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Sum 2014 - Anat Exam 1 > Exam 1 - Arm > Flashcards

Exam 1 - Arm Flashcards

1
Q

What muscles do the Musculocutaneous nerve innervate?

A

Coracobrachialis, Biceps brachii and Brachialis.

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2
Q

What muscles do the Median nerve innervate?

A

Pronator teres, Flexor carpi radialis, Palmaris longus, Flexor pollicis longus, Flexor digitorum superficialis, Pronator quadratus, Flexor digitorum profundus (lateral 1/2 to digits 2-3), Thenar muscles and Lumbricals to digits 2-3

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3
Q

What nerve innervates the anterior compartment of the forearm

A

Median nerve and Ulnar nerve

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4
Q

What nerve innervates the Posterior compartment of arm?

A

Radial nerve

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5
Q

What nerve innervates the Posterior compartment of forearm?

A

Radial nerve

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6
Q

What muscles do the Radial nerve innervate?

A

Triceps brachii (long, lateral and short head), Brachioradialis, Extensor carpi radialis longus, Extensor carpi radialis brevis, Anconeus, Supinator, Posterior interosseous, Abductor pollicis longus, Extensor carpi ulnaris, Extensor pollicis brevis, Extensor digiti minimi, Extensor pollicis longus, Extensor indicis, Extensor digitorum

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7
Q

What muscles do the Ulnar nerve innervate?

A

Flexor carpi ulnaris and Flexor digitorum profundus (medial 1/2 to digits 4,5), Palmar interossei, Adductor pollicis, Palmaris brevis, Hypothenar muscles, Lumbricals to digits 4,5, and Dorsal interossei

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8
Q

What type of muscles make up the Anterior compartment of the arm?

A

Flexors

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9
Q

What type of muscles make up the Posterior compartment of the arm?

A

Extensors

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10
Q

What muscles are in the posterior compartment of arm?

A

Triceps brachii and Aconius

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11
Q

What muscles are in the anterior compartment of arm?

A

Biceps brachii, Brachioradialis and Coracobrachialis.

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12
Q

What are the origins of Biceps brachii?

A

Short head - tip of the coracoid process of Scapula
Long head - supraglenoid tubercle of the Scapula
“You walk shorter to a street corner. You ride longer on a superhighway.”:
· Short head originates from coracoid process.
· Long head originates from the supraglenoid cavity.

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13
Q

What are the insertions of Biceps brachii?

A

Tuberosity of the Radius

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14
Q

What are the functions of Biceps brachii?

A

Flexes the forearm, flexes arm (long head) and supinates

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15
Q

What innervates Biceps brachii?

A

Musculocutaneous nerve

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16
Q

What supplies blood to Biceps brachii?

A

Brachial artery

17
Q

What are the origins of Coracobrachialis?

A

Coracoid process of Scapula

18
Q

What are the insertions of Coracobrachialis?

A

Medial side of Humerus at mid-shaft

19
Q

What are the functions of Coracobrachialis?

A

Flexes and adducts arm

20
Q

What innervates Coracobrachialis?

A

Musculocutaneous nerve

21
Q

What supplies blood to Coracobrachialis?

A

Brachial artery

22
Q

What are the origins of Brachialis?

A

Anterior surface of the lower 1/2 of the Humerus

23
Q

What are the insertions of Brachialis?

A

Coronoid process of the Ulna

24
Q

What are the functions of Brachialis?

A

Flexes the forearm

25
Q

What innervates the Brachialis?

A

Musculocutaneous nerve

26
Q

What supplies blood to Brachialis?

A

Brachial artery and Radial Recurrent artery

27
Q

What are the origins or Anconeus?

A

Lateral epicondyle of Humerus

28
Q

What are the insertions of Anconeus?

A

Lateral side of the Olecranon and the Upper 1/4 of the UIna

29
Q

What are the functions of Anconeus?

A

Extends the forearm

30
Q

What innervates Anconeus?

A

Radial nerve

31
Q

What supplies blood to Anconeus?

A

Interosseous Recurrent artery

32
Q

What are the origins of Triceps brachii?

A

Long head - infraglenoid tubercle of the Scapula
Lateral head - Posterolateral humerus
Medial head - Posteromedial surface of the inferior 1/2 of Humerus

33
Q

What are the insertions of Triceps brachii?

A

Olecranon process of the UIna

34
Q

What are the functions of Triceps brachii?

A

Extends the forearm; the long head extends and adducts arm

35
Q

What innervates Triceps brachii?

A

Radial nerve

36
Q

What supplies blood to Triceps brachii?

A

Deep brachial (profunda brachii) artery

37
Q

What is the general path of arteries in the arm?

A

Brachial artery and these branches - Profunda brachii artery (middle and radial collateral branches), Superior Ulnar Collateral Artery, Inferior Ulnar Collateral Artery

38
Q

What are the contents of the Cubital Fossa?

A

Median nerve, Brachial Artery, Tendon of Biceps, Radial nerve.
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Sum 2014 - Anat Exam 1 (14 decks)

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