Human Body Vocabulary

3. Thin membrane that lines the chest wall and lungs.
5. A substance made by the breaking down of proteins in the liver.
6. Neurons that are found only in the central nervous system, they act as middle-man between sensory neurons and motor neurons.
9. The largest part of the brain, it handles thoughts and actions.
10. Raised, hair-like extensions in the lungs that move microbes and debris out of the airways.
14. A small organ located near the lower right abdomen, which is described as a small thin pouch of tissue.
16. The blood vessels that bring oxygen-rich blood from the heart to the rest of the body
17. Small, rodlike strands in muscle fiber that make up 80% of the muscle cell volume.
18. A muscular funnel, that helps with breathing and directs food and liquid to the digestive system.
19. Proteins that help accelerate metabolism, they are found in saliva, the pancreas, intestines and stomach.

1. Flexor: muscles that decrease the angle between bones. Extensor: muscles that increase the angles between bones.
2. Nerve cells that are responsible for carrying signals from the central nervous system towards muscles.
4. Large blood vessels that carry blood from the heart to the kidneys.
7. A long tube that connects the larynx to the lungs. A common name for it is the "Windpipe".
8. The liquid base for the blood, it makes up over half your blood.
9. Partially digested food that moves from the stomach to the duodenum and then the small intestine.
11. A hollow tube above the trachea, located in the neck. It is responsible for the ability to make sounds, and it is also known as the voice box.
12. A treatment for individuals whose kidneys are failing, which works by using a machine to filter the blood instead.
13. Supporting cells for Neurons that help complete the Neurons' complete communication between them.
15. Hollow spaces in the heart, which hold blood.