Origin and Insertion Pt. 2

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37 Terms

1
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origin of external oblique

external, inferior borders of inferior ribs (ribs 5-12)

2
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insertion of external oblique

linea alba by a broad aponeurosis; iliac crest

3
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origin of internal oblique

iliac crest; lumbar fascia and inguinal ligament

4
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insertion of internal oblique

linea alba; pubic crest; inferior rib surface of ribs 9-12; costal cartilage of ribs 8-10

5
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origin of rectus abdominis

superior surface of pubis near pubic symphysis

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insertion of rectus abdominis

xiphoid process of sternum; inferior surface of ribs 5-7

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origin of transversus abdominis

linea alba and pubic crest

8
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insertion of transversus abdominis

iliac crest; lumbar fascia and inguinal ligament

9
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origin of pectoralis major

medial clavicle; costal cartilage of ribs 2-6; body of sternum

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insertion of pectoralis major

intertubercular sulcus of humerus

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origin of pectoralis minor

ribs 3-5

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insertion of pectoralis minor

coracoid process of scapula

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origin of serratus anterior

anterior, superior surface of ribs 1-8

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insertion of serratus anterior

medial border of scapula, anterior surface

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origin of trapezius

occipital bone; spinous processes of C7-T12 vertebrae

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insertion of trapezius

clavicle; acromion process and spine of scapula

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origin of levator scapulae

transverse process of V1-C4 vertebrae

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insertion of levator scapulae

superior part of medial border of scapula

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origin of rhomboid major

transverse process of T2-T5

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insertion of rhomboid major

medial border of scapula, from spine to inferior angle

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origin of rhomboid minor

transverse process of C7-T1 vertebrae

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insertion of rhomboid minor

medial border of scapula, superior to spine

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origin of latissimus dorsi

spinous process of T7-T12 vertebrae; ribs 8-12; iliac crest

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insertion of latissimus dorsi

intertubercular sulcus of humerus

25
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origin of deltoid

acromial end of clavicle; costal cartilage of ribs 2-6; body of sternum

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insertion of deltoid

deltoid tubercle of humerus

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origin of subscapularis

subscapular fossa of scapula

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insertion of subscapularis

lesser tubercle of humerus

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origin of supraspinatus

supraspinous fossa of scapula

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insertion of supraspinatus

greater tubercle of humerus

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origin of infraspinatus

infraspinous fossa of scapula

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insertion of infraspinatus

greater tubercle of humerus

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origin of teres major

inferior lateral border of scapula

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insertion of teres major

lesser tubercle and space between greater and lesser tubercle of humerus

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origin of teres minor

upper dorsal lateral border of scapula

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insertion of teres minor

greater tubercle of humerus

37
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what muscles make up the rotator cuff

subscapularis, supraspinatus, infraspinatus, and teres minor