Muscles of the front of the forearm

Question 1

Pronator teres origin is two heads
1)……(the larger and more superficial head) at the …….
2)…….(smaller and deeper head)at the …….

Answer 1

1) humeral head at the anterior surface of medial epicondyle
2) ulnar head at the medial side of the coronoid process

Question 2

pronator teres insertion is ………..

Answer 2

pronator tuberosity in the middle of the lateral surface of the shaft of the radius

Question 3

pronator teres action is 1)……….
2)………..

Answer 3

1) Powerful pronation of the forearm
2) weak flexion of the elbow

Question 4

…… enters the forearm between the two heads of pronator teres
………passes deep to the two heads of the muscle

Answer 4

Median nerve
ulnar artery

Question 5

Innervation of the superficial group of the front muscles of the arm ……except flexor carpi ulnaris is supplied by ……

Answer 5

median nerve
ulnar nerve

Question 6

flexor carpi radialis’origin is …..

Answer 6

the anterior surface of medial epicondyle (humerus)

Question 7

flexor carpi radialis’ insertion is tendon passes through the …………..part of the…….in a ……
it is inserted into the palmer surfaces of thhe bases of …… and …. metacarpal bones

Answer 7

lateral part of the flexor retinaculum
special compartment
2nd and 3rd

Question 8

flexor carpi radialis’ action is
1)…..
2)…….
3)……
1 and 2 are common actions of superficial muscles of the front of the forearm

Answer 8

Flexion of the wrist
weak flexion of the elbow
abducts the hand

Question 9

Palmaris longus muscle may be absent in one or both sides

Question 10

Palmaris longus muscle’s origin is ……

Answer 10

the anterior surface of medial epicondyle (humerus)

Question 11

Palmaris longus muscle’s insertion ………

Answer 11

passes superficial to the flexor retinaculum to be inserted into:
apex of palmar aponeurosis

Question 12

Palmaris longus muscle’s action:
1)………
2)……..
3)…….

Answer 12

flexion of the wrist
weak flexion of the elbow
make the palmar aponeurosis tense (to give more production to the structures in the palm of the hand)

Question 13

Flexor carpi ulnaris muscle lies along the medial side of the forearm

Question 14

Flexor carpi ulnaris’ origin is …. head and ……head

Answer 14

the anterior surface of medial epicondyle (humeral head)
ulnar head from the medial margin of olecranon process and antebrachial fascia

Question 15

Flexor carpi ulnaris’ action 1)……..
2)……..
3)……….

Answer 15

Flexion of the wrist
weak flexion of the elbow
adducts the hand

Question 15

flexor digitorum superficialis (sublimis) origin is ….. head and ……..head

Answer 15

humero-ulnar head from medial epicondyle and medial side of coracoid process of ulna
radial head from the anterior oblique line of radius

Question 16

Flexor carpi ulnaris’ insertion

Answer 16

the pisiform bone

Question 17

flexor digitorum superficialis (sublimis) insertion is …. tendons passes deep to the ……. across ……… on reaching the …… phalanges of the medial 4 fingers each tendon ivides into two slips (to allow the passage of the corresponding underlying tendon of flexor digitorum profundus) the two slips are inserted into the sides of the shaft of the …. phalanges

Answer 17

4
flexor retinaculum
carpal tunnel
proximal
middle

Question 18

flexor digitorum superficialis (sublimis) action
1
2
3

Answer 18

flexion of the wrist
weak flexion of the elbow
flexes the meta carrpo phalangeal and proximal inter phalangeal joints of the medial 4 fingers

Question 19

innervation of deep group of muscles of the forearm……. except

Answer 19

anterior interosseous branch of median nerve
medial half of flexor digitorum profundus is supplied by ulnar nerve

Question 20

Flexor digitorum profundus’ insertion ……………….And then the passes between the two slips of flexor digitorum superficialis opposite the …. Phalanges to be inserted in the palmar surface of the base of the …………

Answer 20

The four tendons pass deeply through the flexor retinaculum behind the tendons of ……superficial .
Proximal
Distal phalanx

Question 21

Flexor digitorum profundus’ action:
1)…….
2)……..

Answer 21

1)flexes all joints of the medial 4 fingers
2) flexes the wrist

Question 22

Flexor pollicis longus’ origin ……….and ………

Answer 22

Upper part (2/3) of the anterior surface shaft of the radius below the oblique line(flexor digitorum superficial radial head is from the anterior oblique line of the radius)
Adjacent side of the Anterior surface of interosseus
membrane

Question 23

Flexor pollicis longus’s insertion:……..

Answer 23

Tendon passes through the carpal tunnel to be inserted to the distal phalanx of the thumb (base of the anterior surface of the distal phalanx of the thumb)

Question 24

Flexor digitorum profundus’ origin is …… and …..

Answer 24

Upper 3/4 of shaft of the ulnar
Medial half of interosseous membrane

Question 25

Flexor pollicis longus’ action:
1)…..
2)…..

Answer 25

1) flexes all joints of the thumb
2) flexes the wrist

Question 26

The 8 tendons of the flexor digitorum superficialis and profundus are surrounded by……. And the flexor pollicis longus’ tendon is surrounded by …….

Answer 26

Ulnar bursa
Radial bursa

Question 27

Pronator quadratus’ origin ……….

Answer 27

Arises from the oblique risge of the lower quarter of the anterior surface of the ulna

Question 28

Pronator quadratus’ insertion:

Answer 28

Lower quarter of the anterior and medial surfaces of the shaft of the radius

Question 29

Pronator quadratus’ action: …….

Answer 29

Pronates the forearm at the radio-ulnar joint