Nervous System Flashcards by Sheila Decker

Q

Central nervous system is made up of…

A

Spinal cord

Brain

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Q

Neurons are made up of…

A

Nucleus
Cell body
Dendrites
Axon

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Q

Receptors

A

Thermo
Mechano
Noci (pain)

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Q

Axon consists of

A

Schwan cell
Myelin Sheath
Node of Raniver

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Q

Endoneurium

A

Contains myelin sheath

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Q

Fascicle

A

Bundle of axons

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Q

Perineurim

A

Thick, fibrous, stiff; encloses fascicle

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Q

Epineurium

A

Loose connective tissues, protects nerve; support, cushion, provides blood supply to nerves

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Q

Afferent signals

A

Sensory neurons

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Q

Efferent signals

A

Muscular control

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Q

Sypathetic

A

“Fight or flight”

Sypathetic ganglion

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Q

Parasympathetic

A

“Rest and relax”

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Q

Autonomic

A

Organ functions

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Q

Somatic

A

Sensory information

Controlling muscles

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Q

Brachial plexus

A

roots
trunks
divisions
cords
branches

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Q

Axillary nerve

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A

Wraps around sugical neck of humerus

Q

Ulnar nerve

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A

Cubital tunnel

Tunnel of guyon

Q

Radial nerve is responsible for which motions

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A

Extension, supination

Q

Median nerve

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A

intecubidal space
flexion of wrist
travels through carpel tunnel

Q

Peripheral Nervous System is made up of…

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A

Sensory organs
Nerves
Effector organs