Osmosis video - Introduction to vital signs

A vital sign is a measure of the state of the body's vital functions. There are four main vital signs: heart rate, respiratory rate, blood pressure, and body temperature.

The heart rate is the number of times the heart beats per minute. The respiratory rate is the number of breaths per minute. Blood pressure is the force of blood against artery walls as it circulates through the body. The body temperature is the average daily temperature taken orally.