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Anatomy > Axial Muscles > Flashcards

Axial Muscles Flashcards

(107 cards)

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1
Q

What is the origin of the latissimus dorsi?

A

Spinous process of vertebrae, ribs 8-12

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2
Q

What is the insertion of the latissimus dorsi?

A

Humerus

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3
Q

What is the action of the latissimus dorsi?

A

Extension, adduction, and medial rotation of shoulder

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4
Q

What is the origin of the pectoralis major?

A

Ribs 2-6, body of sternum, clavicle

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5
Q

What is the insertion of the pectoralis major?

A

Greater Tubercle Humerus

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6
Q

What is the action of the pectoralis major?

A

Flexion, adduction, medial rotation shoulder

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7
Q

What is the origin of the teres minor?

A

Scapula

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8
Q

What is the insertion of the teres minor?

A

Greater Tubercle Humerus

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9
Q

What is the action of the teres minor?

A

Lateral Rotation Shoulder

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10
Q

What is the origin of the infraspinatus?

A

Infraspinous fossa

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11
Q

What is the insertion of the infraspinatus?

A

Greater Tubercle Humerus

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12
Q

What is the action of the infraspinatus?

A

Lateral Rotation Shoulder

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13
Q

What is the origin of the subscapularis?

A

Subscapular fossa

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14
Q

What is the insertion of the subscapularis?

A

Lesser Tubercle Humerus

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15
Q

What is the action of the subscapularis?

A

Medial Rotation Shoulder

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16
Q

What is the origin of the supraspinatus?

A

Supraspinous fossa

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17
Q

What is the insertion of the supraspinatus?

A

Greater Tubercle Humerus

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18
Q

What is the action of the supraspinatus?

A

Abduction Shoulder

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19
Q

What is the origin of the deltoid?

A

Acromion & Scapular Spine

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20
Q

What is the insertion of the deltoid?

A

Humerus

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21
Q

What is the action of the deltoid?

A

Whole - Abduction of shoulder
Anterior - Flexion/Medial rotation
Posterior - Extension/Lateral rotation

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22
Q

What is the origin of the trapezius?

A

Occipital, Spinous Process of Thoracic Vertebrae

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23
Q

What is the insertion of the trapezius?

A

Acromion & Scapular Spine

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24
Q

What is the action of the trapezius?

