Figure 6-4 Synovial Joint (Sagittal Section)

question 149

Multiple Choice

Figure 6-4 Synovial Joint (Sagittal Section)
Use Figure 6-4 to identify the labeled part.
-A downward movement toward the longitudinal axis of the body in the frontal plane is termed

• A) inversion.
• B) abduction.
• C) adduction.
• D) flexion.
• E) extension.

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Definitions:

Patellar Reflex

A knee jerk reflex triggered by tapping the patellar tendon, used to test the neural circuits within the spinal cord.

Effectors

Biological structures that act in response to a signal from the nervous system.

Innervates

Refers to the supply of nerves to a specific body part, enabling sensation and movement.

Crossed Extensor Reflex

A reflex action that involves the simultaneous contraction of muscles on one side of the body and the relaxation of muscles on the opposite side, often in response to pain.