Wrist and Hand Flashcards
Which bones make the wrist?
The distal radius and proximal carpal bones.
How many carpal bones are there?
4 proximal row
4 distal row
The wrist allows for what type of movements unique to humans?
Allows for movement of the hand and opposition.
What does volar mean?
Palm.
Which carpals of the proximal row articulate with the radius?
Scaphoid and Lunate
Which 2 carpal bones overlap each other?
Triquetrum and Pisiform
Which carpal is only visible anteriorly?
Pisiform
List the order from lateral to medial of the distal carpal bones.
Trapezium, Trapezoid, Capitate, Hamate
Which carpal is located around the base of metacarpal 2?
Trapezoid
What type of joints are the radiocarpal joints? (scaphoid and lunate)
Synovial Condyloid
What type of joint are the mid-carpal joints?
Synovial Gliding
What does the joint capsule of the wrist include other than the actual wrist joint itself?
The carpometacarpal joints 2-5
How are the metacarpals numbered?
1-5 from thumb to pinky
What does CMC stand for?
Carpometacarpal Joints, where the carpals articulate with the carpals
What type of joint is the 1st CMC joint?
Saddle
CMC joints 2-5 are what type of synovial joints?
Condyloid
What is the function of the deep transverse ligament of the palm?
To stabilize and support the carpometacarpophalangeal joints
How many phalangeal are there in total?
14
Which phalange is not in the 1st digit?
Middle phalanx is not present in the thumb.
What type of joints are the interphalangeal joints?
Hinge joints, they only allow for flexion and extension.
Why is there no transverse ligament present within the phalange joint capsule?
Because that would mean the finger would then be webbed and we would not be able to have as much ROM as we do.
Which of the following bones is found on the medial aspect of the wrist?
a) scaphoid
b) Triquetrum
c) hamate
d) trapezium
e) 2 of the above
e) 2 of the above (hamate and Triquetrum)
Another name for the posterior surface of the hand is:
a) volar
b) dorsal
c) palmer
d) plantar
e) distal
b) dorsal
