Reflexes

Question 1

Deep Tendon Reflex: BRACHIORADIALIS

1) response
2) afferent/efferent
3) integrating center

Answer 1

1) slight forearm flexion
2) radial nerve
3) C6 spinal cord

Question 2

Deep Tendon Reflex: TRICEPS

1) response
2) afferent/efferent
3) integrating center

Answer 2

1) elbow extension
2) radial nerve
3) C7 spinal cord

Question 3

Deep Tendon Reflex: PATELLAR

1) response
2) afferent/efferent
3) integrating center

Answer 3

1) knee extension
2) femoral nerve
3) L2, 3, 4 spinal cord

Question 4

Deep Tendon Reflex: PATELLAR

1) response
2) afferent/efferent
3) integrating center

Answer 4

1) foot plantar flexion
2) tibial nerve
3) S1, 2 spinal cord

Question 5

Westphal sign=

Answer 5

-absence of any DTR (especially patellar; LMNL)

Question 6

Jendrassik maneuver=

& aka?

Answer 6

• pt. hooks hands or feet together and pulls on the clenched hands or feet at the moment the reflex is performed
• aka= Reinforcement test

Question 7

Significance of Abnormal Deep Tendon Reflex Response=

Answer 7

-reflex responses are graded subjectively according to a classification scheme based on a scale of 0-5+ called the Wexler Reflex Scale

Question 8

Wexler Reflex Grading Chart:

5+ =

Answer 8

• Highly increased response
• increased possibility disease pathology exists
• sustained clonus

Question 9

Wexker Reflex Grading Chart:

4+ =

Answer 9

• Highly increased response
• increased possibility disease pathology exists
• hyperactive

Question 10

Wexler Reflex Grading Chart:

3+ =

Answer 10

• Slightly increased response

- possibility of disease pathology exists

Question 11

Wexler Reflex Grading Chart:

2+ =

Answer 11

-normal response

Question 12

Wexler Reflex Grading Chart:

1+ =

Answer 12

• Slightly diminished
• lower than normal response
• hypoactive

Question 13

Wexler Reflex Grading Chart:

0 =

Answer 13

-no response

Question 14

Decreased of absent reflex=

Answer 14

• generally indicates a LOWER MOTOR NEURON LESION

- (can include peripheral nerve disease, posterior column involvement, cerebellar disease, hypothyroidism)

Question 15

Increased Reflex=

Answer 15

• generally indicates UPPER MOTOR NEURON LESION

- (can include motor cortex, pyramidal tract lesions, strychnine poisoning, hyperthyroidism)

Question 16

Visceral Reflexes: DIRECT LIGHT

1) response
2) afferent
3) integrating center
4) efferent

Answer 16

1) ipsilateral pupillary constriction when light is shined in the eye
2) optic nerve II (ipsilateral)
3) midbrain
4) oculomotor nerve III (ipsilateral)

Question 17

Visceral Reflexes: INDIRECT LIGHT

1) response
2) afferent
3) integrating center
4) efferent

Answer 17

1) contralateral pupillary constriction when light is shined in the eye
2) optic nerve II (ipsilateral)
3) midbrain
4) oculomotor III (contralateral)

Question 18

Visceral Reflexes: ACCOMMODATION

1) response
2) afferent
3) integrating center
4) efferent

Answer 18

1) convergence of the eyes with pupillary constriction
2) optic nerve II
3) occipital cortex
4) oculomotor nerve III

Question 19

Visceral Reflexes: CAROTID SINUS

1) response
2) afferent
3) integrating center
4) efferent

Answer 19

1) reduction in heart rate when examiner presses the carotid sinus
2) glossopharyngeal nerve IX
3) medulla
4) vagus nerve X

Question 20

Deep Tendon Reflex: BICEPS:

1) response
2) afferent/efferent
3) integrating center

Answer 20

1) elbow flexion
2) musculocutaneous nerve
3) C5 spinal cord