Question

elbow flexion occurs around the ____ axis and can be called ____ in orthogonals.
a) transverse, +theta z
b) frontal, +theta x
c) coronal, -theta x
d) sagittal, -theta y

Explanation:

Elbow flexion occurs around the frontal (coronal) axis. In orthogonals, elbow flexion is considered a positive movement around the X - axis.

Answer:

B. Frontal, +theta X