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Clinical Anatomy 1 Maddy > 16 Peripheral n of the brachial plexus > Flashcards

16 Peripheral n of the brachial plexus Flashcards

1
Q

What are the spinal cord segments of the Dorsal Scapular nerve?

A

C4 - C5 Roots

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2
Q

What are the spinal cord segments of the Long Thoracic nerve?

A

C5 - C7 Roots

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3
Q

What are the functions of the Dorsal Scapular nerve?

A

postganglionic sympathetic and motor (NOT SENSORY) to the levator scapulae and rhomboid muscles

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4
Q

What are the functions of the Long Thoracic nerve?

A

Sensory, postganglionic sympathetic & motor innervation to the serratus anterior muscle

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5
Q

Which nerves arise from the roots of the brachial plexus?

A

Dorsal scapular and Long Thoracic nerves

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6
Q

Which nerves arise from the trunks of the brachial plexus?

A

Suprascapular and Subclavian nerves

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7
Q

What are the spinal cord segments of the Suprascapular nerve?

A

C4 - C6

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8
Q

What are the spinal cord segments of the Subclavian nerve?

A

C5 - C6

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9
Q

What are the functions of the Suprascapular nerve?

A

sensory, postganglionic sympathetic & motor innervation of the supraspinatus and infraspinatus muscles

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10
Q

What are the functions of the Subclavian nerve?

A

sensory, postganglionic sympathetic & motor innervation of the subclavius muscle

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11
Q

Which nerves arise from the lateral cord of the brachial plexus?

A

Lateral pectoral nerve (C5-7), Musculocutaneous nerve (C5-7), and the lateral root of the Median nerve (C5-7)

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12
Q

What are the functions and spinal cord segments of the Lateral Pectoral nerve?

A

(C5-7)

Sensory, postganglionic sympathetic & motor innervation of the pectoralis major and minor muscles

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13
Q

What are the functions and spinal cord segments of the Musculocutaneous nerve?

A

(C5-7)

Sensory, postganglionic sympathetic & motor innervation of the biceps brachii, coracobrachialis, and brachialis muscles

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14
Q

What are the functions and spinal cord segments of the Muscular branches in the forearm of the Lateral root of the median nerve?

A

Sensory, postganglionic sympathetic & motor innervation of the flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and pronator teres muscles

C5-C7

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15
Q

What are the functions of the Anterior interosseous nerve of the Lateral median nerve?

A

Sensory, postganglionic sympathetic & motor innervation of the flexor pollicis longus, flexor digitorum profundus & pronator quadratus muscles

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16
Q

What are the functions of the Palmar Cutaneous Branch of the Lateral root of the median nerve?

A

Sensory, postganglionic sympathetic (NOT MOTOR) innervation of the skin overlying the radial aspect of the palm of the hand

17
Q

What are the functions of the Muscular branches in the hand of the Lateral root of the median nerve?

A

Sensory, postganglionic sympathetic & motor innervation of the lateral two lumbrical muscles

18
Q

What are the functions and spinal cord segments of the Recurrent branch of the lateral root of the median nerve?

A

C6-T1
Sensory, postganglionic sympathetic & motor innervation of the flexor pollicis brevis, abductor pollicis brevis, and opponens pollicis muscles

19
Q

What are the functions of the Common & proper palmar digital nerves of the Lateral root of the median nerve?

A

Sensory, postganglionic sympathetic (NOT MOTOR) innervation of the skin overlying digits 1-4

20
Q

Which nerves arise from the medial cord of the brachial plexus?

A

Medial pectoral nerve (C8-T1), Medial cutaneous nerves of the arm & forearm (C8-T1), the medial root of the median nerve (C8-T1), and Ulnar nerve (C7-T1)

21
Q

Which nerves arise from the posterior cord of the brachial plexus?

A

Upper subscapular nerve (C5-6), Thoracodorsal nerve (C6-8), Lower subscapular nerve (C5-6), Axillary nerve (C5-6), and the Radial nerve (C5-T1)

22
Q

What are the functions and innervations of the medial pectoral nerve?

