Forearm And Wrist Theory

Question 1

What muscle is used for passive supination (ie. most of the time)

Answer 1

Supinator muscle

Question 2

When will the deep radial Nerve turn into the posterior interosseous Nerve

Answer 2

After piercing the supinator muscle

Question 3

What type of joint is the wrist joint

Answer 3

Condyloid

Question 4

What articulations make up the wrist joint

Answer 4

Radius articulate surface

        To 

Scaphoid and lunate

And

Articulator Disc articulates with triquetrium

Question 5

What is the purpose of the sacciform recess

Answer 5

Increase join rom

Prevents radius and ulna rubbing together

Question 6

What type of joints are the intercarpal joints

Answer 6

Plane synovial (allows gliding)

Question 7

What is the midcarpal joint

Answer 7

Joints between proximal and distal row of carpal bones

Question 8

What is the roof and floor of the carpal tunnel

Answer 8

Roof: flexor retinaculum

Floor and walls: carpal bones

Question 9

What structures are effected as a result of carpal tunnel syndrome

Answer 9

Any structure innervated by the median Nerve

Question 10

What degree of movement is allowed at the wrist

Answer 10

105 degrees flexion

95 degrees extension

Question 11

Wrist adduction mostly occurs at which joint

Answer 11

Wrist joint

Question 12

Wrist abduction mostly occurs at which joint

Answer 12

Midcarpal joint