A neuron is a nerve cell that is specialized to receive and conduct electrical impulses.

A bronchus is one of the two tubes that connect the lungs with trachea.

Your heart is made up mostly of cardiac muscle.

A lever is a simple machine that consists a bar that pivots at a fixed point called fulcrum.

The skeletal system is the organ whose primary function is to support and protect the body and to allow the body to move.

A brain is the organ that is the main control of the nervous system.

The larynx is the are of the throat that contains the vocal cords and produce vocal sounds.

Your heart is a muscular organ that is about the size of your fist.

A strain is an injury which a muscle or tendon is overstretched or torn.

A marrow is a special material found in your bones.

Nerves is a collection of nerve fibers through which impulses travel between the central nervous system and other parts of the body.

The pharynx is the passage from the mouth to the larynx and esophagus.

A capillary is a tiny blood vessel that allows an exchange between blood and cells in tissue.

The muscular system is the organ whose primary function is movement and flexibility.

A place where two or more bones meet is called the joint.

The peripheral nervous system include all parts of the nervous system except for the brain and spinal cord.

Respiration is the exchange of oxygen and carbon dioxide between living cells and their environment; includes breathing and cellar respiration.

Systemic circulation is the flow of blood from the heart to all parts of the body and back to the heart.

Mechanical advantage is a number that tells you how many times a machine multiplies force.

A disease that affects the disease is called arthritis.

If your spinal cord is injured then it may block all information to and from the brain.

the respiratory disorders include asthma, emphysema, and SARS.

The word cardio means heart and vascular means blood vessels.

The three kinds of muscle are smooth muscle, cardiac muscle, and skeletal muscle.

A sprain is caused if a ligament is stretched too far or torn.