Human Body Review

What part of the blood carries oxygen

• red blood cell

• white blood cell

• platelet

• plasma

What part of the blood fights disease?

• red blood cell

• platelet

• white blood cell

• plasma

What part of the blood helps form scabs?

• red blood cells

• platelets

• white blood cells

• plasma

Which heart structure prevents blood from flowing backward?

• aorta

• valve

• septum

• coronary artery

What causes blood pressure

• strength of muscles in the walls of capillaries

• rate of blood flowing through the heart

• speed of oxygen returning to the blood in the lungs

• force of ventricles contracting and relaxing

Job of left and right atrium?

• pumping blood to the lungs and body

• pumping blood to the atria

• receiving blood from lungs and body

• preventing blood from flowing backward

Job of left and right ventricle?

• pumping blood to the lungs and body

• pumping blood to the atria

• receiving blood from lungs and body

• preventing blood from flowing backward

What substance is brought into the body through the respiratory system?

• carbon dioxide

• oxygen

• carbon monoxide

• water

Where in the respiratory system does oxygen go into the bloodstream and carbon dioxide come out?

• trachea

• pharynx

• heart

• alveoli/ lungs

What part of the respiratory system is where oxygen "branches" into the lungs?

• bronchi

• alveoli

• trachea

• larynx