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Anatomy Lab > Exam 1 - Arm/Forearm > Flashcards

Exam 1 - Arm/Forearm Flashcards

1
Q

Attachment of coracobrachialis

A
  • coracoid process

- Linear roughening on midshaft of humerus on medial side (medial surface of humerus)

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2
Q

Innervation of coracobrachialis

A

Musculocutaneous (C5, C6, C7)

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3
Q

Action of coracobrachialis

A
  • Flexor of the arm at the glenohumeral joint

- Adducts arm

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4
Q

Vessels of coracobrachialis

A
  • Brachial artery

- Anterior circumflex humeral artery

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5
Q

Attachment of biceps brachii

A
  • Long head – supraglenoid tubercle of scapula
  • Short head = coracoid process
  • Radial tuberosity
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6
Q

Innervation of biceps brachii

A

Musculocutaneous (C5, C6, C7)

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7
Q

Action of biceps brachii

A
  • Powerful flexor of the forearm at the elbow joint
  • supinator of the forearm
  • accessory flexor of the arm at the glenohumeral joint
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8
Q

Vessels of biceps brachii

A
  • Brachial artery

- Anterior circumflex humeral artery

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9
Q

Attachment of brachialis

A
  • Anterior surface of humerus intermuscular septae
  • Tuberosity of the ulna
  • Coronoid process of ulna
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10
Q

Innervation of brachialis

A
  • Musculocutaneous (C5, C6, C7)

- Radial

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11
Q

Action of brachialis

A

Powerful flexor of the arm and forearm at the elbow joint

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12
Q

Vessels of brachialis

A
  • Brachial artery
  • Radial recurrent artery
  • Ulnar collateral artery
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13
Q

Attachment of triceps brachii

A
  • -Long head—infraglenoid tubercle of scapula
  • -medial head—posterior surface of humerus;
  • -lateral head—posterior surface of humerus
  • All: olecranon
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14
Q

Innervation of triceps brachii

A

Radial nerve (C6, C7, C8)

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15
Q

Action of triceps brachii

A

Extension of the forearm at the elbow joint;

-accessory adductor and extensor of the arm at the glenohumeral joint

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16
Q

Attachment of anconeus

A
  • Lateral epicondyle of humerus

* Olecranon and proximal posterior surface of ulna

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17
Q

Innervation of anconeus

A

Radial nerve (C6, C7, C8)

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18
Q

Action of anconeus

A
  • Abduction of the ulna in pronation;

- accessory extensor of the elbow joint

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19
Q

Attachment of pronator teres

A
  • Humeral head—medial epicondyle
  • ulnar head—medial side of coronoid process
  • Roughening on lateral surface, midshaft, of radius
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20
Q

Innervation of pronator teres

A

Median nerve (C6, C7)

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21
Q

Action of pronator teres

A

Pronation

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22
Q

Vessel of pronator teres

A
  • Ulnar artery

- Radial artery

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23
Q

Attachment of flexor carpi radialis

A
  • Medial epicondyle of humerus

* Base of metacarpals II and III

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24
Q

Innervation of flexor carpi radialis

A

Median nerve (C6, C7)

