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Anatomy > GSA > Flashcards

GSA Flashcards

1
Q

Fibers carry exteroceptive info from receptors in the skin that mediate pain, temp and touch

A

GSA

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2
Q

4 types of somatic sensation

A
  • pain
  • thermal
  • position
  • touch pressure
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3
Q

Act as a transducers transforming a physical stimulus into a nerve impulse

A

Sensory receptors

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4
Q

Process in which a stimulus receptor is specialized and is transformed by the receptor membrane into a generator potential

A

Transduction

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5
Q

Endings for sensing visceral pain and receptors in joints that respond to body position

A

Interoceptive

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6
Q

Also known as medial lemniscal system

A

Dorsal column system

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7
Q

Separates the medial and lateral nuclear masses and bifurcates anteriorly to encompass the anterior group

A

Internal medullary lamina

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8
Q

What theory states that different receptors detect each different quality of sensation

A

Fiber specific theory

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9
Q

Type of muscle afferent fiber that has a annulospinal endings of neuromuscular spindle

A

Ia

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10
Q

It divides the thalamus unequally

A

IntErnal medullary lamina

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11
Q

Enclosed within lateral internal medullary lamina

A

IntRALAMINAR nuclei

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12
Q

Located in the postcentral gyrus also known as brodmann area 3,2,1

A

Primary sensory cortex

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13
Q

Aka anterolateral system

A

Spinothalamic tract

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14
Q

Subserves pain, thermal sensation and crude touch

A

Spinothalamic system

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15
Q

Subserves deep touch, tactile sensation, conscious proprioception, pressure and vibratory sense

A

Dorsal column system

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16
Q

Ability to identify objects

A

Stereognosis

17
Q

Ability to identify figures and numbers drawn through skin

A

Graphesthesia

18
Q

Dorsal root ganglion

A

Neuron 1 (First order neuron

19
Q

Crossing of fibers

A

Neuron 2

20
Q

Pathway for fast sharp pain (subserves pain and thermal sense)

A

Lateral spinothalamic tract

21
Q

VPL of thalamus

A

Neuron 3

22
Q

Secretes substance P for pain sensation

A

Subtancia gelatinosa (Lamina II)

23
Q

Subserves light touch, tickle and sexual sensation pathway

A

Anterior spinothalamic tract

24
Q

Refers to unsteady , awkward and poorly coordinated movement

A

Ataxia

25
Q

Used to detect posterior column ataxia

A

Romberg sign

26
Q

A cerebellar input which is relayed from the body via several pathway

A

Unconscious priprioception

27
Q

Other general sensory ascending tract concerned with the lower limbs

A

Anterior and posterior spinocerebellar tracts

28
Q

Other general sensory ascending pathway that is concerned with fine coordination of individual muscles during posture and movement

A

Dorsal spinocerebellar tract

29
Q

Other general sensory ascending tract responsible for unconscious proprioception

A

Cuneocerebellar tract

30
Q

Fibers from upper 6 thoracic and all

A

Fasciculus cuneatus

Anatomy (11 decks)

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