APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -This type of joint is biaxial because it permits two axes of movement: flexion/extension and medial/lateral (abduction/adduction). An example is the metacarpophalangeal joints of the hand between the distal metacarpal and proximal phalanx, commonly known as the knuckle. Synovial: Saddle.

Detailed explanation-2: -Biaxial or biplanar joints rotate in two axes, allowing movement in two planes. The foot and hand are examples of biaxial/biplanar joints. They both move laterally, or side-to-side, in the frontal plane and forward and backward (flexion and extension) in the sagittal plane.

Detailed explanation-3: -A biaxial joint allows for motions within two planes. An example of a biaxial joint is a metacarpophalangeal joint (knuckle joint) of the hand.

Detailed explanation-4: -Biaxial means that a joint can move along two planes of motion. In most cases, these joints can bend side-to-side or back-and-forth. Some synovial joints can move along the two axis of motion, while others are limited to one, are non-axial, or can move in three axes of motion.

Detailed explanation-5: -Saddle joints permit abduction and adduction as well as flexion and extension, movements occurring around two axes at right angles to each other; thus, saddle joints are biaxial joints that allow movement in two planes, sagittal and frontal.