FM Week 8 (Hand&Wrist)

Which carpal bone is the axis of rotation and responsible for all wrist motion?

• Scaphoid

• Lunate

• Capitate

• Triquetrum

Flexion & Extension occurs in the _____ plane around the _____/_____ axis.

• transverse; anterior/posterior

• sagittal; medial/lateral

• sagittal; anterior/posterior

• transverse; medial/lateral

The movement of both the radiocarpal and midcarpal joints is:

• Concave-on-Convex

• Convex-on-Concave

ROM for Wrist Flexion is:

• 70-85 degrees

• 60-75 degrees

ROM for Wrist Extension is:

• 60-75 degrees

• 70-85 degrees

The Radiocarpal joint has greater extension than the Midcarpal joint.

• True

• False

Answer explanation

The Radiocarpal joint has greater FLEXION than the midcarpal joint.

Midcarpal joint has greater EXTENSION than the Radiocarpal joint.

• True

• False