Cardiovascular System- Ayre

What does blood carry from one place to another?

• Nutrients

• Hormones

• Waste

• Body heat

• All of the above

Cardiovascular System - Blood True or False: Blood is the only fluid tissue in the body.

• True

• False

Blood contains both ______ and ______ components.

• solid, liquid

• gas, liquid

• solid, gas

• plasma, gas

Erythrocytes (Also known as Red Blood Cells or RBC) make up about what percentage of the total blood sample?

• 10%

• 25%

• 45%

• 55%

Plasma makes up ______% of the total blood sample.

• 55

• 25

• 70

• 40

Leukocytes (Also known as White Blood Cells or WBCs) make up less than what percentage of the total blood sample?

• 1%

• 10%

• 45%

• 55%

What is the function of platelets in the blood?

• Platelets are not technically cells and are used in clotting.

• Platelets transport oxygen throughout the body.

• Platelets produce antibodies to fight infections.

• Platelets regulate blood sugar levels.

Blood color varies based on oxygen levels. If O2 rich, blood will be ______. If O2 poor, color will be a dull red or purple.

• scarlet

• blue

• green

• yellow

What is the normal pH range of blood?

• 7.35-7.45

• 6.8-7.0

• 7.8-8.0

• 6.0-6.5

Blood accounts for what percentage of your total body weight?

• 8%

• 2%

• 15%

• 20%