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Anatomical Position and Directional Terms Anatomical Positions Anatomical position is: standing erect facing forward, head level and eyes facing forward, feet flat on the floor and directed forward, arms are at the sides of the body with palms turned forward. Planes of Reference Frontal plane: vertical plane that divides the body into an anterior/ventral or posterior/dorsal portions. Sagittal plane: vertical plane that divides the body or organ into right and left sides (midsagittal or median plane is down the middle of the body creating equal parts) Transverse plane: divides the body into superior (upper) or inferior (lower) portions. Directional Terms Superior/Cranial: toward the upper part/head Inferior/Caudal: away from the head/lower part Anterior/ventral: nearer to or at front of body; stomach side Posterior/dorsal: nearer to or at the back of body; dorsal fin side Medial: nearer to midline Lateral: farther away from midline Directional Terms Cont. Proximal: nearer to attachment of limb to trunk, nearer to origin Distal: farther away from attachment of limb to trunk, farther away from origin Superficial: toward or on surface of body Deep: away from surface of body Try these… The heart is _______ to liver The stomach is ________ to lungs. The sternum (breastbone) is ______ to the spinal column. The esophagus is ________ to trachea (windpipe). Try these… The stomach side of a dog is called ____. The ______ fin is located on the fish’s back. The ______ fin is also known as the tail fin. The head is ______ to the tail.