Lower arm

Question 1

coracobrachialis

Answer 1

Origin: coracoid process of scapula

Insertion: medial humerus

Question 2

biceps brachii

Answer 2

Origin: short head: coracoid process of the scapula.

long head: supraglenoid tubercle

Insertion: Radial tuberosity

Question 3

brachialis

Answer 3

Origin: anterior surface of the humerus, particularly the distal half of this bone

Insertion: coronoid process and the tuberosity of the ulna

Question 4

Triceps brachii

Answer 4

Origin: long head: Infraglenoid tubercle of the scapula

lateral head: posterior humerus – above radial grove

medial head: posterior humerus-under radial groove

Insertion: olecranon process of ulna

Question 5

anconeus

Answer 5

Origin: Lateral epicondyle of the humerus

Insertion: lateral surface of the olecranon process and the superior part of the posterior ulna

Question 6

Pronator teres

Answer 6

Origin: humeral head: medial epicondyle of humerus(common flexor tendon)

ulnar head: coronoid process of the ulna

Insertion: radius pronator tuberosity

Question 7

flexor carpi radialis

Answer 7

Origin: medial epicondyle of humerus (common flexor tendon)

Insertion: Bases of second and third metacarpal bones

Question 8

palmaris longus

Answer 8

Origin: medial epicondyle of humerus (common flexor tendon)

Insertion: palmar aponeurosis

Question 9

flexor carpi ulnaris

Answer 9

Origin: medial epicondyle of the humerus (common flexor tendon)

Insertion: pisiform

Question 10

flexor digitorum superficialis

Answer 10

Origin: medial epicondyle of the humerus (common flexor tendon), as well as parts of the radius and ulna.

Insertion: phalanges II-V

Question 11

pronator quadratus

Answer 11

Origin: medial, anterior surface of the ulna

Insertion: lateral, anterior surface of the radius

Question 12

flexor digitorum profundus

Answer 12

Origin: Ulna

Insertion: distal phalanges

Question 13

flexor pollicis longus

Answer 13

Origin: The middle 2/4 of the Volarsurface of the radius and the adjacent interosseus membrane. (Also occasionally a small origin slightly on the medial epicondyle of the ulna.)

Insertion: The base of the distal phalanx of the thumb

Question 14

extensor digitorum

Answer 14

Origin: lateral epicondyle (common extensor tendon)

Insertion: 2nd–5th phalange

Question 15

extensor digiti minimi

Answer 15

Origin: the anterior portion of the lateral epicondyle of the humerus (common extensor tendon)

Insertion: extensor expansion, located at the base of the proximal phalanx of the finger on the dorsal side

Question 16

extensor carpi ulnaris

Answer 16

Origin: Common extensor tendon (lateral epicondyle), ulna

Insertion: 5th metacarpal

Question 17

brachoradialis

Answer 17

Origin: Lateral supracondylar ridge of the humerus

Insertion: Distal radius (Radial styloid process)

Question 18

extensor carpi radialis longus

Answer 18

Origin: lateral supracondylar ridge

Insertion: 2nd metacarpal

Question 19

extensor carpi radialis brevis

Answer 19

Origin: humerus at the anterior of lateral epicondyle (common extensor tendon)

Insertion: base of 3rd metacarpal

Question 20

supinator

Answer 20

Origin: Lateral epicondyle of the humerus, supinator crest of ulna, radial collateral ligament, annular ligament

Insertion: lateral proximal radial shaft

Question 21

extensor indicis

Answer 21

Origin: ulna

Insertion: index finger (extensor hood)

Question 22

abductor pollicis longus

Answer 22

Origin: ulna, radial styloid process

Insertion: 1st metacarpal

Question 23

extensor pollicis brevis

Answer 23

Origin: radius

Insertion: thumb, proximal phalanx

Question 24

extensor pollicis longus

Answer 24

Origin: ulna

Insertion: thumb, distal phalanx