The process in which a stimulus is applied to a Neuron for a prolonged period results in a decline in the frequency of the action potentials generated.
Active Transport
Transport across the cell membrane in which energy is needed.
Active Immunity
Immunity in which the body actively manufactures Antibodies when in contact with the Antigen.
Action Potential
A rapid change in the potential that is propagated along the cell.
Action
The changes produced to the joint by muscle contraction.
Actin
One Myofilament responsible for contraction and relaxation.
Acromegaly
A condition in which excessive growth of peripheral parts, such as hands and feet, occurs as a result of increased growth hormone levels in adults.
Acquired Immune Deficiency Syndrome (AIDS)
An infectious condition caused by the Human Immunodeficiency Virus