Hand Theory

Question 1

What type of joint is the first carpometacarpal joint?

And what movement does it allow?

Answer 1

Saddle

Flexion, extension
Adduction, Abduction

Question 2

2/3 of opposition occurs at what joint ?

Answer 2

1st carpometacarpal

Question 3

1/3 of opposition movement occurs at what joint ?

Answer 3

4th & 5th carpometacarpal joints

Question 4

What type of joint is the metacarpophalangeal joint ?

And what movement does it allow?

Answer 4

Condyloid

Flexion, extension
Abduction, Adduction
Circumduction

Question 5

Function of the interphalangeal palmar plate/ligament

Answer 5

Increase joint congruence

Resist hyperextension

Resists compressive forces

Question 6

What is Dupuytrens Contracture

Answer 6

Fibrosis of longitudinal and transverse bands of the Palmar Aponeurosis

= flexion and lateral pull of 4th & 5th digit
(May progress to all digits)

Question 7

What is the main blood supplier of the Superficial Palmer Arch

Answer 7

Ulnar Artery

Question 8

What is the main blood supplier to the Deep Palmar arch

Answer 8

Dorsal Branch of Radial