Skeletal System
Pieces of hard tissue making up the skeleton in humans and other vertebrates.
What are bones?
These structures, also part of the skeletal system, crush items that has entered the mouth.
What are the teeth?
These balloon like sacs that inflate and deflate, bringing air into and out of the body.
What are the lungs?
Tiny cells which send signals to the brain. They are also known as nerve cells.
What are neurons?
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
The leg bone which connects to the hip.
What is the femur?
Food travels down this long tube from the mouth to the stomach.
What is the esophagus?
The primary muscle used for breathing, located below the lungs.
What is the diaphragm?
The long fiber that carries impulses away from the cell body.
A blockage of blood flow to the heart muscle causes this condition.
What is a heart attack? (myocardial infarction)?
The two minerals are most important for keeping bones strong.
What are calcium and phosphorus?
The organ that digests food and absorbs nutrients.
What is the function of the small intestine?
The tiny air sacs in the lungs where gas exchange occurs.
What are alveoli?
A quick, automatic response to a stimulus.
What is a reflex?
The medical term for high blood pressure.
What is hypertension?
The skeletal system works with this body system to enable movement.
What is the muscular system?
This chemical aids in digestion by speeding up chemical reactions.
What is an enzyme?
This is the process of taking air into the lungs.
What is inhalation?
The insulating layer that helps speed up nerve impulses.
What is the myelin sheath?
The tough, fibrous tissue that connects bones to other bones at joints.
What are ligaments?
The name for the soft tissue that hangs down in the back of the mouth.
What is a uvula?
A disease in the lung caused by breathing in harmful chemicals.
What is emphysema (or lung cancer)
A structure that permits a neuron to pass an electrical or chemical signal to another neuron.
What is a synapse?
These chambers bring blood into the heart from elsewhere in the body.
What are the atria (atrium) ?