Figure 6-4 Synovial Joint (Sagittal Section)
Use Figure 6-4 to identify the labeled part.
-The special movement of the thumb that allows it to grasp an object and hold onto it is called
A) rotation.
B) opposition.
C) circumduction.
D) eversion.
E) retraction.

Question

Figure 6-4 Synovial Joint (Sagittal Section)
Use Figure 6-4 to identify the labeled part.
-The special movement of the thumb that allows it to grasp an object and hold onto it is called
A) rotation. 
B) opposition. 
C) circumduction. 
D) eversion. 
E) retraction.

Quizplus · Accepted Answer

The labeled part in Figure 6-4 is the thumb joint, which is an example of a synovial joint. The special movement of the thumb described in the question is opposition, which is the movement of bringing the thumb and little finger together across the palm to grasp an object.