Anatomy Aoi's Lab 5

Front 1

MUSCLE GROUP

Posterior Thorax

Back 1

Let's go!!!

Front 2

Pectoralis major*

Back 2

A: Arm flexion, rotate arm medially, adducts arm
O: (Sternal End) Clavical; Sternum; Costal Cartilage (1-6)
I: Intertubercular groove of humerus, greater tubercle of humerus

Front 3

Latissimus dorsi*

Back 3

A: Adducts arm, Arm extension, medially rotates arm at shoulder
O: Spines T7-L5; Ribs 9-12; iliac crest
I: Intertubercular groove of humerus

Front 4

Trapezius*

Back 4

A: Stabilizes, raises, retracts, and rotates scapula
O: Occcipital bone; Spinous process of C2, all thoracic vertebrae
I: Acromion, spine of scapula, lateral 1/3 clavicle

Front 5

Deltoid*

Back 5

A: Arm abduction, flexion and medial rotation of humerus, extension and lateral rotation of arm

O: Acromion, spine of scapula, lateral 1/3 clavicle

I: Deltoid tuberosity of humerus

Front 6

MUSCLE GROUP

Anterior Thorax

Back 6

Let's go!!!

Front 7

Pectoralis minor

Back 7

A: Draws scapula forward and downward
O: Anterior surfaces of ribs (3-5)
I: Coracoid process of scapula

Front 8

MUSCLE GROUP

Anterior and Lateral Abdominal Wall

Back 8

Let's go!!!

Front 9

External Oblique*

Back 9

A: Flexes vertebral column (laterally), compresses abdominal wall, trunk rotation, lateral flexion
O: Outer surfaces of ribs (5-12)
I: Linea alba; pubic crest; iliac crest

Front 10

MUSCLE GROUP

Anterior Forearm

Back 10

Let's go!!!

Front 11

Brachioradialis*

Back 11

A: Forearm flexion, stabilizes the elbow during rapid flexion and extension
O: Lateral supracondylar ridge at distal end of humerus
I: Styloid Process of Radius

Front 12

MUSCLE GROUP

Superficial Forearm

Back 12

Let's go!!!

Front 13

Pronator teres

Back 13

A: Pronates forearm, weak flexor of elbow
O: Medial epicondyle of humerus, coronoid process of Ulna
I: Lateral Radius

Front 14

Flexor carpi radialis

Back 14

A: Powerful flexor of wrist, abducts hand
O: Medial epicondyle of Humerus
I: Baste of 2nd and 3rd metacarpals

Front 15

Palmaris longus

Back 15

A: Tenses skin and fascia of palm during hand movements
O: Medial epicondyle of Humerus
I: Palmar aponeurosis

Front 16

Flexor carpi ulnaris*

Back 16

A: Wrist flexor, adducts hand
O: Medial epicondyle of Humerus, Olecranon process and posterior surface of Ulna
I: Pisiform, Hamate, 5th metacarpal

Front 17

Extensor carpi radialis longus*

Back 17

A: Extends wrist, abducts wrist
O: Lateral supracondylar ridge of humerus
I: Base of 2nd metacarpal

Front 18

Extensor carpi radialis brevis*

Back 18

A: Extends wrist
O: Lateral supracondylar ridge of humerus
I: Base of 3rd metracarpal

Front 19

Extensor digitorum

Back 19

A: Extension of fingers
O: Lateral epicondyle of humerus
I: Distal phalanges 2-5

Front 20

Extensor carpi ulnaris

Back 20

A: Extends wrist, adducts wrist
O: Lateral epicondyle of humerus, posterior border of ulna
I: Base of 5th metacarpal

Front 21

MUSCLE GROUP

Deep forearm

Back 21

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Front 22

Flexor pollicis longus

Back 22

A: Flexes distal phalanx of thumb
O: Anterior surface of radius
I: Distal phalanx of thumb

Front 23

Abductor pollicis longus

Back 23

A: Abducts thumb
O: Posterior radius; ulna
I: Bast of first metacarpal

Front 24

Extensor pollicis longus

Back 24

A: Extends thumb
O: Dorsal radius; ulna
I: Base of distal phalanx 1

Front 25

Flexor digitorum profundus

Back 25

A: Flexes fingers
O: Common flexor tendon
I: Distal phalanges 2-5

Front 26

Supinator

Back 26

A: Supinates forearm
O: Lateral epicondyle of humerus
I: Proximal radius

Front 27

MUSCLE GROUP

Thenar of Thumb

Back 27

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Front 28

Abductor pollicis (brevis)

Back 28

A: Abducts thumb
O: Flexor retinaculum
I: Bast of proximal phalanx 1

Front 29

Flexor pollicis (brevis)

Back 29

A: Flexes thumb
O: Flexor retinaculum
I: Base of proximal phalanx 1

Front 30

Opponens pollicis

Back 30

A: Opposition of thumb
O: Flexor retinaculum
I: (anterior side) metacarpal 1

Front 31

Adductor pollicis

Back 31

A: Adducts thumb
O: Metacarpal bases
I: Base of proximal phalanx 1

Front 32

MUSCLE GROUP

Hypothenar of Thumb

Back 32

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Front 33

Opponnens digiti minimi

Back 33

A: Opposition of little finger
O: Flexor retinaculum
I: (medial) metacarpal 5

Front 34

MUSCLE GROUP

Midpalmar

Back 34

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Front 35

Lumbbricals of the hand

Back 35

A: Flexes metacarpo-phalangeal joints
O: Flexor retinaculum
I: proximal phalanges 2-5

Front 36

Palmar interossei, hand

Back 36

A: Adducts fingers
O: Metacarpals
I: proximal phalanges

Front 37

Dorsal interossei, hand

Back 37

A: Abducts fingers
O: Metacarpals
I: proximal phalanges