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Gross Anatomy Lab > Upper limb and hand (O, I, A, N) > Flashcards

Upper limb and hand (O, I, A, N) Flashcards

1
Q

Origin: Deltoid

A

Acromion process; spine of the scapula; lateral 1/3 of the clavicle

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2
Q

Insertion: Deltoid

A

Deltoid tuberosity

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3
Q

Action: Deltoid

A

Anterior fibers: flexes the arm and internally rotates the arm
Middle fibers: abduct the arm
Posterior fibers: extends and externally rotates the arm

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4
Q

Nerve: Deltoid

A

Axillary (C5, C6)

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5
Q

Origin: Biceps Brachii

A

Short head: coracoid process

Long head: supraglenoid tubercle of the scapula

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6
Q

Insertion: Biceps Brachii

A

Radial tuberosity and aponeurosis of the biceps brachii

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7
Q

Action: Biceps Brachii

A

Flexes and supinates the forearm at the elbow

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8
Q

Nerve: Biceps Brachii

A

Musculocutaneous (C5, C6)

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9
Q

Origin: Brachialis

A

Distal anterior surface of humerus

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10
Q

Insertion: Brachialis

A

coronoid process of the ulna tuberosity

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11
Q

Action: Brachialis

A

Flexes the elbow joint

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12
Q

Nerve: Brachialis

A

Musculocutaneous (C5, C6)

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13
Q

Origin: Coracobrachialis

A

Apex of the coracoid process of the scapula

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14
Q

Insertion: Coracobrachialis

A

Medial surface of the middle shaft of the humerus

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15
Q

Action: Coracobrachialis

A

Flexes and adducts the shoulder joint

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16
Q

Nerve: Coracobrachialis

A

Musculocutaneous (C5, C6)

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17
Q

What three muscles are innervated by the musculocutaneous nerve?

A

Biceps Brachii
Brachialis
Coracobrachialis

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18
Q

Origin: Triceps Brachii

A

Long head: Infraglenoid tubercle of the scapula
Lateral head: posterolateral humerus proximal to radius groove
Medial head: posteromedial surface of the distal humerus below radial groove

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19
Q

Insertion: Triceps Brachii

A

Posterior surface of olecranon process of ulna

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20
Q

Action: Triceps Brachii

A

Extends the forearm at the elbow

Long head: assists in adduction and extension of the shoulder

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21
Q

Nerve: Triceps Brachii

A

Radial (C6, C7, C8, T1)

