Muscles

Question 1

O: CORACOID process of scapula, I: humerus A: flexes + adducts arm

Answer 1

Coracobrachialis

Question 2

O: lateral border of scapula, I: intertubercular groove of humerus, A: extends arm/adducts/rotates medially

Answer 2

Teres major

Question 3

O: sacral, lumbar, thoracic vertebrae, I: humerus, A: extends/adducts/rotates arm, pulls shoulder down

Answer 3

Latissimus dorsi

Question 4

O: posterior surface of scapula, I: greater tubercle of humerus A: adducts arm

Answer 4

Supraspinatus

Question 5

O: clavicle, sternum, upper ribs, I: intertubercular groove of humerus, A: pulls arm ant./rotates humerus/adducts arm

Answer 5

Pectoralis major

Question 6

O: acromion process, spine of scapula, clavicle, I: DELTOID teberosity of humerus, A: Abducts arm, extends/flexes humerus

Answer 6

Deltoid

Question 7

O: anterior surface of scapula, I: lesser tubercle of humerus, A: rotates arm medially

Answer 7

Subscapularis

Question 8

O: posterior surface of scapula, I: greater tubercle of humerus, A: rotates arm laterally

Answer 8

Infraspinatus

Question 9

O: lateral border of scapula, I: greater tubercle of humerus, A: rotates arm laterally

Answer 9

Teres minor

Question 10

O: gleniod cavity of scapula, I: radial tuberosity of radius, A: flexes forearm at elbow and rotates hand laterally

Answer 10

Biceps Brachii

Question 11

O: anterior shaft of humerus, I: coronoid process of ulna, A: flexes forearm at elbow

Answer 11

Brachialis

Question 12

O: distal lateral end of humerus, I: lateral surface of radius, A: flexes forearm at elbow

Answer 12

Brachioradialis

Question 13

O: lateral + medial surfaces of humerus, I: olecranon process of ulna, A: extends forearm at elbow

Answer 13

Triceps brachii

Question 14

O: lateral epicondyle of humerus, crest of ulna, I: lateral surface of radius, A: rotates forearm laterally

Answer 14

Supinator

Question 15

O: medial epicondyle of humerus, coronoid process of ulna, I: lateral surface of radius, A: rotates forearm medially

Answer 15

Pronator teres

Question 16

O anterior distal end of ulna, I: anterior distal end of radius, A: rotates forearm medially

Answer 16

Pronator quadratus

Question 17

O: medial epicondyle of humerus, I: base of 2nd + 3rd metacarpals, A: flexes and abducts wrist

Answer 17

Flexor carpi radialis

Question 18

O: medial epicondyle of humerus, I: carpal + metacarpal bones, A: flexes and adducts wrist

Answer 18

Flexor carpi ulnaris

Question 19

O: medial epicondyle of humerus, I: fascia of palm, A: flexes wrist

Answer 19

Palmaris longus

Question 20

O: anterior surface of ulna, I: bases of distal phalanges, A: flexes distal joints of fingers

Answer 20

Flexor digitorum profundus

Question 21

O: distal end of humerus, I: base of second metacarpal, A: extends wrist and abducts hand

Answer 21

Extensor capri radialis longus

Question 22

O: lateral epicondyle of humerus, base of second and third metacarpals, A: extends wrist and abducts hand

Answer 22

Extensor carpi radialis brevis

Question 23

O: lateral epicondyle of humerus, base of 5th metacarpal, A: extends and adducts wrist

Answer 23

Extensor carpi ulnaris

Question 24

O: lateral epicondyle of humerus, I: posterior surface of phalanges, A: extends fingers

Answer 24

Extensor digitorum

Question 25

O: outer surface of lower ribs, I: outer lip of iliac crest+ linea alba, A: tenses abdominal wall+ compress. ab. contents

Answer 25

External oblique

Question 26

O: crest of ilium+inguinal ligament, I: cartilage of lower rib, crest of pubis, A: tense ab. wall+compresses ab. contents

Answer 26

Internal oblique

Question 27

O: cost. cart. of lower ribs, lumbar vertebrae, iliac crest, inguinal ligament, I: linea alba + pubis crest, A: Tenses abdominal wall and compresses abdominal contents

Answer 27

Transversus abdominis

Question 28

A: crest of pubis+symphysis pubis, I: sternum+ coastal cartilages, A: Tenses A. wall.+compress AC, flex vertebral column

Answer 28

Rectus abdominus

Question 29

ORIGIN: occipital bone, INSERTION: skin + muscles around eye, ACTION: raises eyebrow

Answer 29

Epicranius

Question 30

ORIGIN: Maxillary and frontal bones, INSERTION: Skin around eye, ACTION: Closes eye

Answer 30

Orbicularis oculi

Question 31

ORIGIN: Muscles near the mouth, INSERTION: skin of lips, ACTION: closes and protrudes lips

Answer 31

Orbicularis oris

Question 32

ORIGIN: Outer surfaces of maxilla and mandible, INSERTION: Orbicularis oris, ACTION: Compresses cheeks inward

Answer 32

Buccinator

Question 33

ORIGIN: Zygomatic bone, INSERTION: Orbicularis oris, ACTION: Raises corner of mouth

Answer 33

Zygomaticus

Question 34

ORIGIN: Fascia in upper chest, INSERTION: Lower border of mandible, ACTION: Draws angle of mouth downward

Answer 34

Platysma

Question 35

ORIGIN: Lower border of zygomatic arch, INSERTION: Lateral surface of mandible, ACTION: Closes jaw

Answer 35

Masseter

Question 36

ORIGIN: Temporal bone, INSERTION: coronoid process and lateral surface of mandible, ACTION: Closes jaw

Answer 36

Temporalis

Question 37

O: ant. surf. of sternum/upper surf. of clavicle, I: mastoid process-temporal bone, A: pull head side/down raise sternum

Answer 37

Sternocleidomastoid

Question 38

O:Spinous processes of lower cervical + upper thoracic vertebrae, I: Mastoid process of temporal bone, A: rotates head

Answer 38

Splenius Capitis

Question 39

O: processes of lower cervical + upper thoracic vertebrae, I: occipital bone, A: extends/bends/rotates head

Answer 39

Semispinalis capitis

Question 40

O: occipital bone + spines of cervical/thoracic vertebrae, I: clavicle/spine/scapula, A: rotates scapula raises arm

Answer 40

Trapezius

Question 41

O: spines of upper thoracic vertebrae, I: medial border of scapula, A: raises + adducts scapula

Answer 41

Rhomboideus major

Question 42

O: Transverse process of cervical vertebrae, I: Medial margin of scapula, A: Elevates scapula

Answer 42

Levator scapula

Question 43

O: outer surfaces of upper ribs, I: ventral surface of scapula, A: pulls scapula anteriorly + downward

Answer 43

Serratus anterior

Question 44

O: Sternal ends of upper ribs, I: coracoid process of scapula, A: pulls scapula anteriorly + downward or raises ribs

Answer 44

Pectoralis minor