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Directional Terms
Term | Definition |
---|---|
Anterior | Describes the front or direction toward the front of the body. The toes are anterior to the foot. |
Posterior | Describes the back or direction toward the back of the body. The popliteus is posterior to the patella. |
Superior | Describes a position above or higher than another part of the body proper. The orbits are superior to the oris. |
Inferior | Describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column). The pelvis is inferior to the abdomen. |
Lateral | Describes the side or direction toward the side of the body. The thumb (pollex) is lateral to the digits. |
Medial | Describes the middle or direction toward the middle of the body. The hallux is the medial toe. |
Proximal | Describes a position in a limb that is nearer to the point of attachment or the trunk of the body. The brachium is proximal to the antebrachium. |
Distal | Describes a position in a limb that is farther from the point of attachment or the trunk of the body. The crus is distal to the femur. |
Superficial | Describes a position closer to the surface of the body. The skin is superficial to the bones. |
Deep | Describes a position farther from the surface of the body. The brain is deep to the skull. |