An organ which produces and releases substances that perform a specific function in the body

A physical or mental feature which is regarded as indicating a condition of disease, particularly such a feature that is apparent to the patient

the blood pressure generated by the heart during contraction

tiny infectious agents that can only multiply when they are inside a host, the living cells of plants, animals, or bacteria

part of an area on the body that has suffered damage through injury or disease

excess mucus and secretions in the air passages of the nose

a medicine that limits the growth of or destroys a microorganism

lymph nodes located in the back of the throat

organisms such as yeasts or molds that reproduce quickly in moist, humid environments

This is a high-pitched whistling sound during breathing. It occurs when air moves through narrowed breathing tubes in the lungs

A-celled organisms that do not rely on a host

A microscopic organism such as a bacterium, virus, or fungus

The pressure in the arteries when the heart is at rest

The pressure of the blood in the circulatory system, often measured for diagnosis since it is closely related to the force and rate of the heartbeat and the diameter and elasticity of the arterial walls.

The specific degree of hotness or coldness of the body.

This is the number of breaths a person takes per minute.

The rhythmic dilation of an artery that results from beating of the heart. Pulse is often measured by feeling the arteries of the wrist or neck.

These reflect essential body functions, including your heartbeat, breathing rate, temperature, and blood pressure

The identification of an illness or other problem by examination of the medical evidence.