Circulation Part 1

What is the function of the human circulatory system?

• Carry CO2 to all cells in the body

• Carry O2, dissolved nutrients to all cells,

• CO2 and other wastes away from cells

• Carry O2, dissolved nutrients away from the body

Which of the following is TRUE about arteries?

• Does not have a pulse

• Carries oxygenated blood (blood with

  O2)

• Carry blood away the heart

• Branch into venules

Which of the following is NOT TRUE about Veins?

• Contain valves to prevent backflow

• No muscles- rely on movement of

  surrounding muscles

• Carry oxygenated blood

• Carry toward the heart

Which of the following is true regarding capillaries?

• Smallest blood vessels

• They contain chloroplasts

• Blood cells often pass through in single file

• Walls are only one cell thick

Which of the following is blood made out of?

• Platelets

• Lysosomes

• Red Blood Cells

• Plasma

• White blood cells

Blood contains what percentage of plasma?

• 10%

• 70%

• 55%

• 25%

Which of the following is true regarding red blood cells

• No nucleus

• Can replicate itself

• Considered a living organism

• Fights things in the body

What is the main function of red blood cells?

• Used for blood clotting

• Attack foreign substances

• Transport Oxygen

• Replicate other cells

The color of red bloods cells is from

• Phagocytes, non-iron containing protein in the cell

• Leukocytes, the iron containing protein in the cell

• The movement of the cell from on area to the other creates this color, non-iron containing protein in the cell.

• Hemoglobin, the iron-containing protein

The main function of white blood cells are

• Blood clotting

• Attack Foreign Substances

• Transport oxygen

• Carry waste and viruses towards the nucleus of the cell