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BIOL 319 > Lab 5: Myology - Pectoral Area and Ventral Upper Limb > Flashcards

Lab 5: Myology - Pectoral Area and Ventral Upper Limb Flashcards

1
Q

what muscles are in this muscle group: muscles crossing shoulder joint

A
  • pectoralis major
  • latissimus dorsi
  • deltoid
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2
Q

AOI of pectoralis major

A
  • action: adducts, flexes, and medially rotates arm
  • origin: clavicle, sternum, and ribs
  • insertion: humerus (intertubercular sulcus)
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3
Q

human OR human and cat: pectoralis major

A

both

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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)
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5
Q

human OR human and cat: latissimus dorsi

A

both

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6
Q

AOI of deltoid

A
  • action: abducts, flexes, and rotates arm medially and laterally
  • origin: clavicle and scapula
  • insertion: deltoid tuberosity of humerus
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7
Q

human OR human and cat: deltoid

A

both

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8
Q

what muscles are in this muscle group: posterior thorax

A
  • trapezius
  • levator scapulae
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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
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10
Q

human OR human and cat: trapezius

A

both

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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)
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12
Q

human OR human and cat: levator scapulae

A

both

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13
Q

what muscles are in this muscle group: anterior thorax

A
  • pectoralis minor
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14
Q

AOI of pectoralis minor

A
  • action: stabilizes, abducts, and rotates scapula
  • origin: ribs 3-5
  • insertion: scapula (coracoid process)
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15
Q

human OR human and cat: pectoralis minor

A

both

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16
Q

what muscles are in this muscle group: shoulder joint

A
  • subscapularis
  • infraspinatus
  • supraspinatus
  • teres minor
  • teres major
  • coracobrachialis
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17
Q

what muscles of the shoulder joint are rotator cuff muscles

A
  • subscapularis
  • infraspinatus
  • supraspinatus
  • teres minor
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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
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19
Q

human OR human and cat: subscapularis

A

both

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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
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21
Q

human OR human and cat: infraspinatus

A

both

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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
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23
Q

human OR human and cat: supraspinatus

A

both

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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
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25
Q

human OR human and cat: teres minor

A

both

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26
Q

what is the common action of rotator cuff muscles

A

stabilizing the humerus head in the glenoid cavity

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27
Q

AOI of teres major

A
  • action: medial rotation, adduction, and extension of arm
  • origin: inferior angle and lateral border of scapula
  • insertion: intertubercular sulcus of humerus
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28
Q

human OR human and cat: teres major

A

both

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29
Q

AOI of coracobrachialis

A
  • action: flexion and adduction of arm
  • origin: coracoid process of scapula
  • insertion: mid-shaft of humerus
30
Q

human OR human and cat: coracobrachialis

A

both

31
Q

what muscles are in this muscle group: anterior arm muscles

A
  • biceps brachii (long and short head)
  • brachialis
32
Q

AOI of biceps brachii (long and short head)

A
  • action: supination and flexion of forearm
  • origin: supraglenoid tubercle and coracoid process of scapula
  • insertion: radial tuberosity
33
Q

human OR human and cat: biceps brachii (long and short head)

A

both

34
Q

AOI of brachialis

A
  • action: flexion of forearm
  • origin: anterior distal shaft of humerus
  • insertion: ulnar tuberosity and coronoid process of ulna
35
Q

human OR human and cat: brachialis

A

both

36
Q

what muscles are in this muscle group: posterior arm

A
  • triceps brachii (long, lateral, and medial head)
37
Q

AOI of triceps brachii (long, lateral, and medial head)

A
  • action: extension of forearm; stabilizes shoulder joint
  • origin: infraglenoid tubercle (scapula) and proximal posterior shaft of humerus
  • insertion: olecranon process (ulna)
38
Q

human OR human and cat: triceps brachii (long, lateral, and medial head)

A

both

39
Q

what muscles are in this muscle group: anterior forearm

A
  • brachioradialis
40
Q

AOI of brachioradialis

A
  • 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
Q

human OR human and cat: brachioradialis

A

both

42
Q

what muscles are in this muscle group: anterior superficial forearm

A
  • flexor carpi radialis
  • palmaris longus
  • flexor carpi ulnaris
  • pronator teres
43
Q