A

Move scapula, elevate clavicle, extend neck

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25
What is the origin of the occipitofrontalis frontal?
Epicranal aponeurosis
26
What is the insertion of the occipitofrontalis frontal?
Eyebrow
27
What is the action of the occipitofrontalis frontal?
Raise Eyebrows
28
What is the origin of the occipitofrontalis occipital?
Occipital/frontal
29
What is the insertion of the occipitofrontalis occipital?
Epicranal aponeurosis
30
What is the action of the occipitofrontalis occipital?
Tense Scalp
31
What is the origin of the platysma?
2nd rib/ Acromion
32
What is the insertion of the platysma?
Mandible/Cheek
33
What is the action of the platysma?
Tense Neck, Depress Mandible, pull lip inferior
34
What is the origin of the orbicularis oculi?
Medial orbit
35
What is the insertion of the orbicularis oculi?
eyelids
36
What is the action of the orbicularis oculi?
Close eyes
37
What is the origin of the orbicularis oris?
Maxilla/Mandible
38
What is the insertion of the orbicularis oris?
Lips
39
What is the action of the orbicularis oris?
Close lips
40
What is the origin of the temporalis?
Temporal
41
What is the insertion of the temporalis?
Mandible
42
What is the action of the temporalis?
Jaw Closer
43
What is the origin of the masseter?
Zygomatic Arch
44
What is the insertion of the masseter?
Mandible
45
What is the action of the masseter?
Jaw Closer
46
What is the origin of the lateral pterygoid?
Sphenoid
47
What is the insertion of the lateral pterygoid?
Mandible
48
What is the action of the lateral pterygoid?
Jaw Opener/Lateral
49
What is the origin of the medial pterygoid?
Sphenoid
50
What is the insertion of the medial pterygoid?
Mandible
51
What is the action of the medial pterygoid?
Jaw Closer/Medial
52
What is the origin of the inferior rectus?
Sphenoid
53
What is the insertion of the inferior rectus?
Medial eyeball
54
What is the action of the inferior rectus?
Looks Inferiorly
55
What is the origin of the medial rectus?
Sphenoid
56
What is the insertion of the medial rectus?
Medial eyeball
57
What is the action of the medial rectus?
Looks medially
58
What is the origin of the superior rectus?
Sphenoid
59
What is the insertion of the superior rectus?
Superior eyeball
60
What is the action of the superior rectus?
Looks superiorly
61
What is the origin of the lateral rectus?
Sphenoid
62
What is the insertion of the lateral rectus?
Lateral eyeball
63
What is the action of the lateral rectus?
Looks laterally
64
What is the origin of the inferior oblique?
Maxilla
65
What is the insertion of the inferior oblique?
Inferior/lateral eyeball
66
What is the action of the inferior oblique?
Looks superiorly/laterally
67
What is the origin of the superior oblique?
Sphenoid
68
What is the insertion of the superior oblique?
Superior/lateral eyeball
69
What is the action of the superior oblique?
Looks inferior/laterally
70
What is the origin of the genioglossus?
Mandible
71
What is the insertion of the genioglossus?
Tongue
72
What is the action of the genioglossus?
Depress Tongue
73
What is the origin of the sternocleidomastoid?
Sternal clavicle/manubrium
74
What is the insertion of the sternocleidomastoid?
Temporal
75
What is the action of the sternocleidomastoid?
Flex neck, lateral bend/rotate
76
What is the origin of the erector spinae spinalis?
Iliac crest, sacrum, lumbar spinous process
77
What is the origin of the erector spinae longissimus?
Iliac crest, sacrum, lumbar spinous process
78
What is the origin of the erector spinae iliocostalis?
Iliac crest, sacrum, lumbar spinous process
79
What is the insertion of the erector spinae spinalis?
Spinous process
80
What is the action of the erector spinae spinalis?
Bilateral = Vertebral extension Unilateral = lateral flexion
81
What is the insertion of the erector spinae longissimus?
Transverse process
82
What is the action of the erector spinae longissimus?
Bilateral = Vertebral extension Unilateral = lateral flexion
83
What is the insertion of the erector spinae iliocostalis?
Ribs
84
What is the action of the erector spinae iliocostalis?
Bilateral = Vertebral extension Unilateral = lateral flexion
85
What is the origin of the scalenes?
Transverse process
86
What is the insertion of the scalenes?
Rib one and two
87
What is the action of the scalenes?
Elevate ribs, flex neck
88
What is the origin of the external intercostal?
Inferior rib
89
What is the insertion of the external intercostal?
Superior rib
90
What is the action of the external intercostal?
Elevate ribs
91
What is the origin of the internal intercostal?
Superior rib
92
What is the insertion of the internal intercostal?
Inferior rib
93
What is the action of the internal intercostal?
Depress ribs
94
What is the origin of the external oblique?
Ribs 5-12
95
What is the insertion of the external oblique?
Ilial Crest
96
What is the action of the external oblique?
Compress abdomen, depress ribs, flexes spine
97
What is the origin of the internal oblique?
Iliac crest
98
What is the insertion of the internal oblique?
Ribs 5-12, Xiphoid
99
What is the action of the internal oblique?
Compress abdomen, depress ribs, flexes spine
100
What is the origin of the diaphragm?
Xiphoid, Ribd 4-10, Lumbar vertebrae body
101
What is the insertion of the diaphragm?
Central Tendinous Sheet
102
What is the action of the diaphragm?
Expands thoracic cavity
103
What is the origin of the rectus abdominis?
Pubic symphysis
104
What is the insertion of the rectus abdominis?
Costal cartilage, Xiphoid
105
What is the action of the rectus abdominis?
Compress abdomen, depress ribs, flexes spine
106
Where are the bulbospongiosus, ischiocavernosus, superficial transverse perineal, deep transverse perineal, and external sphincter located?
Urogenital Triangle
107
Where are the coccygeus, levitator ani iliococcygeus, and levator ani pubococcygeus located?
Anal Triangle

Anatomy (2 decks)

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