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22
Q

Origin: Anconeus

A

Lateral epicondyle of the humerus

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23
Q

Insertion: Anconeus

A

Lateral side of the olecranon and superior part of the posterior ulna distally

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24
Q

Action: Anconeus

A

Extension of the arm

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25
Nerve: Anconeus
Radial Nerve
26
Origin: Brachioradialis
Distal lateral supracondylar ridge of distal humerus
27
Insertion: Brachioradialis
Lateral side of distal end of radius
28
Action: Brachioradialis
Flexes elbow; supinates forearm
29
Nerve: Brachioradialis
Radial (C5, C6)
30
Origin: Pronator teres
2 heads: medial epicondyle of the humerus and coronoid process of the ulna
31
Insertion: Pronator teres
Middle of the lateral surface of the radius
32
Action: Pronator teres
Pronates the forearm
33
Nerve: Pronator teres
Median (C6, C7)
34
Origin: Flexor Carpi Radialis
Medial epidcondyle of humerus
35
Insertion: Flexor Carpi Radialis
Base of 2nd metacarpal
36
Action: Flexor Carpi Radialis
Flexes and adducts the wrist
37
Nerve: Flexor Carpi Radialis
Median (C6, C7, C8)
38
Origin: Palmaris Longus
Medial epicondyle of the humerus
39
Insertion: Palmaris Longus
Palmar aponeurosis
40
Action: Palmaris Longus
Tenses the palmar fascia, flexes the wrist
41
Nerve: Palmaris Longus
Median (C6, C7, C8, T1)
42
Origin: Flexor Carpi Ulnaris
Humeral head: medial epicondyle of humerus | Ulnar head: olecranon and post border of ulna
43
Insertion: Flexor Carpi Ulnaris
Pisiform bone, hook of hamate, base of 5th metacarpal
44
Action: Flexor Carpi Ulnaris
Flexes and adducts the wrist
45
Nerve: Flexor Carpi Ulnaris
Ulnar (C7, C8, T1)
46
Origin: Flexor Digitorum Superficialis
Humeroulnar head: medial epicondyle of the humerus, coronoid process of ulna Radial head: superior 1/2 of anterior radius
47
Insertion: Flexor Digitorum Superficialis
Bodies of middle phalanges of the 2nd - 5th digits
48
Action: Flexor Digitorum Superficialis
Flexes the proximal IP joints of the 2nd - 5th digits
49
Nerve: Flexor Digitorum Superficialis
Median (C7, C8, T1)
50
Origin: Flexor Digitorum Profundus
Posterior and medial borders of the ulna; interosseous membrane
51
Insertion: Flexor Digitorum Profundus
Palmar base of distal phalanges of 2nd - 5th digits
52
Action: Flexor Digitorum Profundus
Flexes the distal IP joints of 2nd - 5th digits. Assist with flexion of the wrist
53
Nerve: Flexor Digitorum Profundus
Median and ulnar nerve
54
Origin: Flexor Pollicis Longus
Anterior surface of radius and adjacent interosseous membrane
55
Insertion: Flexor Pollicis Longus
Palmar side of the distal phalanx of the thumb
56
Action: Flexor Pollicis Longus
Flexes the IP joint of the thumb
57
Nerve: Flexor Pollicis Longus
Meidan (C6, C7, C8, T1)
58
Origin: Pronator Quadratus
Anterior surface of the distal ulna
59
Insertion: Pronator Quadratus
Anterior surface of distal radius
60
Action: Pronator Quadratus
Pronates forearm
61
Nerve: Pronator Quadratus
Median (C7, C8, T1)
62
Origin: Extensor Carpi Radialis Longus
lateral supraepicondylar ridge of humerus
63
Insertion: Extensor Carpi Radialis Longus
Dorsal aspect of base of 2nd MC
64
Action: Extensor Carpi Radialis Longus
Extends and abducts the wrist at the hand
65
Nerve: Extensor Carpi Radialis Longus
Radial (C5, C6, C7, C8)
66
Origin: Extensor Digitorum
Lateral epicondyle of the humerus
67
Insertion: Extensor Digitorum
Extensor expansions of medial 4 digits
68
Action: Extensor Digitorum
Extends the MCP joints, extends the IP joints of the 2nd - 5th digits
69
Nerve: Extensor Digitorum
Radial (C6, C7, C8)
70
Origin: Extensor Carpi Ulnaris
Lateral epicondyle of humerus and posterior border of ulna
71
Insertion: Extensor Carpi Ulnaris
Dorsal base of 5th MC
72
Action: Extensor Carpi Ulnaris
Extends and adducts the wrist
73
Nerve: Extensor Carpi Ulnaris
Radial (C6, C7, C8)
74
Origin: Abductor Pollicis Longus
Middle 1/3 of the posterior of the radius and ulna
75
Insertion: Abductor Pollicis Longus
Base of 1st MC bone (radial side)
76
Action: Abductor Pollicis Longus
Abducts and extends the CMC jt of the thumb, abducts, and assists in wrist flexion
77
Nerve: Abductor Pollicis Longus
Radial (C6, C7, C8)
78
Origin: Extensor Digiti Minimi
Lateral epicondyle of the humerus
79
Insertion: Extensor Digiti Minimi
Extensor expansion of the 5th digit w/the extensor of digitorum tendon
80
Action: Extensor Digiti Minimi
Extends MCP joint of the 5th digit
81
Nerve: Extensor Digiti Minimi
Radial (C6, C7, C8)
82
Origin: Extensor Pollicis Longus
Posterolateral surface of the ulna; interosseous membrane
83
Insertion: Extensor Pollicis Longus
Dorsal aspect of base of distal phalanx of thumb
84
Action: Extensor Pollicis Longus
Extends IP joint of the thumb
85
Nerve: Extensor Pollicis Longus
Radial (C6, C7, C8)
86
Origin: Extensor Pollicis Brevis
Posterior surface of the distal radius; the interosseous membrane
87
Insertion: Extensor Pollicis Brevis
Dorsal aspect of base of proximal phalanx of thumb
88
Action: Extensor Pollicis Brevis
Extends the MCP joint of the thumb | Extends and abducts the CMC joint
89
Nerve: Extensor Pollicis Brevis
Radial (C6, C7, C8)
90
Origin: Extensor Indicis
Posterolateral surface of the ulna; interosseous membrane
91
Insertion: Extensor Indicis
Extensor expansion of the index finger
92
Action: Extensor Indicis
extends MCP joint of the index finger
93
Nerve: Extensor Indicis
Radial (C6, C7, C8)
94
Origin: Supinator
Lateral epicondyle of humerus, supinator crest of the ulna
95
Insertion: Supinator
Lateral 1/3 of proximal radius
96
Action: Supinator
Supinates forearm
97
Nerve: Supinator
Radial (C5, C6, C7)
98
Origin: Extensor Carpi Radialis Brevis
Lateral epicondyle of humerus
99
Insertion: Extensor Carpi Radialis Brevis
Dorsal aspect of base of 3rd metacarpal
100
Action: Extensor Carpi Radialis Brevis
Extends and abducts hand at wrist
101
Nerve: Extensor Carpi Radialis Brevis
Radial (C6, C7, C8)
102
Which muscles are innervated by the radial nerve (C6 - C8)?
``` Superficial: Extensor Carpi Radialis Brevis Extensor digitorum Extensor digiti minimi Extensor Carpi Ulnaris Deep: Abductor Pollicis Longus Extensor Pollicis Brevis Extensor Pollicis Longus Extensor Indicis ```

Gross Anatomy Lab (9 decks)

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