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A&P 2 > Reflex Activity > Flashcards

Reflex Activity Flashcards

1
Q

What does a reflex tell an examiner?

A

A clue to where the damage may have occurred along the conduction pathway

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2
Q

Abdominial, cremasteric, plantar, anal reflex are

A

Superficial relfexes

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3
Q

Biceps, triceps, brachioradials, patellar, ankle jerk are

A

Stretch relfexes

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4
Q

Reflexes are

A

A type of control system to keep the body safe from potentially harmful changes internally and externally in environment (maintain homeostasis)

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5
Q

Reflexes occur over highly specific pathways

A

Reflex arcs

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6
Q

Stimulus is picked up or received here (site of stimulus action)

A

Receptor

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7
Q

Transmits afferent impulses to CNS

A

Sensory neuron

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8
Q

CNS

A

Integration center

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9
Q

Conducts efferent impulses to an effector

A

Motor neuron

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10
Q

Muscle fiber or gland that does something to respond motor commabd

A

Effector

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11
Q

4 categories of spinal reflexes

A

Stretch
Withdrawal
Cross extensor
Superficial cord reflexes

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12
Q

Degree of muscle length is conveyed by

A

Muscles spindles

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13
Q

Info on tension in tendons

A

Golgi tendon

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14
Q

Modified skeletal muscle fibers

A

Intrafusal muscle fibers

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15
Q

Typical skeletal muscle fibers

A

Extrafusal

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16
Q

Injury to lower spinal cord and lumbar plexus

A

Cremasteric reflex

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17
Q

Tests integrity of spinal cord and ventral rami

A

Abdominal reflex

18
Q

To test sympathetic

A

Ciliosponal reflex

19
Q

To test parasympathetic

A

Pupillary light reflex

Salivary reflex

20
Q

Reflex that is genetic, not learned

A

Innate reflexes

21
Q

Learned by experience reflexes

A

Acquired reflexes

22
Q

Control the contraction of skeletal muscle fibers

A

Alpha motor neurons

23
Q

Neurons that adjust the stretch sensitivity of the muscle spindle do that the spindle is active even when muscle shortens

A

Gamma motor neurons

24
Q

When both sets of fibers causes tension on the muscle spindles to be maintained as the muscle shortens (sensitivity to stretch is maintained)

A

Alpha-Gamma Coactivation

25
Q

Reflex that involved only 2 neurons

A

Monosynaptic

26
Q

In order for the CNS to coordinate smooth contraction of skeletal muscles, a ads of receptors known as __ are required

A

Proprioceptors

27
Q

Modified skeletal muscle fibers that function as receptors in spinal reflexes

A

Intrafusal

28
Q

Innervation by ___ fibers make sure that muscle spindles stay sensitive to stretch

A

Gamma efferent

29
Q

Type of sensory receptor that causes muse to relax in response to excessive load

A

Golgi tendon organ

30
Q

Flexor or withdrawal reflex

A

Ipsilateral

31
Q

Motor response of a crossed extensor reflex

A

Contra lateral

32
Q

Reflex is a superficial relfex that tests the integrity of the spinal cord at L4-S2

A

Plantar

33
Q

Reflex is a superficial reflex that tests the integrity if the spinal cord at L1-L2

A

Cremasteric

34
Q

Stretch reflex that tests the integrity of the spinal cord at L2-L4

A

Patellar

35
Q

Nerve that carries afferent information when debris strikes the cornea

A

Trigeminal

36
Q

Nerve that carries efferent information causing the eye to blink

A

Facial

37
Q

Pupillary constrictor muscles contract for this reflex

A

Accommodation reflex

38
Q

When testing the plantar reflex, the patient spreads their toes and dorsiflexes their hallux. This indicates damage to

A

Corticospinal

39
Q

When light strikes one pupil and both pupils constrict, this is an indication of a normal ___ reflex

A

Consensual light

40
Q

Withdrawal reflex is ___ synaptic

A

Poly

A&P 2 (14 decks)

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