A

(C8-T1)

sensory, postganglionic sympathetic, and motor innervation of the pectoralis major & minor

23
Q

What are the functions and innervations of the medial cutaneous nerves of the arm & forearm?

A

(C8-T1)
sensory and postganglionic sympathetic (NOT MOTOR) innervation of the skin overlying the medial aspect of the arm & forearm

24
Q

What are the functions and innervations of the medial root of the median nerve?

A

(C8-T1)
Muscular branches in the forearm- Sensory, postganglionic sympathetic & motor innervation of the flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and pronator teres muscles

Anterior interosseous nerve-Sensory, postganglionic sympathetic & motor innervation of the flexor pollicis longus, flexor digitorum profundus & pronator quadratus muscles

Palmar Cutaneous branch-Sensory, postganglionic sympathetic (NOT MOTOR) innervation of the skin overlying the radial aspect of the palm of the hand

Muscular branches in the hand-Sensory, postganglionic sympathetic & motor innervation of the lateral two lumbrical muscles

Recurrent branch of the median nerve-Sensory, postganglionic sympathetic & motor innervation of the flexor pollicis brevis, abductor pollicis brevis, and opponens pollicis muscles (C6-T1)

Common&proper palmar digital nerves-Sensory and postganglionic sympathetic innervation of the skin overlying digits 1-4

25
Q

What are the functions and innervations of the ulnar nerve?

A

(C7-T1)
Muscular branches in the forearm-sensory, postganglionic sympathetic & motor innervation of the flexor carpi ulnaris & flexor digitorum profundus muscles

Palmar cutaneous branch-sensory and postganglionic sympathetic innervation of the skin overlying the ulnar side of the palm (Common palmar supplies digits 4&5, proper palmar digital nerves)

Dorsal cutaneous branch-sensory, postganglionic sympathetic innervation of the skin overlying the dorsal surface of digits 4&5

Deep terminal branch-sensory, postganglionic sympathetic & motor innervation of the abductor digiti minimi, flexor digiti minimi, and flexor pollicis brevis, opponens digiti minimi, palmar interossi, dorasal interosseei, medial two lumbricals & adductor pollicis muscles

26
Q

What are the functions and innervations of the radial nerve?

A

(C5-T1)

Muscular branches in the arm-Sensory, postganglionic sympathetic & motor innervation of the triceps brachii & brachialis muscles

Muscular branches (deep & posterior inetosseous nn) in the forearm- Sensory, postganglionic sympathetic & motor innervation of the aconeus, brachioradialis, supinator, extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum, extensor digiti minimi, extensor indicis, extensor pollicis brevis, extensor pollicis longus & abductor pollicis longus muscles

Posterior cutaneous nerve of the forearm- Sensory and postganglionic sympathetic innervation of the skin overlying the posterior aspect of the forearm

Superficial terminal branch-Sensory and postganglionic sympathetic innervation of the skin overlying the radial side of the dorsum of the hand

27
Q

What are the functions and innervations of the upper subscapular nerve?

A

(C5-6)

Sensory, postganglionic sympathetic & motor innervation of the subscapularis muscle

28
Q

What are the functions and innervations thoracodorsal nerve?

A

(C6-C8)

Sensory, postganglionic sympathetic & motor innervation of the latissimus dorsi muscle

29
Q

What are the functions and innervations of the lower subscapular nerve?

A

(C5-6)

Sensory, postganglionic sympathetic & motor innervation of the subscapularis & teres major muscles

30
Q

What are the functions and innervations axillary nerve?

A

(C5-6)
Muscular branches in the arm- Sensory, postganglionic sympathetic & motor innervation of the deltoid & teres minor muscles

Superior lateral cutaneous nerve of the arm-Sensory and postganglionic sympathetic innervation of the skin overlying the superior lateral aspect of the arm

Clinical Anatomy 1 Maddy (8 decks)

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