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Anatomy- Back & Extremities > Upper Extremities- Nerves > Flashcards

Upper Extremities- Nerves Flashcards

1
Q

The nerves that interlace between C5-T1 are called _________.

A

Brachial Plexus

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2
Q

Most of the upper limb is innervated by what spinal nerves?

A

C5-T1

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3
Q

The musculocutaneous nerve innervates what?

A

All muscles in the anterior compartment of the arm

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4
Q

The musculocutaneous nerve carries sensory information from what?

A

Lateral forearm

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5
Q

Axillary innervates what?

A

Deltiod
Teres minor

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6
Q

Radial nerve innervates what?

A

All muscles of the posterior compartment of the arm
AND
forearm:
-Superficial radial nerve (sensory)
-Deep radial nerve (motor)
-Posterior interosseous nerve (motor)

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7
Q

Axillary nerve carries sensory information from what?

A

Lateral shoulder

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8
Q

Radial nerve carries sensory information from where?

A

Posterior arm and posterior forearm

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9
Q

Median nerve innervates what?

A

All of the muscles in the forearm and some in the hand

Abductor pollicis brevis
Opponens pollicis
Flexor pollicis brevis
1st and 2nd lumbricals

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10
Q

Ulnar nerve innervates what?

A

1.5 muscles in forearm and nearly all muscles in hand

Flexor carpi ulnaris
1/2 of Flexor digitorum profundus

Deep branch innervates all muscles in had NOT covered by median nerve

Superficial branch carries sensory info. from palmar and dorsal aspects of the 5th digit and ulnar 1/2 of the 4th digit

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11
Q

What branches come from the median nerve?

A

Anterior interosseous nerve
Recurrent branch of the median nerve

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12
Q

What branches from from the ulnar nerve?

A

Deep and superficial

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13
Q

Subscapularis nerve innervates what

A

Subscapularis muscle
Teres major muscle

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14
Q

Thoracodorsal nerve innervates what?

A

Latissimus dorsi muscle

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15
Q

Medial pectoral nerve innervates what?

A

Pectoralis major and minor

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16
Q

Lateral pectoral nerve innervates what?

A

Pectoralis major

17
Q

Dorsal scapular nerve innervates what?

A

Levator scapulae
Rhomboid major and minor

18
Q

Long thoracic nerve innervates what?

A

Serratus anterior muscle

19
Q

Nerve to subclavius innervates what?

A

Subclavius muscle

20
Q

Suprascapular nerve innervates what?

A

Supraspinatus
Infraspinatus

21
Q

What is Erb-Duchenne Palsy?

A

Caused by injury to C5-C6 roots of brachial plexus or to superior trunk

Results in weak/nonfunctional:
Nerve to subclavius
Suprascapular
Axillary
Musculocutaneous nerves

22
Q

What is Klumpke’s paralysis?

A

Claw-hand appearance b/c proximal ulnar nerve damange

Caused by injury to inferior trunk of brachial plexus

Nonfunctional ulnar nerve and sensory loss from the medial cutaneous nerves of the arm and forearm.

Anatomy- Back & Extremities (10 decks)

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