Lab 5: Myology - Pectoral Area and Ventral Upper Limb Flashcards
(71 cards)
1
Q
what muscles are in this muscle group: muscles crossing shoulder joint
A
- pectoralis major
- latissimus dorsi
- deltoid
2
Q
AOI of pectoralis major
A
- action: adducts, flexes, and medially rotates arm
- origin: clavicle, sternum, and ribs
- insertion: humerus (intertubercular sulcus)
3
Q
human OR human and cat: pectoralis major
A
both
4
Q
AOI of latissimus dorsi
A
- action: adducts, extends, and medially rotates arm
- origin: scapula, vertebral column, and iliac crest
- insertion: humerus (intertubercular sulcus)
5
Q
human OR human and cat: latissimus dorsi
A
both
6
Q
AOI of deltoid
A
- action: abducts, flexes, and rotates arm medially and laterally
- origin: clavicle and scapula
- insertion: deltoid tuberosity of humerus
7
Q
human OR human and cat: deltoid
A
both
8
Q
what muscles are in this muscle group: posterior thorax
A
- trapezius
- levator scapulae
9
Q
AOI of trapezius
A
- action: adducts and rotates scapula; elevation and depression of scapula
- origin: superior nuchal line of occipital bone and vertebral column
- insertion: lateral clavicle and scapular spine and acromion
10
Q
human OR human and cat: trapezius
A
both
11
Q
AOI of levator scapulae
A
- action: elevation of scapula, lateral neck flexion
- origin: transverse processes of cervical vertebrae (C1-C4)
- insertion: medial border (scapula)
12
Q
human OR human and cat: levator scapulae
A
both
13
Q
what muscles are in this muscle group: anterior thorax
A
- pectoralis minor
14
Q
AOI of pectoralis minor
A
- action: stabilizes, abducts, and rotates scapula
- origin: ribs 3-5
- insertion: scapula (coracoid process)
15
Q
human OR human and cat: pectoralis minor
A
both
16
Q
what muscles are in this muscle group: shoulder joint
A
- subscapularis
- infraspinatus
- supraspinatus
- teres minor
- teres major
- coracobrachialis
17
Q
what muscles of the shoulder joint are rotator cuff muscles
A
- subscapularis
- infraspinatus
- supraspinatus
- teres minor
18
Q
AOI of subscapularis
A
- action: medial rotation of arm; stabilizes humerus head in glenoid cavity
- origin: subscapular fossa of scapula
- insertion: lesser tubercle of humerus
19
Q
human OR human and cat: subscapularis
A
both
20
Q
AOI of infraspinatus
A
- action: lateral rotation of arm; stabilizes humerus head in glenoid cavity
- origin: infraspinous fossa of scapula
- insertion: greater tubercle of humerus
21
Q
human OR human and cat: infraspinatus
A
both
22
Q
AOI of supraspinatus
A
- action: abduction of arm; stabilizes humerus head in glenoid cavity
- origin: supraspinous fossa of scapula
- insertion: greater tubercle of humerus
23
Q
human OR human and cat: supraspinatus
A
both
24
Q
AOI of teres minor
A
- action: lateral rotation and adduction of arm; stabilizes humerus head in glenoid cavity
- origin: lateral border of scapula
- insertion: greater tubercle of humerus
25
human OR human and cat: teres minor
both
26
what is the common action of rotator cuff muscles
stabilizing the humerus head in the glenoid cavity
27
AOI of teres major
- action: medial rotation, adduction, and extension of arm
- origin: inferior angle and lateral border of scapula
- insertion: intertubercular sulcus of humerus
28
human OR human and cat: teres major
both
29
AOI of coracobrachialis
- action: flexion and adduction of arm
- origin: coracoid process of scapula
- insertion: mid-shaft of humerus
30
human OR human and cat: coracobrachialis
both
31
what muscles are in this muscle group: anterior arm muscles
- biceps brachii (long and short head)
- brachialis
32
AOI of biceps brachii (long and short head)
- action: supination and flexion of forearm
- origin: supraglenoid tubercle and coracoid process of scapula
- insertion: radial tuberosity
33
human OR human and cat: biceps brachii (long and short head)
both
34
AOI of brachialis
- action: flexion of forearm
- origin: anterior distal shaft of humerus
- insertion: ulnar tuberosity and coronoid process of ulna
35
human OR human and cat: brachialis
both
36
what muscles are in this muscle group: posterior arm
