MUSCLE LAB 1

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19 Terms

1

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<p>Deltoid</p>

Deltoid

Origin: medial = acromion process

Insertion: deltoid tuberosity

Function: flexes arm at the shoulder joint

<p>Origin: medial = acromion process</p><p>Insertion: deltoid tuberosity</p><p>Function: flexes arm at the shoulder joint</p>

2

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Biceps Brachii

Origin: coracoid process of scapula

Insertion: radial tuberosity

Function: flexes forearm at the elbow joint

<p>Origin: coracoid process of scapula</p><p>Insertion: radial tuberosity</p><p>Function: flexes forearm at the elbow joint</p>

3

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Brachioradialis

Origin: lateral epicondyle of humerus

Insertion: styloid process of the radius

Function: flexes forearm at the elbow joint

<p>Origin: lateral epicondyle of humerus</p><p>Insertion: styloid process of the radius</p><p>Function: flexes forearm at the elbow joint</p>

4

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Palmaris Longus

Origin: medial epicondyle of humerus

Insertion: palmar aponeurosis

Function: flexes wrist

<p>Origin: medial epicondyle of humerus</p><p>Insertion: palmar aponeurosis</p><p>Function: flexes wrist</p>

5

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Brachialis

Origin: anterior humerus

Insertion: coronoid process

Function: flexes forearm at the elbow joint

<p>Origin: anterior humerus</p><p>Insertion: coronoid process</p><p>Function: flexes forearm at the elbow joint</p>

6

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Triceps Brachii

Origin: lateral + medial surfaces of the humerus

Insertion: Olecranon process of ulna

Function: extends elbow

<p>Origin: lateral + medial surfaces of the humerus</p><p>Insertion: Olecranon process of ulna</p><p>Function: extends elbow </p>

7

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Flexor Carpi Ulnaris

Origin: medial epicondyle of humerus

Insertion: pisiform

Function: flexes hand at wrist

<p>Origin: medial epicondyle of humerus </p><p>Insertion: pisiform</p><p>Function: flexes hand at wrist</p>

8

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flexor carpi radialis

Origin: medial epicondyle of humerus

Insertion: base of the 2nd and 3rd metacarpals

Function: flexes hand at the wrist

<p>Origin: medial epicondyle of humerus</p><p>Insertion: base of the 2nd and 3rd metacarpals</p><p>Function: flexes hand at the wrist </p>

9

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flexor digitorum superficialis

Origin: medial epicondyle of humerus

Insertion: both sides of the middle phalanges

Function: flexes fingers

<p>Origin: medial epicondyle of humerus</p><p>Insertion: both sides of the middle phalanges</p><p>Function: flexes fingers</p>

10

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extensor carpi radialis longus

Origin: lateral epicondyle of humerus

Function: extends and abducts wrist

<p>Origin: lateral epicondyle of humerus</p><p>Function: extends and abducts wrist</p>

11

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extensor carpi radialis brevis

Origin: lateral epicondyle of humerus

Function: extends and abducts wrist

<p>Origin: lateral epicondyle of humerus</p><p>Function: extends and abducts wrist</p>

12

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extensor digitorum communis

Origin: lateral epicondyle of humerus

Function: extends fingers and wrist

<p>Origin: lateral epicondyle of humerus</p><p>Function: extends fingers and wrist</p>

13

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extensor carpi ulnaris

Origin: lateral epicondyle of humerus

Function: ulnar deviation

<p>Origin: lateral epicondyle of humerus</p><p>Function: ulnar deviation</p>

14

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pollicis

Function: adduct, flex, aBduct, extend and oppose the thumb

<p>Function: adduct, flex, aBduct, extend and oppose the thumb </p>

15

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supraspinatus

Origin: supraspinous fossa of scapula

Insertion: greater tuberosity of the humerus

Function: abducts the arm at the shoulder joint

<p>Origin: supraspinous fossa of scapula</p><p>Insertion: greater tuberosity of the humerus</p><p>Function: abducts the arm at the shoulder joint</p>

16

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infraspinatus

Origin: infraspinous fossa of scapula

Insertion: greater tuberosity of the humerus

Function: lateral rotation of the arm(humerus) at the shoulder joint

<p>Origin: infraspinous fossa of scapula</p><p>Insertion: greater tuberosity of the humerus</p><p>Function: lateral rotation of the arm(humerus) at the shoulder joint</p>

17

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subscapularis

Origin: anterior surface of scapula

Insertion: lesser tuberosity of the humerus

Function: medial rotation of the humerus

<p>Origin: anterior surface of scapula</p><p>Insertion: lesser tuberosity of the humerus</p><p>Function: medial rotation of the humerus</p>

18

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teres minor

Origin: lateral border of scapula

Insertion: greater tuberosity of the humerus

Function: lateral rotation at the shoulder joint

<p>Origin: lateral border of scapula</p><p>Insertion: greater tuberosity of the humerus</p><p>Function: lateral rotation at the shoulder joint</p>

19

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teres major

Origin: lateral border of scapula

Insertion: medial lip of the intertubercular groove of humerus

Function: “swimming motion“

<p>Origin: lateral border of scapula</p><p>Insertion: medial lip of the intertubercular groove of humerus</p><p>Function: “swimming motion“</p>