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Medical Terms

Abdominal region

Body region below the torso that extends from the diaphragm to (and including) the pelvis

Accessory Digestive Organs

Components of the digestive system supporting the alimentary canal that runs throughout the body.

Achilles Tendon

Attaches the lower leg muscle to the heel at the back of the foot.

Acid Reflux

The condition in which the acidic contents of the stomach bubble up slightly into the esophagus, causing a burning sensation.

Acid-Base Balance

The balance between acidic (hydrogen donor) and basic (hydrogen acceptor) molecules in a solution.

Acne

A dermatitis caused by blocked hair follicles where an overproduction of sebum results in swelling, inflammation, and often infection by skin bacteria.

Acquired Immunity

Immunity that develops after exposure to a disease or through vaccination.

Action Potential

An electrical signal sent by a neuron down its axon to stimulate the release of neurotransmitter by the axon terminal.

Acupuncture

Practice of inserting thin needles into muscles to reduce symptoms and increase energy flow.

Acute Inflammation

Short-term inflammation in response to injury.

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