Which term indicates closer to the origin of a body part or the point of attachment of a limb to the trunk?

Which term indicates closer to the origin of a body part or the point of attachment of a limb to the trunk?

• A. Proximal
• B. Distal
• C. Superficial
• D. Deep

Answer: (A)

Proximal describes a location that is closer to the point where a limb attaches to the trunk, or closer to the body's center. This is the term used when comparing positions along a limb relative to its origin. For example, the upper arm is proximal to the forearm because the shoulder (the limb’s origin) is nearer to the trunk than the wrist is. In contrast, distal means farther from that attachment point—the wrist is distal to the elbow. Superficial and deep refer to proximity to the body surface, not along a limb, so they don’t describe closeness to the attachment origin.

Proximal describes a location that is closer to the point where a limb attaches to the trunk, or closer to the body's center. This is the term used when comparing positions along a limb relative to its origin. For example, the upper arm is proximal to the forearm because the shoulder (the limb’s origin) is nearer to the trunk than the wrist is. In contrast, distal means farther from that attachment point—the wrist is distal to the elbow. Superficial and deep refer to proximity to the body surface, not along a limb, so they don’t describe closeness to the attachment origin.