Body Planes and Anatomical Directions Flashcards
Median
The midline plane dividing the body into left/right halves
Sagittal
The plane dividing the body into unequal left and right parts and parallel to the median plane.
Coronal/Frontal
The plane dividng the body into equal/unequal front and back parts. The terms anterior and posterior relate to this plane
Transverse/Cross Horizontal
The horizontal plane divides the body into upper (cranial) and lower (caudal) parts. Cross/transverse sections are perpendicular to the long axis of the body or other structure and may not be horizontal.
Cranial/Superior
These terms refer to a structure being closer to the head or higher than another structure in the body.
Caudal/Inferior
These terms refer to a structure being closer to the feet or lower than another structure in the body.
Anterior/Ventral
These terms refer to a structure being more in front than another structure in the body.
Posterior/Dorsal
These terms refer to a structure being more in back than another structure in the body.
Medial
This term refers to a structure being closer to the median plane than another structure in the body.
Lateral
This terms refers to a structure being further away from the median plane than another structure in the body.
Proximal
Employed with reference to the limbs only, this term refers to a structure being closer to the median plane or root of the limb than another structure in the limb. Such a structure would ordinarily be superior to the other.
Distal
Employed with reference to the limbs only, this term refers to a structure being further away from the median plane or root of the limb than another structure in that limb. Such a structure would ordinarily be inferior to the other.
Superficial + Deep
The term “superficial” is synonymous with external, and the term “deep” with internal. Related to the reference point on the chest wall, structure closer to the surface of the body is superficial; structure further away from the surface is deep.
Ipsilateral + Contralateral
The term “ipsilateral” means “on the same side” (in this case, as a reference point); “contralateral” means “on the opposite side” (of the reference point).
Cardi-
heart
Append-
to hang something
Cyt-
cell
Dors-
back
Homeo-
same
Endo-
within
An-
without
Peri-
around
Bronch-
windpipe
-stasis
standing still