Upper limb muscles

Question 1

Name and origin and insertion

Answer 1

biceps brachii
origin: 
short head: coracoid process
long head: supraglenoid tubercle
insertion:
common tendon into radial tuberosity

Question 2

which head and which muscle

Answer 2

long head of triceps brachii

Question 3

name and action

Answer 3

infraspinatus

laterally rotates and adducts arm

Question 4

name and function

Answer 4

extensor carpi ulnaris

extends and adducts hand

Question 5

Name and action

Answer 5

biceps brachii
flexes arm
flexes and supinates forearms

Question 6

name and action

Answer 6

brachioradialis

flexes forearm

Question 7

name and action

Answer 7

deltoid
arm abduction (when all fibers contract simultaneously)

Question 8

name and action

Answer 8

teres minor

laterally rotates, extends, and adducts arm

Question 9

name and origin and insertion

Answer 9

deltoid

origin: embraces insertion of trapezius, acromial end of clavicle, spine and acromion process of scapula
insertion: deltoid tuberosity of humerus

Question 10

name and action

Answer 10

supraspinatus
arm abduction (first 15 degrees)

Question 11

which head of which muscle?

Answer 11

medial head of triceps brachii

Question 12

name and function

Answer 12

extensor carpi radialis longus

extends and abducts hand

Question 13

name and action

Answer 13

flexor carpi radialis

flexes and abducts hand

Question 14

name and action

Answer 14

flexor carpi ulnaris

flexes and adducts hand

Question 15

name and origin and insertion

Answer 15

triceps brachii
origin:
longhead: infraglenoid tubercle of scapula
lateral: posterior humerus
medial: posterior, distal humerus
insertion: common tendon into olecranon process of ulna

Question 16

name and origin and insertion

Answer 16

latissimus dorsi

origin: thoracolumbar fascia, spines T7-L5, lower 3-4 ribs, crests of sacrum and ilium
insertion: spirals around teres major to insert in floor of intertubercular sulcus of humerus

Question 17

name

Answer 17

extensor retinaculum

Question 18

name and origin and insertion

Answer 18

pectoralis major

origin: clavicle, sternum, cartilage of ribs 1-6, and aponeurosis of external oblique muscle
insertion: greater tubercle of humerus

Question 19

name and origin and insertion

Answer 19

brachialis

origin: front distal half of humerus (embraces insertion of deltoid)
insertion: coronoid process of the ulna and capsule of the elbow joint

Question 20

name

Answer 20

flexor retinaculum

Question 21

name and action

Answer 21

pectoralis major

arm flexion, adduction and medial rotation

Question 22

name and action

Answer 22

triceps brachii

extends forearm and extends arm

Question 23

name and action

Answer 23

subscapularis

medially rotates arm

Question 24

which head of which muscle

Answer 24

lateral head of triceps brachii

Question 25

name and origin and insertion

Answer 25

brachioradialis

origin: lateral supracondylar ridge of humerus
insertion: styloid process of the radius

Question 26

name and action

Answer 26

latissimus dorsi

extends, adducts, and medially rotates arm

Question 27

name and action

Answer 27

brachialis

flexes forearm

Question 28

name and function

Answer 28

extensor digitorum

extends phalanges

Question 29

name and action

Answer 29

palmaris longus

flexes hand