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WorksheetsBiology Circulatory Review
Total questions: 11
Worksheet time: 7mins
Blood pressure is a measurement of...
force applied by blood on the blood vessel walls
fluid volume in the blood vessels
force of blood on the body walls
pressure by blood on brain
Function of the circulatory system
transports oxygen and nutrients throughout the body & remove wastes like CO2 from tissues
regulate blood glucose levels
process sensory information
absorb oxygen from the air
What structure in the respiratory system is responsible for gas exchange between inhaled air & blood?
alveoli
kidney
lungs
liver
The function of valves in the heart is to
stimulate the heartbeat.
prevent the backward flow of blood.
accelerate the flow of blood.
serve as a cushion to prevent friction.
Which component of blood is directly responsible for transporting oxygen to body cells?
plasma
red blood cells
platelets
white blood cells
What happens when concentration of oxygen is higher in the alveoli than in the blood?
Diffusion of O2 in the alveoli
Diffusion of O2 into blood
Is concentration of CO2 is higher in inhaled air or exhaled air?
Inhaled air!
Exhaled air! CO2 is a waste product from cells
At the bottom of the chest cavity is a large, flat muscle called the _____________.
biceps
spleen
diaphragm
umbilicus
Why do our cells need oxygen?
needed to copy DNA
needed by lysosome to recycle organelles
needed by the mitochondria to make energy (ATP)
not needed by cells
Pulmonary circulation carries oxygen poor blood to the ______________ and back.
brain
lungs
kidneys
stomach
______________ circulation carries oxygenated blood to the rest of body.
Systemic
Pulmonary
