Arms : Muscles

Question 0

Infraspinatus

Answer 0

Muscle in the infraspinous fossa of scapula. A rotator cuff.
A: circumduction of humerus O: infraspinous fossa of scapula
I: greater tubercle of humerus

Question 1

Supraspinatus

Answer 1

Superior muscle on in supraspinous fossa. A rotator cuff.
A: circumduction of humerus O: supraspinous fossa of scapula
I: greater tubercle of humerus

Question 2

Teres minor

Answer 2

Muscle inferior to Infraspinatus. Insertion is OVER triceps brachii long head. A rotator cuff.
A: circumduction of humerus I: greater tubercle of humerus

Question 3

Subscapularis

Answer 3

Muscle on the back side of the scapula facing ribs.

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

Question 4

Teres major

Answer 4

Muscle inferior to teres minor. Muscle connects UNDER triceps brachii long head.
A: adduction of humerus I:Intertubercular sulcus of humerus

Question 5

Rhomboid major

Answer 5

Muscle next to spine but inferior to rhomboid minor.

A: retraction of scapula I: medial border of scapula

Question 6

Rhomboid minor

Answer 6

Muscle next to spine but superior to rhomboid major.

A: retraction of scapula I: medial border of scapula

Question 7

Serratus anterior

Answer 7

By external abdominal oblique. Jagged muscle.

A: protraction of scapula I: medial border of scapula

Question 8

Latissimus dorsi

Answer 8

“Lats” muscles. Side muscles. Deeper

A: adduction of humerus O: lumbar vertebrae I: Intertubercular sulcus of humerus.

Question 9

Trapezius

Answer 9

Big triangular muscle all across back. Most superficial.

A: elevation, depression, and retraction of scapula O: cervical and thoracic vertebrae I: spine of scapula

Question 10

Deltoid

Answer 10

Shoulder muscle. A: abduction of humerus. O: acromion and spine of scapula I: deltoid tuberosity of humerus

Question 11

Pectoralis major

Answer 11

Most superficial pec muscle. A: adduction and flexion of humerus O: sternum and clavicle I: Intertubercular sulcus of humerus

Question 12

Pectoralis minor

Answer 12

Smaller pec muscles deeper. A: protraction of scapula I: coracoid process of scapula

Question 13

Triceps brachii long head

Answer 13

Articulates with teres minor. A: extends elbow (forearm) I: Olecranon process of ulna

Question 14

Triceps brachii lateral head

Answer 14

Lateral to long head. A: extends elbow (forearm) I: Olecranon process of ulna

Question 15

Triceps brachii medial head

Answer 15

Medial and deep. A: extends elbow (forearm) I: Olecranon process of ulna

Question 16

Biceps brachii

Answer 16

Biggest and most anterior. A: flexes elbow; supinates forearm I: radial tuberosity of radius

Question 17

Brachialis

Answer 17

Deeper to biceps brachii. Under biceps brachii. A: flexes elbow O: shaft of humerus I: Coronoid process of ulna

Question 18

Coracobrachialis

Answer 18

Skinny muscle from armpit/ anterior. A: adduction of humerus O: coracoid process of scapula

Question 19

Cubital fossa

Answer 19

Hollow spot in elbow space. Anterior

Question 20

Pronator teres

Answer 20

More proximal muscle to palmaris longus. Anterior and superficial. A: pronates forearm

Question 21

Flexor carpi radialis

Answer 21

Muscle anterior on radial side. Superficial.

A: flexes wrist, radial deviation of hand O: medial epicondyle of humerus

Question 22

Palmaris longus

Answer 22

Muscle in between flexor carpi radialis and ulnaris. Anterior and superficial.
A: flexes wrist O: medial epicondyle of humerus

Question 23

Flexor carpi ulnaris

Answer 23

Muscle anterior and superficial on ulnar side. A: flexes wrist, ulnar deviation of ulna O: medial epicondyle of humerus

Question 24

Flexor digitorum superficialis

Answer 24

Muscle deeper than flexor carpi muscles. Directly underneath | A: flexes fingers

Question 25

Flexor digitorum profundus

Answer 25

Deep muscle more on lateral side of anterior side. | A: flexes fingers

Question 26

Flexor pollicis longus

Answer 26

Muscle deep on medial side anterior side. | A: flexes thumb

Question 27

Pronator quadratus

Answer 27

Square muscle close wrist. Very deep on anterior side. | A: pronates forearm.

Question 28

Flexor retinaculum

Answer 28

Connective sheath tissue that covers the carpel tunnel.

Question 29

Brachioradialis

Answer 29

A: flexes elbow

Question 30

Extensor carpi radialis longus

Answer 30

A: extends wrist; radial deviation of hand

Question 31

Extensor carpi radialis brevis

Answer 31

A: extends wrist; radial deviation of hand O: lateral epicondyle of humerus

Question 32

Extensor digitorum

Answer 32

A: extends fingers O: lateral epicondyle of humerus

Question 33

Extensor digiti minimi

Answer 33

A: extends little finger O: lateral epicondyle of humerus

Question 34

Extensor carpi ulnaris

Answer 34

A: extends wrist; ulnar deviation of hand O: lateral epicondyle of humerus

Question 35

Aconeus

Answer 35

A:

Question 36

Supinator

Answer 36

A: Supinates forearm

Question 37

Abductor pollicis longus

Answer 37

A: abducts thumb

Question 38

Extensor pollicis brevis

Answer 38

A: extends thumb

Question 39

Extensor pollicis longus

Answer 39

A: extends thumb

Question 40

Extensor indicis

Answer 40

A: extends index finger

Question 41

Extensor retinaculum

Answer 41

Connective tissue sheath that contains extensor tendons

Question 42

Thenar group

Answer 42

Group of four muscles. Move thumb

Question 43

Abductor digiti minimi

Answer 43

Muscle on pinky side. A: abducts little finger.