AOI of flexor carpi radialis

A
  • action: wrist flexion and hand abduction
  • origin: medial epicondyle (humerus)
  • insertion: metacarpals II and III
44
Q

human OR human and cat: flexor carpi radialis

A

both

45
Q

AOI of palmaris longus

A
  • action: wrist flexion (weak)
  • origin: medial epicondyle (humerus)
  • insertion: palmar aponeurosis (sheet-like tendon)
46
Q

human OR human and cat: palmaris longus

A

both

47
Q

AOI of flexor carpi ulnaris

A
  • action: wrist flexion and hand adduction
  • origin: medial epicondyle (humerus) and olecranon process and posterior border (ulna)
  • insertion: pisiform and hamate (carpal bones)
48
Q

human OR human and cat: flexor carpi ulnaris

A

both

49
Q

AOI of pronator teres

A
  • action: forearm pronation
  • origin: medial epicondyle (humerus) and coronoid process (ulna)
  • insertion: lateral mid-shaft of radius
50
Q

human OR human and cat: pronator teres

A

both

51
Q

what muscles are in this muscle group: anterior deep forearm

A
  • flexor pollicis longus
  • flexor digitorum profundus
52
Q

AOI of flexor pollicis longus

A
  • action: flexion of thumb
  • origin: mid-shaft of radius and coronoid process of ulna
  • insertion: distal phalanx I (thumb)
53
Q

human OR human and cat: flexor pollicis longus

A

human

54
Q

AOI of flexor digitorum profundus

A
  • action: flexion of wrist and fingers (2-5)
  • origin: proximal shaft of ulna
  • insertion: distal phalanges II-V
55
Q

human OR human and cat: flexor digitorum profundus

A

both

56
Q

what muscles are in this muscle group: posterior superficial forearm

A
  • extensor carpi radialis longus
  • extensor carpi radialis brevis
  • extensor digitorum
  • extensor carpi ulnaris
57
Q

AOI of extensor carpi radialis longus

A
  • action: extension of wrist and abduction of hand
  • origin: supracondylar ridge (humerus)
  • insertion: metacarpal II
58
Q

human OR human and cat: extensor carpi radialis longus

A

both

59
Q

AOI of extensor carpi radialis brevis

A
  • action: extension of wrist and abduction of hand
  • origin: lateral epicondyle (humerus)
  • insertion: metacarpal III
60
Q

human OR human and cat: extensor carpi radialis brevis

A

both

61
Q

AOI of extensor digitorum

A
  • action: extension of wrist and fingers (2-5)
  • origin: lateral epicondyle (humerus)
  • insertion: phalanges II-V
62
Q

human OR human and cat: extensor digitorum

A

both

63
Q

AOI of extensor carpi ulnaris

A
  • action: extension of wrist; adduction of wrist
  • origin: lateral epicondyle (humerus) and ulna
  • insertion: metacarpal V
64
Q

human OR human and cat: extensor carpi ulnaris

A

both

65
Q

what muscles are in this muscle group: posterior deep forearm

A
  • abductor pollicis longus
  • extensor pollicis longus
  • supinator
66
Q

AOI of abductor pollicis longus

A
  • action: abduction and extension of thumb
  • origin: radius and ulna (both proximal posterior); interosseous membrane
  • insertion: metacarpal I (base)
67
Q

human OR human and cat: abductor pollicis longus

A

both

68
Q

AOI of extensor pollicis longus

A
  • action: extension of thumb
  • origin: ulna (posterior mid-shaft); interosseous membrane
  • insertion: distal phalanx of thumb
69
Q

human OR human and cat: extensor pollicis longus

A

both

70
Q

AOI of supinator

A
  • action: supination of thumb
  • origin: ulna (posterior proximal shaft); lateral epicondyle of humerus
  • insertion: radius (lateral proximal shaft)
71
Q

human OR human and cat: supinator

A

both

BIOL 319 (13 decks)

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