The Circulatory System Flashcards
How many times did your heart beat in 1 minute while sitting still?
60 times
What was your beats per minute after axercise?
140 times
What is your heart beat?
resting heart rate
what side is the heart on?
left
what does your heart do?
circulate blood
what is the size of your heart
about the size of your fist
what are the 4 functions of the circulatory system?
- delivers oxygen
- delivers nutrients
- removes waste
- fights disease
what is blood?
special tissue that carries important gases and nutrients to and from all parts of your body
what are the three types of blood cells?
red blood cells, white blood cells, and platelets
what do red blood cells do and look like?
carry oxygen; they look like small bowls
what do white blood cells do and look like?
protect us from disease; they are rough looking with little bumps all over them
what do platelets do?
they help blood clot together when you are cut or injured
what are the 4 parts of the circulatory system?
heart, lungs, blood vessels, and blood
what is the muscular organ that pumps blood all around the body?
Heart
what breathes in oxygen from the air and breathes out carbon dioxide (waste) from the body?
lungs
what do blood travel through your body in hollow tubes
blood vessels
how everything is delivered through the circulatory system
blood
what are the three types of blood vessels?
arteries, veins, and capillaries
what blood vessels carry blood away from the heart?
arteries
what blood vessels carry blood towards the heart?
veins
what are very narrow blood vessels?
capillaries
why do your veins look blue?
blood with oxygen is red. blood without oxygen is blue/
what color is the blood moving away from your lungs?
red
what color is the blood moving towards your heart?
blue
