Nerves, Muscles, and Tests for the Arm Flashcards

1
Q

Cutaneous innervation of the Axillary nerve

A

C5, C6

-Lateral aspect of the shoulder and upper arm

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2
Q

Cutaneous innervation of the Musculocutaneus nerve

A

C5, C6, C7

-Lateral forearm

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3
Q

Cutaneous innervation of the Radial nerve

A

C5, C6, C7, C8, T1

-Posterior compartments of the arm and forearm. Lateral arm

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4
Q

Cutaneous innervation of the Ulnar nerve

A

C8, T1

-Medial part of the 4th and all of the 5th digit down to the medial wrist

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5
Q

Cutaneous innervation of the Median nerve

A

C6, C7, C8, T1

-Lateral palm and digits 1, 2, 3 and lateral 1/2 of 4.

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6
Q

Biceps Reflex segmental innervation

A

C5

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7
Q

Brachioradialis Reflex segmental innervation

A

C6

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8
Q

Triceps Reflex segmental innervation

A

C7

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9
Q

Finger Flexion Reflex segmental innervation

A

C8

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10
Q

C5 Myotomes

A

Supraspinatus, Deltoid, Biceps, Brachioradialis

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11
Q

C6 Myotomes

A

Wrist extenders, biceps, brachioradialis

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12
Q

C7 Myotomes

A

Triceps, Wrist flexion, finger extension

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13
Q

C8 Myotomes

A

Finger flexion

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14
Q

Objectify of the sensory testing protocol

A

Introduce light and sharp touch to the patient

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15
Q

Sensory testing protocol

A
  • Patient closes eyes. Mix in light and sharp touch, patient identifies location and sharp or light touch after each touch
  • Touch with light on right side and compare with left then use sharp in the same manner
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16
Q

T/F When conducting a sensory test, travel through each dermatome and peripheral nerve distribution

A

True

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17
Q

Last component of the sensory testing protocol

A

Test vibration sensation at the wrist, elbow, and shoulder

18
Q

Motor C5

A
  • Supraspinatus
  • Brachioradialis
  • Deltoid
  • Biceps
19
Q

Sensory C5

A

Lateral aspect of the upper arms

20
Q

Reflex C5

A

Biceps Reflex

21
Q

Motor Axillary nerve

A

(C5, C6)

  • Deltoid
  • Teres Minor
22
Q

Sensory Axillary nerve

A

(C5, C6)

Skin covering the inferior part of the deltoid muscle

23
Q

Motor C6

A

Wrist extension muscles

24
Q

Sensory C6

A

Tip of the thumb and lateral forearm

25
Q

Reflex C6

A

Brachioradialis

26
Q

Motor Musculocutaneous nerve

A

(C5, C6, C7)

-All muscles in the anterior compartment of the arm (coracobrachialis, biceps, brachiallis)

27
Q

Sensory Musculocutaneous nerve

A

(C5, C6, C7)

-Skin on the lateral side of the forearm

28
Q

Reflex for Musculocutaneous

A

Biceps reflex

29
Q

Motor C7

A
  • Triceps
  • Wrist flexion muscles
  • Finger extension muscles
30
Q

Sensory C7

A

Tip of the middle finger and median part of the hand and forearm

31
Q

Reflex C7

A

Triceps

32
Q

Motor Radial Nerve

A

(C5, C6, C7, C8)

-All muscles in the posterior compartment of the arm and forearm (extension muscles)

33
Q

Sensory Radial Nerve

A

(C5, C6, C7, C8)
-Skin on the posterior aspect of the arm and forearm, lower lateral surface of the arm, and dorsal lateral surface of the hand

34
Q

Reflex Radial Nerve

A
  • Brachioradialis

- Triceps

35
Q

Motor C8

A

Finger Flexion muscles

36
Q

Sensory C8

A

Tip of the 5th digit and medial aspect of the hand and forearm

37
Q

Reflex C8

A

Finger Flexion

38
Q

Motor Ulnar Nerve

A

(C8, T1)

  • All intrinsic muscles of the hand
  • Flexor carpi ulnaris
  • 1/2 of flexor digitorium profundus
39
Q

Sensory Ulnar Nerve

A

(C8, T1)
-Skin over the palmar surface of the medial 1 and 1/2 digits and associated palm and wrist, and skin over the dorsal surface of the medial one and one half digits.

40
Q

Reflex Ulnar Nerve

A

Finger Flexion

41
Q

Motor for T1

A
  • Finger Abductors

- Finger Adductors

42
Q

Sensory T1

A

Medial aspect of the lower arms