- triceps brachii (long, lateral, and medial head)
37
AOI of triceps brachii (long, lateral, and medial head)
- action: extension of forearm; stabilizes shoulder joint
- origin: infraglenoid tubercle (scapula) and proximal posterior shaft of humerus
- insertion: olecranon process (ulna)
38
human OR human and cat: triceps brachii (long, lateral, and medial head)
both
39
what muscles are in this muscle group: anterior forearm
- brachioradialis
40
AOI of brachioradialis
- action: flexion of forearm; pronation of forearm (when supinated); supination of forearm (when pronated)
- origin: distal shaft of humerus
- insertion: styloid process of radius
41
human OR human and cat: brachioradialis
both
42
what muscles are in this muscle group: anterior superficial forearm
- flexor carpi radialis
- palmaris longus
- flexor carpi ulnaris
- pronator teres
43
AOI of flexor carpi radialis
- action: wrist flexion and hand abduction
- origin: medial epicondyle (humerus)
- insertion: metacarpals II and III
44
human OR human and cat: flexor carpi radialis
both
45
AOI of palmaris longus
- action: wrist flexion (weak)
- origin: medial epicondyle (humerus)
- insertion: palmar aponeurosis (sheet-like tendon)
46
human OR human and cat: palmaris longus
both
47
AOI of flexor carpi ulnaris
- action: wrist flexion and hand adduction
- origin: medial epicondyle (humerus) and olecranon process and posterior border (ulna)
- insertion: pisiform and hamate (carpal bones)
48
human OR human and cat: flexor carpi ulnaris
both
49
AOI of pronator teres
- action: forearm pronation
- origin: medial epicondyle (humerus) and coronoid process (ulna)
- insertion: lateral mid-shaft of radius
50
human OR human and cat: pronator teres
both
51
what muscles are in this muscle group: anterior deep forearm
- flexor pollicis longus
- flexor digitorum profundus
52
AOI of flexor pollicis longus
- action: flexion of thumb
- origin: mid-shaft of radius and coronoid process of ulna
- insertion: distal phalanx I (thumb)
53
human OR human and cat: flexor pollicis longus
human
54
AOI of flexor digitorum profundus
- action: flexion of wrist and fingers (2-5)
- origin: proximal shaft of ulna
- insertion: distal phalanges II-V
55
human OR human and cat: flexor digitorum profundus
both
56
what muscles are in this muscle group: posterior superficial forearm
- extensor carpi radialis longus
- extensor carpi radialis brevis
- extensor digitorum
- extensor carpi ulnaris
57
AOI of extensor carpi radialis longus
- action: extension of wrist and abduction of hand
- origin: supracondylar ridge (humerus)
- insertion: metacarpal II
58
human OR human and cat: extensor carpi radialis longus
both
59
AOI of extensor carpi radialis brevis
- action: extension of wrist and abduction of hand
- origin: lateral epicondyle (humerus)
- insertion: metacarpal III
60
human OR human and cat: extensor carpi radialis brevis
both
61
AOI of extensor digitorum
- action: extension of wrist and fingers (2-5)
- origin: lateral epicondyle (humerus)
- insertion: phalanges II-V
62
human OR human and cat: extensor digitorum
both
63
AOI of extensor carpi ulnaris
- action: extension of wrist; adduction of wrist
- origin: lateral epicondyle (humerus) and ulna
- insertion: metacarpal V
64
human OR human and cat: extensor carpi ulnaris
both
65
what muscles are in this muscle group: posterior deep forearm
- abductor pollicis longus
- extensor pollicis longus
- supinator
66
AOI of abductor pollicis longus
- action: abduction and extension of thumb
- origin: radius and ulna (both proximal posterior); interosseous membrane
- insertion: metacarpal I (base)
67
human OR human and cat: abductor pollicis longus
both
68
AOI of extensor pollicis longus
- action: extension of thumb
- origin: ulna (posterior mid-shaft); interosseous membrane
- insertion: distal phalanx of thumb
69
human OR human and cat: extensor pollicis longus
both
70
AOI of supinator
- action: supination of thumb
- origin: ulna (posterior proximal shaft); lateral epicondyle of humerus
- insertion: radius (lateral proximal shaft)
71
human OR human and cat: supinator
both
