What is the job of the circulatory system?
moves blood and material through heart and body
What is plasma?
straw colored liquid
largest part of blood
What is the job of a red blood cell?
carries oxygen to other parts of the body
What is the job of a white blood cell?
What is the job of a platelet?
forms blood clots
What is an artery?
vessel that carries blood AWAY from heart
What is a capillary?
smallest blood vessel
What is a vein?
vessel that carries blood TO heart
What does a valve do?
acts like a door
Where is an atrium in the heart?
upper part of the heart
Where is a ventricle int the heart?
lower part of the heart
What is mucus?
sticky fluid that traps dirt/germs
What does your trachea do?
carries air from larynx to lungs
What are bronchioles?
small tubes that branch out from the bronchi in the lungs
What is another name for air sacs?
Describe the larnyx
vocal chords are stretched across it
What are cilia?
tiny hair-like structures that sweep away dirt in the respiratory system
Describe the diaphragm
dome-shaped muscle at bottom of chest
What gas does an organism need for its cells to get energy?
List four diseases of the respiratory system
cold, flu, pneumonia, lung cancer
What is the esophagus?
tube of muscles in throat that help in swallowing
What does your epiglottis do?
covers your trachea
What do your salivary glands do?
make saliva that helps to begin digestion
What does your tongue do?
pushes down food and tastes it
What role does the stomach play in digestion?
produces fluids that help digest food
What are villi?
tiny finger-shaped structures that increase surface area in small intestines
Describe the small intestine
receives food from stomach; connects stomach to large intestine, has villi, digests most food
Describe the large intestine
digests what small intestine doesn't; takes water and salt from the remaining undigested food
What do the kidneys do?
clean the blood; control level of salt, water, calcium, nutrients, and other chemicals in the blood
What does the urinary bladder do?
stores urine until it leaves the body
Name two waste products removed from your body?
urine, sweat, CO2, carbon dioxide