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25
Action of flexor carpi radialis
Flexes and abducts the wrist
26
Vessels of flexor carpi radialis
Radial artery
27
Attachment of palmaris longus
* Medial epicondyle of humerus | * Palmar aponeurosis of hand
28
Innervation of palmaris longus
Median nerve (C7, C8)
29
Vessels of palmaris longus
Ulnar artery
30
Action of palmaris longus
Flexes wrist joint
31
Attachment of flexor digitorum superficialis
- Coronoid process of ulna - Medial epicondyle of humerus - Superior half of anterior surface of radius - Shaft of middle phalanx of digit 2, 3, 4, 5
32
Innervation of flexor digitorum superficialis
Median nerve ( C8, T1)
33
Action of flexor digitorum superficialis
Flexes proximal interphalangeal joints of the digits 2,3,4,5 | -can also flex metacarpophalangeal joints of the same digists and the wrist joint
34
Vessels of flexor digitorum superficialis
-Ulnar and radial artery
35
Attachment of flexor carpi ulnaris
- Medial epicondyle of humerus - olecranon - posterior border of ulna - pisiform bone
36
Innervation of flexor carpi ulnaris
Ulnar nerve (C7, C8, T1)
37
Action of flexor carpi ulnaris
Flexes and adducts the wrist joint
38
Attachment of flexor digitorum profundis
- Palmar surface of base of distal phalanges (digits 2-5) | - Anterior and medial surfaces of ulna
39
Innervation of flexor digitorum profundis (medial half)
-Ulnar nerve (C8, T1)
40
Action of flexor digitorum profundis (medial half)
- Flexes distal interphalangeal joints of the digits 2-5; - flex metacarpophalangeal joints of digits 2-5 - Flexes the wrist joint
41
Vessels of flexor digitorum profundis (medial half)
- Ulnar artery - inferior ulnar collateral artery - ulnar recurrent artery - anterior interosseus artery
42
Innervation of flexor digitorum profundis (lateral half)
Median nerve (anterior interosseus nerve)
43
Attachment of flexor pollicis longus
- Anterior surface of radius | - Palmar surface of base of distal phalanx of 1st digit
44
Innervation of flexor pollicis longus
Median nerve (anterior interosseus) (C7, C8)
45
Action of flexor pollicis longus
• Flexes interphalangeal joint of the thumb | -flex metacarpophalangeal joint of the thumb
46
Vessels of flexor pollicis longus
- Anterior interosseus artery | - Radial artery
47
Attachment of pronator quadratus
- anterior surface of distal radius | - anterior surface of distal ulna
48
Innervation of pronator quadratus
-Median nerve C7, C8 (anterior interosseus)
49
Action of pronator quadratus
Pronation
50
Vessels of pronator quadratus
Anterior interosseus artery
51
Attachment of brachioradialis
- Lateral supracondylar ridge of humerus | - Lateral surface of distal end of radius
52
Innervation brachioradialis
Radial nerve (C5, *C6)
53
Action of bracioradialis
Flexor of elbow joint
54
Vessels of brachioradialis
- Radial recurrent artery - Radial collateral artery - Radial artery
55
Attachment of extensor carpi radialis longus
- Lateral supracondylar ridge of the humerus | - Dorsal surface of base of metacarpal II
56
Innervation of extensor carpi radialis longus
Radial nerve (C6*, C7)
57
Action of extensor carpi radialis longus
Extends and abducts wrist
58
Vessels of extensor carpi radialis longus
- Radial recurrent artery - Radial collateral artery - Radial artery
59
Attachment of extensor carpi radialis brevis
- lateral epicondyle of humerus | - dorsal surface of base of 3rd metacarpal bone
60
Innervation of extensor carpi radialis brevis
Radial nerve (C7*, C8)
61
Action of extensor carpi radialis brevis
Extends and abducts the wrist
62
Vessels of extensor carpi radialis brevis
Radial recurrent artery | -Radial artery
63
Attachment of Extensor digitorum
- Lateral epicondyle of humerus - Four tendons which insert via extensor hoods into the dorsal aspect of the bases of the middle and distal phalanges of digits 1-5
64
Innervation of Extensor digitorum
Posterior interosseus nerve (C7*, C8)
65
Vessels of Extensor digitorum
posterior interosseus artery
66
action of Extensor digitorum
- Extend digits 2-5 | - extend the wrist
67
Attachment of extensor digiti minimi
- Lateral epicondyle of humerus | - Distal phalanx of digit 5
68
Innervation of extensor digiti minimi
Posterior interosseus nerve (C7*, C8)
69
Action of extensor digiti minimi
Extends digit 5
70
Vessels of extensor digiti minimi
- Posterior interosseus artery | - Anterior interosseus artery
71
Attachment of extensor carpi ulnaris
- Lateral epicondyle of humerus - Dorsal surface of 5th metacarpal bone - posterior border of ulna
72
Innervation of extensor carpi ulnaris
Posterior interosseus nerve (C7*, C8)
73
action of extensor carpi ulnaris
-Extends and adducts the wrist
74
vessels of extensor carpi ulnaris
- Radial recurrent artery | - Posterior interosseus artery
75
Attachment of supinator
- Lateral epicondyle of humerus - Supinator crest of ulna - Anterior, lateral, and posterior surfaces of proximal third of radius
76
Innervation of supinator
posterior interosseus nerve (C6*. C7)
77
action of supinator
supination
78
vessels of supinator
- Posterior interosseus artery | - Radial recurrent artery
79
Attachment of abductor pollicis longus
- Posterior surfaces of ulna and radius | - Base of 1st metacarpal
80
Innervation of abductor pollicis longus
Posterior interosseus nerve (C7*, C8)
81
Action of abductor pollicis longus
- Abducts carpometacarpal joint of thumb | - Accessory extensor of the thumb
82
Vessels of abductor pollicis longus
- Posterior interosseus artery | - Anterior interosseus artery
83
Attachment of extensor pollicis brevis
- Posterior surface of radius | - Dorsal surface of base of proximal phalanx of 1st digit
84
Innervation of extensor pollicis brevis
Posterior interosseus nerve (C7* C8)
85
Action of extensor pollicis brevis
- Extends metacarpophalangeal joint of the thumb | - can also extend the carpometacarpal joint of the thumb
86
Vessels of extensor pollicis brevis
- Posterior interosseus artery | - Anterior interosseus artery
87
Attachment of extensor pollicis longus
- Posterior surface of ulna | - Dorsal surface of base of distal phalanx of 1st digit
88
Innervation of extensor pollicis longus
Posterior interosseus nerve (C7* C8)
89
Action of extensor pollicis longus
Extends interphalangeal joint of the first digit | -extend carpometacarpal and metacarpophalangeal joints of the first digit
90
Attachment of extensor indices
- Posterior surface of ulna | - Extensor hood of the 2nd digit
91
Innervation of extensor indices
Posterior interosseus nerve (C7*, C8)
92
Action of extensor indices
Extends 2nd digit
93
Vessels of extensor indices
- Posterior interosseus artery | - Anterior interosseus artery

Anatomy Lab (5 decks)

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