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A&P > Chapter 15 Neural Intergration > Flashcards

Chapter 15 Neural Intergration Flashcards

1
Q

the proprioceptor that can detect muscle stretch

A

muscle spindle

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2
Q

the proprioceptor that detects muscle contraction

A

Golgi tendon organ

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3
Q

the general term for knowing where body parts are at a given time

A

proprioception

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4
Q

part of the brain where proprioceptive impulses end to facilitate equilibrium

A

cerebellum

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5
Q

touch receptor located in the epidermis

A

Merkel (tactile disc)

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6
Q

touch receptor found in the dermis

A

Meissner (tactile corpuscle)

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7
Q

touch receptor found deep in the dermis

A

Pacinian (lamellated)

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8
Q

general name for a receptor that sends an action potential when it is deformed

A

mechanoreceptor

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9
Q

touch receptor located around a hair follicle

A

hair root plexus

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10
Q

name a chemoreceptor found in the mouth

A

taste bud

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11
Q

term used to describe the uneven distribution of receptors in the skin

A

punctate distribution

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12
Q

term used to describe the phenomenon where receptors stop sending action potentials when continuously stimulated

A

adaptation

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13
Q

another term for a pain receptor

A

nociceptor

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14
Q

bundle of axons in the CNS

A

tract

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15
Q

bundle of cell bodies in the PNS

A

ganglion

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16
Q

bundle of cell bodies in the CNS

A

nucleus

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17
Q

term for a bundle of axons in the PNS

A

nerve

18
Q

the color of a nucleus in the brain

A

gray

19
Q

a pathway from the receptor to the postcentral gyrus must be this type of pathway

A

sensory pathway

20
Q

the general number of neurons in a sensory pathway

A

3

21
Q

location of the first-order neuron (soma) in a sensory pathway

A

dorsal root ganglion

22
Q

shape of the first-order neuron (soma) in a sensory pathway

A

unipolar

23
Q

modalities carried by the lateral spinothalamic tract

A

pain & temperature

24
Q

modalities carried by the anterior spinothalamic tract

A

crude touch & pressure

25
Q

which of the three neurons in the spinothalamic pathway crosses over to the opposite side

A

second-order neuron

26
Q

place where the spinothalamic tract ends

A

thalamus

27
Q

tract that carries impulses that allow you to localize the exact point of touch

A

posterior columns

28
Q

location of the second-order neuron (soma) in the spinothalamic pathway

A

posterior gray horn

29
Q

tract that carries impulses for vibration and proprioception

A

posterior columns

30
Q

location of the third -order neuron (soma) in the spinothalamic pathway

A

thalamus

31
Q

location of the second-order neuron (soma) in the posterior columns pathway

A

medulla oblongata

32
Q

triangular-shaped cell in the precentral gyrus

A

pyramidal cell

33
Q

another name for the corticospinal pathway (from the precentral gyrus)

A

pyramidal cell (direct)

34
Q

number of neurons in the corticospinal pathway

A

2

35
Q

location of the lower motor neuron soma in the pyramidal pathway

A

anterior gray horn

36
Q

location of the upper motor neuron soma in the pyramidal pathway

A

precentral gyrus

37
Q

place where 85% of the axons cross over to the opposite side in the pyramidal pathway

A

decussation of pyramids (medulla)

38
Q

parts of the body that have a large representation on the motor homunculus of the precentral gyrus

A

hand face & tongue

39
Q

motor centers of the brain that control muscle tone are part of this system in the brain

A

extrapyramidal (medial and lateral pathways)

40
Q

type of paralysis seen when the lower motor neuron of the pyramidal pathway is damaged

A

flaccid

41
Q

parts of the cerebrum (part of the extrapyramidal system) that control patterns of movement

A

basal nuclei

42
Q

phenomenon where pain is felt in a different part of the body than where the pain originated

A

referred pain

A&P (16 decks)

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