Medical Terms

Inflammation of the joints caused by the immune system attacking the body’s own tissues (e.g., rheumatoid arthritis).

A disease in which the immune system mistakenly perceives healthy cells as a threat and responds defensively.

A condition in which the body mistakenly attacks itself, which usually leads to inflammation, pain, and dysfunction.

When the immune system attacks the body’s own cells.

The portion of the peripheral nervous system that controls the function of organs.

The body region that includes the head, neck, and trunk.

Area on the body located directly under the joint where the arm connects to the shoulder, also called the armpit.

Invisible line that runs vertically through the center of the axial region.

The long extension that connects a neuron's dendrite with its axon terminal.

The part of a neuron at the opposite end from the dendrite; sends signals to neighboring neurons.