Directional Terms, Descriptive Terms and Planes Flashcards
Anatomy
Branch of morphology that deals with the structure of an organism (animal/human). (The parts).
Physiology
Normal function of an organism. (How parts work together).
Anatomical Position
Referent for speaking between anatomists and other health care provider standing erect, facing the observer, eyes front, arms at the side with the palms of the hand and tips of the feet directed forward.
Anatomic Orientation
If a subject was lying in the anatomic position, the observer would be viewing from the top of the head.
(My left is their left).
Clinical Orientation
If a subject was lying in the anatomic position, the observer would be standing at the feet.
(My right is their left).
Anterior
Towards the front, abdomen, away from the back.
Ventral
Towards the front, abdomen, away from the back, towards the lower abdominal plane.
Posterior
Towards the back, away from front.
Dorsal
Towards the back bone, away from the front, towards the upper plane.
Rostral
Towards the nose.
Caudal
Towards tail, posterior end of body.
Cranial
Towards the head.
Superior
Upper/towards the head.
Inferior
Lower/towards the feet.
Superficial
Towards the surface, towards the skin.
Deep
Away from surface, away from skin.
Medial
Towards axis/midline.
Lateral
Away from axis/midline.
External
Towards outer surface.
Internal
Towards inner surface.
Proximal
Towards the body, towards the root of a free extremity.
Distal
Away from root of free extremity, away from body.
Planes of Reference
A plane is a flat surface along which a body can be divided (or sectioned) to show internal structures.
Frontal/Coronal
Plane that cuts body into front and back halves.
Transverse
Cutting structure into top and bottom parts.
Sagittal
Cuts body into right and left halves.
Prone
Lying face down.
Supine
Lying on back with face up.
Flexion
Bending of a part or decreasing the angle between 2 parts.
Extension
Straightening or increasing the angle between 2 body parts.
Abduction
Movement away from the axis.
Ex: Open vocal folds allow us to breathe.
Adduction
Movement towards the medium planes.
Ex: Vocal folds come together which creates noise.
Elevation
Closing.
Ex: Jaw closing.
Depression
Opening.
Ex: Jaw opening.