Forearm Flexor

Question 1

Why do we call the forearm the “flexor compartment” and the “extensor compartment”?

Answer 1

Because muscles of the UE are enclosed by deep fascia into compartments

Muscles within these compartments will have a similar action and similar innervation

Question 2

Some Lovers Try Positions that they cant handle ( Wrist Bones)

Answer 2

Scaphoid, Lunate, triquetral, pisiform,trapezium, trapezoid,capitate, hamate

Question 3

What are the Joints of the Hand ?

Answer 3

from distal to proximal

(DIP) Distal interphalangeal
(PIP) Proximal interphalangeal
Metacarpophalangeal

Question 4

Where do the flexor muscles tendons attatch?

Answer 4

they for the common flexor tendon and attach at the medial epicondyle (origin)

Question 5

Where do the extensor muscles tendons attatch?

Answer 5

they for the common extensor tendon and attatch at the lateral epicondyle

Question 6

What is golfers elbow ( medial epicondylitis)?

Answer 6

inflammation of the common flexor tendon

Question 7

What is tennis elbow (lateral epicondylitis)?

Answer 7

inflammation of the common extensor tendon

Question 8

Where does the ulnar nerve enter the forearm?

Answer 8

through the humeral and ulnar head of flexor carpi ulnaris . may be compressed in the cubital tunnel

Question 9

where does the median nerve enter the forearm?

Answer 9

through the humeral and ulnar head of pronator teres

Question 10

Ulnar nerve injury

Answer 10

fracture of medial epicondyle

compression between two heads of flexor carpi ulnaris “cubital tunnel syndrome”

results in loss of hand muscles and skin sensory issues

Question 10

Where does the radial nerve enter the forearm?

Answer 10

it divides into a deep branch (supplies muscles ) and superficial branch (supplies skin)

Question 11

What nerves supply the anterior forearm?

Answer 11

Ulnar nerve supplies flexor carpi ulnaris and half of the flexor digitorum profundus

median nerve supplies all other muscles in the anterior forearm

Question 12

What muscles from medial to lateral make up the first layer of anterior muscles?

Answer 12

pronator teres,flexor carpi radialis,palmaris longus, flexor carpi ulnaris

Question 13

Palmaris longus

Answer 13

missing in one or both sides of 15% of people

weak flexor and has a insignificant function

its tendon is sometimes used as a surgical component

Question 14

What muscles are in the anterior superficial layer?

Answer 14

Pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris

Question 15

What muscles are in the intermediate layer of flexors?

Answer 15

Flexor digitorum superficialis

Question 16

What are the deep muscles of flexors?

Answer 16

flexor pollicis longus, flexor digitorum profundus, pronator quadratus

Question 17

What is the deep branch of the median nerve called and what does it supply?

Answer 17

Anterior interosseus nerve and it supplies the deep flexor muscles in the forearm

Question 18

What seperates the flexors and extensors?

Answer 18

Radius and Ulna

Interosseus membrane

Question 19

What holds the tendons of the anterior forearm muscles in place in the carpal tunnel?

Answer 19

The flexor retinaculum and prevents “bowstringing”

Question 20

What are The superficial veins of the forearm ?

Answer 20

Cephalic vein and basilic vein

Question 21

What are The superficial veins of the forearm ?

Answer 21

Cephalic vein and basilic vein