Anatomical position and directional terms

Superior(cranial)

Above or closer to the head. The esophagus is superior to the stomach.

Inferior (caudal)

Below or closer to the feet. The bladder is inferior to the kidneys

Anterior (ventral)

Toward the front of the body. The sternum is anterior to the spine.

Posterior (dorsal)

Toward the back of the body. The sacrum is posterior to the pubis symphysis.

Medial

Closer to the midline of the body. The tibia is the medial bone of the lower leg.

Lateral

Further away from the midline of the body. The radius is lateral to the ulna.

Proximal

Closer to the trunk of the body. The proximal femur articulates with the pelvis to form the hip joint.

Distal

Farther away from the trunk. The distal humerus helps to form the elbow.

Superficial

Closer to the surface of the body. Veins are superficial to arteries.

Deep

Farther from the body's surface. Arteries are deeper than veins.