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Neuroscience > Final > Flashcards

Final Flashcards

1
Q

Efferent Sympathetic

A

Thoracolumbar outflow

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2
Q

Efferent Parasympathetic

A

Craniosacral outflow

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3
Q

Norepinephrine

A

Causes vasoconstriction

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4
Q

Somatic Nervous System

A

Voluntary control - skeletal muscles

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5
Q

Active Stiffness

A

neural signals, UMN firing, relfexes

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6
Q

Intrinsic Stiffness

A

produced by weak crossbridge attachements

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7
Q

Passive stiffness

A

resistance provided by titin (rubber band like)

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8
Q

Gamma Motor Neurons

A

Project to intrafusal muscle fibers in muscle spindle

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9
Q

Alpha Motor Neurons

A

project to extrafusal skeletal muscle

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10
Q

Henneman’s Size Principle

A

Order of recruitment = small to large alpha motor neurons

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11
Q

Alpha-Gamma Coactivation

A

Maintains stretch on central region of muscle spindle intrafusal fibers when muscle actively contracts due to collaterals that project to gamma motor neurons

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12
Q

Large Diameter Axons

A

Info from specialized receptors in muscles, tendons, and joints. Fast.

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13
Q

Medium Diameter Axons

A

Info from joint capsule, muscle spindles, cutaneous touch, stretch, and pressure receptors.

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14
Q

Small Diameter Axons

A

Info from crude touch, nociceptive, and temperature receptors

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15
Q

Spinothalamic Pain

A

fast pain from acute injury

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16
Q

Spinolimbic Pain

A

slow pain - throbbing, dull ache after initial injury. Not localized

17
Q

Anterolateral Columns

A

Discrim pain, temp, and coarse touch.

Spinothalamic, Spinolimbic, Spinoreticular, Spinomesencephalic

18
Q

Posterior Spinocerebellar Tract

A

High fidelity from legs and lower body, ipsilatral to cortex

19
Q

Cuneocerebellar Pathway

A

High fidelity from UE and upper body

20
Q

Anterior Spinocerebellar Tract

A

Internal Feedback from thoracolumbar spinal cord. Ascend contralaterally

21
Q

Rostrospinocerebellar Tract

A

Internal feedback from cervical spinal cord. Ascend ipsilaterally.

22
Q

IPSP

A

Cl- and K+

23
Q

EPSP

A

Na+ or Ca++

Neuroscience (14 decks)

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