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Occupation & Movement > Muscle Origins and Insertions > Flashcards

Muscle Origins and Insertions Flashcards

1
Q

Sternocleidomastoid (SCM)

A

O: sternal head @ manubrium, clavicular head @ medial 1/3 clavicle
I: mastoid process

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2
Q

Scalenes

A

O: C3-C6 (anterior), C2-C7 (middle), C5-C6 (posterior)
I: 1st rib (a), 1st rib (m), 2nd rib (p)

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3
Q

Descending part of trapezius

A

O: Occipital bone, nuchal ligament, C7 ligament
I: lateral 1/3 clavicle, acromium of scapula

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4
Q

Internal intercostals

A

O: 11 on each side rib cage
I: B/w adjacent ribs from sternum to posterior angle of rib

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5
Q

External intercostals

A

O: 11 on each side rib cage
I: Extend b/w adjacent ribs

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6
Q

Diaphragm

A

O: Xiphoid process, ribs 7-12, L1-L3
I: Central tendon of diaphragm

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7
Q

External obliques

A

O: External ribs 5-12
I: Iliac crest, pubic crest&tubercle, linea albea

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8
Q

Transversus abdominus

A

O: Costal cartilage ribs 7-12, thoracolumbar fascia, iliac crest, inguinal ligament
I: Linea albea, pubic crest

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9
Q

Rectus abdominus

A

O: Pubic symphysis, pubic crest
I: Xiphoid process, ribs 5-7

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10
Q

Splenius capitis

A

O: C7-T3
I: Mastoid process of temporal bone, occipital bone

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11
Q

Splenius cervicis

A

O: T3-T6
I: C1-C3

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12
Q

Erector spinae: iliocostalis

A

O: iliac crest & sacrum (lumborum), ribs 7-12 (thoracic), ribs 3-6 (colli)
I: L1-L4 & ribs 5-10 (lumborum), ribs 1-5 (thoracic), C4-C6 (colli)

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13
Q

Erector spinae: longissimus

A

O: L1-L5 & dosal sacrum & iliac crest (thoracis), T1-T6 (cervicis), C4-T4 (capitis)
I: lumbar & thoracic vertebrae & ribs 2-12 (thoracis), C2-C6 (cervicis), mastoid process (capitis)

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14
Q

Erector spinae: spinalis

A

O: T11-L3 (thoracis), C7-T2 & nuchal ligament (colli)
I: T2-T8 (thoracis), C2-C4 (colli)

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15
Q

Transversospinales: semispinalis

A

O: T6-T11 (thoracis), T1-T6 (colli), C4-C7 & T1-T6 (capitis)
I: C6-T4 (thoracis), C2-C5 (colli), occipital bone (capitis)

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16
Q

Transversospinales: rotatores

A

O: thoracic vertebrae
I: spinous process of vertebrae (short: 1 vertebral level above, long: 2 vertebral levels above)

17
Q

Pec major

A

O: medial clavicle (clavicular), manubrium & sternal body (sternocostal), external oblique aponeurosis (abdominal)
I: greater tubercle of humerus

18
Q

Pec minor

A

O: anterior ribs 3-5
I: coracoid process of scapula

19
Q

Subclavius

A

O: superior 1st rib and costal cartilage
I: middle 1/3 of clavicle

20
Q

Serratus anterior

A

O: anterior ribs 1-8
I: medial border of scapula (anterior)

21
Q

Trapezius

A

O: occipital bone, nuchal ligament, C7-T12
I: lateral clavicle, acromion, spine of scapula

22
Q

Latissimus dorsi

A

O: T7-T12 & L1-L5, thoracolumbar fascia, posterior iliac crest, ribs 9-12
I: intertubecular groove of humerus

23
Q

Levator scapulae

A

O: C1-C4
I: superior angle & medial border of scapula to spine of scapula

24
Q

Rhomboid major

A

O: T2-T5
I: medial border scapula, inferior to spine of scapula

25
Q

Rhomboid minor

A

O: C7-T1
I: medial border of scapula (near spine)

26
Q

Deltoid

A

O: lateral 1/3 clavicle, acromion, spine of scapula
I: deltoid tuberosity

27
Q

Supraspinatus

A

O: supraspinous fossa of scapula
I: greater tubercle humerus

28
Q

Infraspinatus

A

O: infraspinous fossa of scapula
I: greater tubercle of humerus

29
Q

Teres minor

A

O: lateral border of scapula
I: greater tubercle of humerus

30
Q

Subscapularis

A

O: subscapular fossa of scapula
I: lesser tubercle of humerus

31
Q

Teres major

A

O: inferior angle of scapula
I: lesser tubercle of humerus

32
Q

Coracobrachialis

A

O: coracoid process of scapula
I: middle 1/3 of humerus

33
Q

Biceps bracii

A

O: supraglenoid tubercle (long head), coracoid process (short head)
I: radial tuberosity

34
Q

Bracialis

A

O: anterior distal 1/2 of humerus
I: proximal ulna (coronoid process&tuberosity)

35
Q

Brachioradialis

A

O: lateral supracondylar ridge (humerus)
I: lateral aspect of distal radius

36
Q

Triceps brachii

A

O: posterior proximal humerus (medial & lateral heads), infraglenoid tubercle (long head)
I: olecranon

37
Q

Anconeus

A

O: lateral epicondyle
I: olecranon & proximal ulna

38
Q

Transversospinales: multifidi

A

O: iliac spine, dorsal sacrum, lumbar, thoracic, C4-C7
I: lumbar, thoracic & cervical vertebrae

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