Muscles Week 9 Lab Flashcards

1
Q

Latissimus dorsi

A

A: adduction of arm
O: lower 3 to 4 ribs
I: spirals around teres major to insert in floor of intertubercular sulcus of humerus
Nerve Supply: thoracodorsal nerve (C6-C8)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Trapezius

A

A: stabilizes scapula
O: occipital bone
I: acromion
Nerve Supply: accessory nerve (cranial nerve XI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Triceps brachii

A

A: powerful forearm extensor
O: posterior shaft of humerus
I: by common tendon into olecranon of ulna
Nerve Supply: radial nerve (C6-C8)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Brachioradialis

A

A: synergist in forearm flexion
O: lateral supracondylar ridge at distal end of humerus
I: base of styloid process of radius
Nerve Supply: radial nerve (C5 and C6)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Deltoid

A

A: prime mover of arm abduction when all its fibers contract simultaneously
O: acromion of scapula
I: deltoid tuberosity of humerus
Nerve Supply: axillary nerve (C5 and C6)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Extensor carpi ulnaris

A

A: extends hand
O: lateral epicondyle of humerus
I: base of fifth metacarpal
Nerve Supply: radial nerve (C7)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

extensor digitroum communis

A

A: prime mover of finger extension
O: lateral epicondyle of humerus
I: by four tendons into distal phalanges of fingers II-V
Nerve Supply: radial nerve (C7)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Extensor carpi radialis longus

A

A: extends hand
O: lateral supracondylar ridge of humerus
I: base of second metacarpal
Nerve Supply: radial nerve (C5 and C6)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Flexor digitorum profundus

A

A: flexes distal interphalangeal joints
O: anteromedial surface of ulna
I: by four tendons into distal phalanges of fingers II-V
Nerve Supply:ulnar nerve (C7 and C8)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Flexor carpi radialis

A

A: powerful flexor of hand
O: medial epicondyle of humerus
I: base of second and third metacarpals
Nerve Supply: median nerve (C6 and C7)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Flexor carpi ulnaris

A

A: flexes hand
O: medial epicondyle of humerus
I: base of the fifth metacarpal
Nerve Supply: ulnar nerve (C8 and T1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Pronator teres

A

A: pronates forearm
O: medial epicondyle of humerus
I: by common tendon into lateral radius
Nerve Supply: median nerve (C6 and C7)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Palmaris longus

A

A: tenses skin fascia of palm during hand movements
O: medial epicondyle of humerus
I: fascia of palm
Nerve Supply: median nerve (C7 and C8)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly