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(1) MOINA > Upper Extremity Muscles: Innervation > Flashcards

Upper Extremity Muscles: Innervation Flashcards

1
Q

Which nerve innervates the Serratus Anterior?

A. axillary nerve
B. dorsal scapular nerve
C. long thoracic nerve
D. thoracodorsal nerve
E. spinal part of accessory nerve (motor)
and C3 and 4 (sensory)

A

C. long thoracic nerve

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2
Q

Which nerve innervates the Rhomboids

A. axillary nerve
B. dorsal scapular nerve
C. long thoracic nerve
D. thoracodorsal nerve
E. spinal part of accessory nerve (motor)
and C3 and 4 (sensory)

A

B. dorsal scapular nerve

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3
Q

Which nerve innervates the Trapezius

A. axillary nerve
B. dorsal scapular nerve
C. long thoracic nerve
D. thoracodorsal nerve
E. spinal part of accessory nerve (motor)
and C3 and 4 (sensory)

A

E. spinal part of accessory nerve (motor)
and C3 and 4 (sensory)

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4
Q

Determine the innervation of the following muscles.

  1. Triceps brachii
  2. Coracobrachialis
  3. Biceps brachii
  4. Teres minor
  5. Deltoid

A. radial nerve
B. musculocutaneous nerve
C. axillary nerve

A
  1. A
  2. B
  3. B
  4. C
  5. C
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5
Q

Determine the innervation of the following muscles.

  1. Latissimus dorsi
  2. Pectoralis major
  3. Infraspinatus

A. thoracodorsal nerve
B. suprascapular nerve
C. medial and lateral pectoral nerves
from brachial plexus

A
  1. A
  2. C
  3. B
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6
Q

TRUE OR FALSE: Levator Scapulae is supplied by C3 and 4 and dorsal scapular nerve.

A

True

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7
Q

The following muscles are paired with its corresponding nerve innervation, EXCEPT:

A. Subscapularis - upper and lower subscapular nerves
B. Rhomboid Minor - dorsal scapular nerve
C. Brachialis - Musculocutaneous nerve
D. Pectoralis minor - lateral pectoral nerve from brachial
plexus
E. Subclavius - nerve to subclavius from upper trunk
of brachial plexus

A

D. Pectoralis minor - lateral pectoral nerve from brachial
plexus

NOTE: it is supplied by the medial pectoral nerve from brachial plexus

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8
Q

Rhomboid Major is supplied by the _____.

A

dorsal scapular nerve

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9
Q

Supraspinatus is innervated by the _____.

A

suprascapular nerve

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10
Q

TRUE OR FALSE: Teres major is supplied by the upper scapular nerve.

A

False.

It is supplied by the lower scapular nerve

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11
Q

Subclavius muscle is innervated by the nerve to (1)_____ from (2)_____ trunk of brachial plexus

A
  1. subclavius
  2. upper
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12
Q

Match the following muscle to its innervation.

  1. Flexor carpi ulnaris
  2. Pronator teres
  3. Flexor carpi radialis
  4. Anconeus
  5. Flexor digitorum superficialis

A. Median Nerve
B. Ulnar Nerve
C. Radial Nerve

A
  1. B
  2. A
  3. A
  4. C
  5. A
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13
Q

Match the following muscle to its innervation.

  1. Extensor indicis
  2. Pronator quadratus
  3. Dorsal interossei
  4. Abductor pollicis longus
  5. Flexor pollicis longus

A. Anterior interosseous branch of median nerve
B. Deep branch of radial nerve
C. Deep branch of ulnar nerve

A
  1. B
  2. A
  3. C
  4. B
  5. A
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14
Q

Which of the following nerves innervate Extensor carpi radialis brevis?

A. Median Nerve
B. Ulnar Nerve
C. Radial nerve
D. Deep branch of radial nerve
E. Deep branch of ulnar nerve

A

D. Deep branch of radial nerve

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15
Q

Which of the following nerves innervate Palmaris longus?

A. Median Nerve
B. Ulnar Nerve
C. Radial nerve
D. Deep branch of radial nerve
E. Deep branch of ulnar nerve

A

A. Median Nerve

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16
Q

Which of the following nerves innervate Brachioradialis?

A. Median Nerve
B. Ulnar Nerve
C. Radial nerve
D. Deep branch of radial nerve
E. Deep branch of ulnar nerve

A

C. Radial nerve

17
Q

Flexor digitorum profundus is innervated by 2 nerves. Which nerves are they?

A

Ulnar (medial half) and median (lateral half)
nerves

18
Q

TRUE OR FALSE: Extensor carpi radialis longus is innervated by the deep branch of radial nerve.

A

False.

The radial nerve innervates this.

19
Q

The following is innervated by the deep branch of radial nerve, EXCEPT:

A. Extensor digitorum
B. Extensor digiti minimi
C. Extensor carpi ulnaris
D. Supinator
E. Anconeus

A

E. Anconeus

20
Q

TRUE OR FALSE: Both Extensor pollicis brevis and Extensor pollicis longus is supplied by the deep branch of radial nerve.

A

True

21
Q

Palmaris Brevis is innervated by the (1)____ branch of the (2)____ nerve

A
  1. superficial
  2. ulnar
22
Q

First and second lumbrical is innervated by the (1)______, while the third and fourth is supplied by the (2)_____.

A
  1. median nerve
  2. deep branch of ulnar nerve
23
Q

Which of the following nerves innervate Palmar interossei?

A. Median Nerve
B. Ulnar Nerve
C. Radial nerve
D. Deep branch of radial nerve
E. Deep branch of ulnar nerve

A

E. Deep branch of ulnar nerve

24
Q

The following is innervated by the median nerve, EXCEPT?

A. Abductor pollicis brevis
B. Flexor pollicis brevis
C. Opponens pollicis
D. Adductor pollicis
E. None

A

D. Adductor pollicis

25
Q

The following is innervated by the deep branch of ulnar nerve, EXCEPT?

A. Abductor digiti minimi
B. Flexor digiti minimi
C. Opponens digiti minimi
D. Extensor digiti minimi
E. None

A

D. Extensor digiti minimi

(1) MOINA (18 decks)

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