Negatively charged ion.
Androgen
Hormone Secreted by the Adrenal Cortex that regulates male sex organ activity.
Anchor
Protein in the Cell Wall that connects the Cell Membrane to the surrounding structures thus stabilizing the Cell.
Anatomy
Study of the External and Internal Structures of the body and the Physical Relationship between body parts.
Anatomical Position
A standard body position in which the body is erect, with the Feet Parallel and flat on the floor and the Arms at the side. Palms face Forward, Fingers point to the floor.
Anatomic Dead Space
The Volume of Air in the Conducting Passages of the Respiratory System, not involved in gas exchange.
Anastomosis
Direct communication between two Blood Vessels.
Anaphylaxis
The chemical reaction in which a Generalized Allergic Reaction occurs.