nucleus
Node of ranvier
Schwann cells

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3
Q

What is the role of neurons

A

Signalling

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4
Q

What are neuroglia (glial cells)

A

Suppportive cells (both physically and chemically)
Maintain the environment
Bring nutrients and remove waste from neurons

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5
Q

What is a pseudo unipolar neuron

A

Single neuron that divides further in to 2 branches- T junction - and one to CNS and another to PNS

Found in dorsal root ganglia

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6
Q

Describe bipolar neuron

A

2 distinct structures extending from cell body
One is an axon
Other is dendrites

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7
Q

Describe a multipolar neuron

A

Single axon and many dendrites
Allow integration of a great deal of info from other neurons

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8
Q

Describe Golgi type 1 neuron

A

Long axon
Purkinje cells
Cerebral cortex

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9
Q

Describe Golgi type 2 neuron

A

Short axon
Cerebral cortex
Cerebellar cortex

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10
Q

What are axons often insulated by

A

Glial cells

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11
Q

What is the process of conduction fo ap across axons called

A

Saltatory conduction

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12
Q

What is a glial cells

A

A type of celll that provides physical and chemical suppor to neurons, maintains their environment

Located CNS and PNS

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13
Q

Name the 2 functions of neurotransmitters

A

Excitatory postsynaptic potentials (EPSPs)
Inhibitory postsynaptic potentials (IPSPs)

Have a role in neuronal growth and facilitation or inhibition of subsequent signalling properties of the neuron (can be use of spinal cord stimulation for chronic pain management)

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14
Q

Describe norepinephrine

A

Neurotransmitter most common for control of sympathetic functions
Cardiac and smooth muscle

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15
Q

What is astrocytes and where is it found

A

Glia
Blood brain barrier

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16
Q

What is EPENDYMAL cells and where is it found

A

Glia
Ventricles

17
Q

What is oligodendrocytes cells and where is it found

A

Glia
Myelin production in CNS

18
Q

What is microglia cells and where is it found

A

Removes cell debris
Pathogens that invade CNS |

19
Q

Name neuroglia in PNS

A

Satellite cells-surround nerve cell bodies
Schwann cells- formmyelin

20
Q

Describe white matter

A

CNS myelinated axons

21
Q

Describe gray matter

A

CNS mainly made up of cell bodies

22
Q

Name a muscular skeletal transmitter

A

Acetylcholine

23
Q

Name neuroglia cells in CNS

A

Microglia- immune system
EPENDYMAL- make csf
Astrocytes- BBB
Oligodendrcytes- produce myelin

24
Q

What is the difference between grey and white matter

A

Grey-not myelinated, made of neuron cell bodies
White- myelinated , neuron cell axons

Neuroanatomy- Term 2 (11 decks)

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