Anatomical Terminology - Planes of Reference, Directional Terms

Anatomy of the Bone

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Front Back
Standard anatomical position
Human standing facing forward, feet together & pointing forward, with none of the long bones crossed from the viewers perspective.
Left & right
Refers to the individuals left and right, not the viewer's.
Cranial
Refers to the skull
Postcranial
Refers to the rest of the skeleton, without the skull.
Axial skeleton
Refers to the trunk; vertabrae, sacrum, ribs, and sternum.
Appendicular skeleton
Bones of the limbs, including the shoulder and pelvic girdles.
Sagittal (midsagittal, median, or midline) plane
Plane that divides the body into symmetrical right and left halves.
Parasagittal section (plane)
Any planar slice through the body that parallels the sagittal plane.
Coronal (frontal) plane
Divides the body into anterior and posterior halves and is placed at right angles to the sagittal plane.
Transverse (horizontal) plane
The plane that slices through the body at any height but always passes perpendicular to the sagittal and frontal planes.
Orthograde
Upright torso as in humans (opposed to pronograde, trunk horizontal, as in quadripeds)
Superior (cephalic, cranial)
Toward the head end of the hominid body, cephalic/cranial can be used in non hominids.
Inferior
Opposite of superior, toward the feet of a hominid. the term caudel is used in non-hominids.
Anterior (ventral)
Toward the front of the hominid body. ventral may be used for bipeds and quadrupeds.
Posterior
Towards the back of the hominid body. "dorsal" is used for quadrupeds.