muscles of forearm and cubital fossa

Question 1

anterior compartment has 8 muscles

Answer 1

all innervated my median and ulnar nerves

Question 2

divided into 3 muscle groups

Answer 2

• Superficial group with 4 muscles
  
  • Intermediate group with 1 muscle
  • Deep group with 3 muscles

Question 3

superficial group- pronator teres muscle origin

Answer 3

• Medial epicondyle and coronoid process of the ulna

Question 4

pronator teres muscle insertion

Answer 4

• Lateral aspect of the shaft of the radius

Question 5

pronator teres muscle action

Answer 5

• Pronation

Question 6

pronator teres muscle innervation

Answer 6

median nerve

Question 7

flexor carpi radialis muscle origin

Answer 7

• Medial epicondyle of the humerus

Question 8

flexor carpi radialis muscle insertion

Answer 8

• Base of the second and third metacarpals

Question 9

flexor carpi radialis muscle action

Answer 9

• Flexion and abduction at the wrist joint

Question 10

innervation of flexor carpi radialis muscle

Answer 10

median nerve

Question 11

palmaris longus muscle origin

Answer 11

• Medial epicondyle of the humerus

Question 12

insertion of palmaris longus muscle

Answer 12

• Palmar aponeurosis and distal half of the flexor retinaculum

Question 13

action of palmaris longus muscle

Answer 13

• Tenses palmar aponeurosis and flexes the wrist

Question 14

innervation of palmaris longus muscle

Answer 14

median nerve

Question 15

flexor carpi ulnaris muscle origin

Answer 15

• Medial epicondyle and posterior border of ulna

Question 16

flexor carpi unlaris muscle insertion

Answer 16

• Pisiform, hook of hamate and the base of the 5th metacarpal

Question 17

flexor carpi ulnaris muscle action

Answer 17

• Flexion and adduction of the wrist joint

Question 18

innervation of flexor carpi ulnaris muscle

Answer 18

ulnar nerve

Question 19

intermediate group-flexor digitorum superficialis muscle origin

Answer 19

• Medial epicondyle and coronoid process of the humerus
  
  • Anterior surface of the radius

Question 20

flexor digitorum superficialis muscle insertion

Answer 20

• Palmar surface of the shaft of the middle phalanges of the
  medial 4 digits

Question 21

action of flexor digitorum superficialis muscle

Answer 21

• Flexion of the proximal interphalangeal joints
  
  • May assist in flexion of the wrist and metacarpophalangeal
    joints

Question 22

innervation of flexor digitorum superficialis muscle

Answer 22

median nerve

Question 23

deep group- flexor digitorum profundus muscle origin

Answer 23

• Anterior and medial surfaces of the ulna
  
  • Medial half of the interosseous membrane

Question 24

insertion of flexor digitorum profundus muscle

Answer 24

• Bases of the distal phalanges of the medial 4 digits

Question 25

flexor digitorum profundus muscle action

Answer 25

• Flexion of the distal interphalangeal joints

Question 26

innervation of flexor digitorum profundus muscle

Answer 26

• Medial half by the ulnar nerve
  
  • Lateral half by the anterior interosseous nerve
    
    • From the median nerve

Question 27

flexor pollicis longus muscle origin

Answer 27

• Anterior surface of the shaft of the radius

Question 28

insertion of flexor pollicis longus muscle

Answer 28

• Base of the distal phalanx of the thumb

Question 29

action of flexor pollicis longus muscle

Answer 29

• Flexion of the interphalangeal joint of the thumb

Question 30

innervation of flexor pollicis longus musle

Answer 30

interosseous nerve from median nerve

Question 31

pronator quadratus muscle origin

Answer 31

• Distal surface of the anteromedial aspect of the ulnar shaft

Question 32

insertion of pronator quadratus muscle

Answer 32

• Distal surface of the anterolateral aspect of the radial shaft

Question 33

action of pronator quadratus

Answer 33

pronation

Question 34

innervation by pronator quadratus muscle

Answer 34

anterior interosseous nerve from median nerve

Question 35

cubital fossa borders