Circulatory System Flashcards
1
Q
What is the role of circulatory system?
A
- Transport nutrients
- Transport waste
- Transport oxygen
2
Q
What are the parts / organs of this system?
A
- Blood
- Vessels
- Lungs
- Heart
3
Q
What is blood made of? What do they do
A
Plasma and blood cells.
Plasma transports nutrients/ removes waste
Cells include red and white blood cells and platelets.
4
Q
What are three types of vessels? What do they do?
A
Where blood moves around it.
Arteries, veins, capillaries
5
Q
What do lungs do?
A
Gas exchange. Oxygenates blood. Diffusion from high concentration of oxygen (air) into low concentration (blood)
6
Q
What do heart do?
A
Contracts to pump blood
7
Q
How does blood enter and exit heart?
A
- Deoxygenated goes down vena cava and enters right atrium then right ventricle
- Tricuspid valve closes forcing blood to exit pulmonary arteries in lungs
- Lungs oxygenate the blood
- Enters through pulmonary vein and enters left atrium and left ventricle
- Mitral valve closes when heart beats and blood is pushed into aorta and body
8
Q
Look at worksheet
A
Of how we breathe
9
Q
What is cellular respiration? What do they need?
A
Cells respire to make energy.
Cells need glucose and oxygen to produce CO2, H2O, and energy
