Anatomical Directions and Planes Flashcards
Superior (Cranial)
This refers to being higher than or closer to the head than another structure in the body (Cranial for quadrupeds [towards head])
Anterior (Ventral)
This refers to being more in front than another structure in the body (Ventral for quadrupeds [belly side])
Posterior (Dorsal)
This refers to more behind another structure in the body (Dorsal for quadrupeds [backside along spine])
Medial
This refers to being closer to the midline of the body in relation to another structure in the body
Lateral
This refers to being further from the midline of the body than another structure in the body
Inferior (Caudal)
This refers to being lower or closer to the feet than another structure in the body (Caudal for quadrupeds [tail end])
Proximal
This refers to being closer to the medial line or the root of then limb in relation to another structure in the limb
Distal
This refers to being further from the medial line or the root of the limb than another structure in the limb
Superficial
This refers to being further from the internal medial line than another structure in the body
Deep
This refers to being closer to the internal medial line than another structure in the body
Ipsilateral
This refers to being on the same side as a reference point
Contralateral
This refers to being on the opposite side of a reference point
Dissection
To take apart and examine
Transection
To make an insertion and open
Median Plane (Mid-Sagittal Plane)
This plane divides the body into symmetrical halves (left and right)
Sagittal Plane
This plane divides the body into two non-symmetrical halves
Coronal Plane (Frontal Plane)
This plane divides the body into its anterior and posterior halves
Transverse Plane (Cross Plane)
This plane divides the body into its superior and inferior halves
Short axis transection
When a cut is made along the shorter side of an organ
Long axis transection
When a cut is made along the longer side of an organ
Oblique transection
A short axis cut that is made at a 45 degree angle to better show the layers of an organ