A space in your head where much of the dust, pollen, bacteria and other stuff in the air you breathe is filtered out.
What is the nasal cavity?
100
The special oxygen carrying protein that red blood cells make and use.
What is hemoglobin?
100
The two lower chambers of the heart. These muscular chambers push the blood out of your heart.
What are ventricles?
100
The most important cells in the nervous system. They receive, store, and process information, as well as send messages throughout the body.
What are neurons?
100
The system that gives you your sense of smell.
What is the olfactory system?
200
Balloon-like sacs in the lungs that allow the oxygen you need to pass easily from the air you inhale into the bloodstream.
What are alveoli?
200
Chemical messengers that travel the body via the bloodstream in order to control and coordinate complex processes, such as growth and metabolism.
What are hormones?
200
The largest artery in the body. It carries oxygenated blood away fro the heart to arteries serving the body.
What is the aorta?
200
Connects the brain to the spinal cord and controls thigs like your breathing and heartbeat.
What is the brainstem?
200
The snail shell shaped structure inside the inner ear that that converts sound waves to nerve signals.
What is the cochlea?
300
Tiny motorized whips waving back and forth on the cells lining the back of your nose and throughout much of the respiratory tract.
What are cilia?
300
Vessels that carry blood away from your heart.
What are arteries?
300
Veins that carry oxygenated blood from the lungs to the heart.
What are pulmonary veins?
300
The part of the peripheral nervous system that works automatically. It controls your smooth muscles so your organs can function without you thinking about them.
What is the autonomic nervous system?
300
The two pigments that are mostly responsible for skin color.
What are melanin and carotene?
400
The two tubes that branch out from the trachea.
What are bronchii?
400
Lymphatic/immune system cells that travel throughout your body, attempting to destroy harmful bacteria and viruses.
Double Jeopardy clue: These cells are also known by another name.
What are white blood cells?
What are leukocytes?
400
Two of the four valves found in the heart. These half-moon shaped valves keep the blood from flowing backwards into the ventricles from the aorta and pulmonary artery when the heart relaxes between beats.
What are the semilunar valves?
400
Frontal, parietal, occipital, and temporal
What are the four lobes of the cerebrum?
400
epidermis, dermis, and hypodermis.
What are the three layers of skin?
500
"Strings" or strips of tissue that are pulled tightly across your larynx. They vibrate as air blows by, giving you the bility to make sounds.
What are vocal cords?
500
Special white blood cells that eat dangerous or worn-out cells.
What are phagocytes?
500
The large vein that collects blood from the lower parts of the body.
What is the inferior vena cava?
500
The part of the brain responsible for keeping you balanced.
What is the cerebellum?
500
Your skin (along with your nails, hair, sweat glands, and oil glands) make up this complex group of tissues.