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Human Anatomy and Histology > Exam 1 Muscles > Flashcards

Exam 1 Muscles Flashcards

(92 cards)

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1
Q

anterior sternal end of the clavicle, sternum, ribs 1-6, aponeurosis of the external oblique

A

Pectoralis major origin

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2
Q

crest of the greater tubercle of the humerus

A

Pectoralis major insertion

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3
Q

lateral and medial pectoral nerve

A

Pectoralis major nerve

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4
Q

adducts, flexes, extends (when it is flexed, not backwards extension), and medially rotates arm

A

Pectoralis major action

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5
Q

rips 3-5 (costochondral junction)

A

Pectoralis minor origin

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6
Q

coracoid process

A

Pectoralis minor insertion

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7
Q

medial pectoral

A

Pectoralis minor nerve

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8
Q

depresses scapula, elevate ribs (stabilizes scapula by drawing it inferiorly and anteriorly against the thoracic wall)

A

Pectoralis minor action

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9
Q

1st rib (costochondral junction)

A

Subclavius origin

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10
Q

inferior acromial end of clavicle

A

Subclavius insertion

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11
Q

subclavian

A

Subclavius nerve

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12
Q

flexes clavicle or elevates 1st rib

A

Subclavius action

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13
Q

ribs 1-8(9)

A

Serratus anterior origin

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14
Q

deep medial border of the scapula

A

Serratus anterior insertion

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15
Q

long thoracic

A

Serratus anterior nerve

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16
Q

rotate and protract scapula (pulls medial border forward), elevate ribs, it is the deepest scapula muscle

A

Serratus anterior action

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17
Q

occipital protuberance through T12 nuchal ligament

A

Trapezius origin

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18
Q

superior margin of scapular spine and anterior acromial end of the clavicle

A

Trapezius insertion

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19
Q

accessory and cervical plexus

A

Trapezius nerve

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20
Q

rotate scapula, abduct and extend head

A

Trapezius action

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21
Q

transverse processes C1-4

A

Levator scapulae origin

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22
Q

superior angle of scapula

A

Levator scapulae insertion

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23
Q

dorsal scapular

A

Levator scapulae nerve

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24
Q

elevate scapula

A

Levator scapulae action

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25
spinous processes C7-T1
Rhomboideus minor origin
26
medial border of scapula at spine
Rhomboideus minor insertion
27
dorsal scapular
Rhomboideus minor nerve
28
retracts and elevates scapula
Rhomboideus minor action
29
spinous processes T1-4
Rhomboideus major origin
30
medial border of scapula inferior to spine
Rhomboideus major insertion
31
dorsal scapular
Rhomboideus major nerve
32
retracts and rotates scapula
Rhomboideus major action
33
supraspinous fossa
Supraspinatus origin
34
greater tubercle of humerus
Supraspinatus insertion
35
suprascapular
Supraspinatus nerve
36
abducts arm (reach to back of head)
Supraspinatus action
37
infraspinous fossa
Infraspinatus origin
38
greater tubercle of humerus
Infraspinatus insertion
39
suprascapular
Infraspinatus nerve
40
extends and laterally rotates arm
Infraspinatus action
41
middle 1/3 of lateral border of scapula
Teres minor origin
42
greater tubercle of humerus
Teres minor insertion
43
axillary
Teres minor nerve
44
adducts and extends and laterally rotates arm
Teres minor action
45
subscapular fossa
Subscapularis origin
46
lesser tubercle of humerus
Subscapularis insertion
47
subscapular (upper and lower)
Subscapularis nerve
48
rotates arm medially (toward belly)
Subscapularis action
49
spinous process of T7-12, L1-5, median ridge of sacrum and iliac crest (overlaps with trapezius T7-12; trapezius is superficial; occasionally originates at inferior scapula)
Latissimus dorsi origin
50
crest of lesser tubercle of humerus
Latissimus dorsi insertion
51
thoracodorsal
Latissimus dorsi nerve
52
adduct, extend, medially rotate arm
Latissimus dorsi action
53
inferior 1/3 of lateral border of scapula
Teres major origin
54
crest of lesser tubercle humerus
Teres major insertion
55
lower subscapular
Teres major nerve
56
adducts, extends, medially rotates arm
Teres major action
57
lateral clavicle, acromion process, spine of scapula
Deltoid origin
58
deltoid tuberosity
Deltoid insertion
59
axillary
Deltoid nerve
60
abduct, flex, extend, and rotate arm
Deltoid action
61
coracoid process
Coracobrachialis origin
62
mid medial border of humerus
Coracobrachialis insertion
63
musculocutaneous
Coracobrachialis nerve
64
adducts and flexes arm
Coracobrachialis action
65
coracoid process
Coracobrachialis origin
66
mid medial border of humerus
Coracobrachialis insertion
67
musculocutaneous
Coracobrachialis nerve
68
adducts and flexes arm
Coracobrachialis action
69
long head: supraglenoid tubercles; short head: coracoid process
Biceps brachii origin
70
radial tuberosity (primary), bicipital aponeurosis (secondary)
Biceps brachii insertion
71
musculocutaneous
Biceps brachii nerve
72
flex and supinate forearm; flex and adduct arm
Biceps brachii action
73
inferior 2/3 of anterior surface of humerus
Brachialis origin
74
coronoid process of ulna
Brachialis insertion
75
musculocutaneous
Brachialis nerve
76
flex forearm
Brachialis action
77
long head: lateral border of scapula; lateral head: posterior surface of the humerus; medial head: posterior surface of the humerus
Triceps brachii origin
78
olecranon of ulna
Triceps brachii insertion
79
radial
Triceps brachii nerve
80
extend forearm; extend and adduct arm
Triceps brachii action
81
superior from highest rib to next lowest
External intercostals origin
82
next lowest rib (each muscle only extends between 2 ribs)
External intercostals insertion
83
intercostal
External intercostals nerve
84
elevate ribs during inspiration
External intercostals action
85
superior from highest rib to next lowest
Internal intercostals origin
86
next lowest rib (each muscle only extends between 2 ribs
Internal intercostals insertion
87
depresses ribs during expiration
Internal intercostals function
88
Xiphoid process and inferior sternum
Transverse thoracics origin
89
costal cartilage 2-6
Transverse thoracics insertion
90
intercostal
Transverse thoracics nerve
91
expiration (narrows the chest)
Transverse thoracics action
92
part of internal intercostals
Innermost intercostals

Human Anatomy and Histology (9 decks)

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