HLTH 210 CARDIOVASCULAR SYSTEM EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE
2026
Cardiovascular system components - Answers heart, blood vessels, blood
Primary role of the cardiovascular system - Answers maintain homeostasis by delivering oxygen and
nutrients and removing waste
What systems does the cardiovascular system work closely with? - Answers respiratory system,
digestive system, urinary system, and lymph system
cardiovascular system functions - Answers transport blood
exchange nutrients and wastes in capillaries
maintain blood pressure
regulate where blood flows
blood transportation path - Answers heart -> arteries ->arterioles -> capillaries -> venules -> veins ->
back to heart
4 chambers of the heart - Answers 2 artria (recieve blood) (left and right)
2 ventricles (pump blood out) (right and left)
what is the heart mostly composed of - Answers myocardium (cardiac muscle)
What is the heart surrounded by - Answers pericardium
What are the two sets of valves - Answers atrioventricular valves (tricuspid & mitral)
semilunar valves (pulmonary & aortic)
Major veins - Answers vena cava (from body) (superior & inferior)
pulmonary veins (from lungs)
major arteries - Answers pulmonary artery (to lungs)
aorta (to body)
pulmonary circuit - Answers carries blood to lungs
systemic circuit - Answers carries blood to the rest of the body
What do arteries do? - Answers Carry blood away from the heart
artery = away
what are the 3 layers of the walls (arteries) - Answers thin inner epithelium
thick smooth muscle
outer connective tissue
Arterioles are small arteries that - Answers regulate blood pressure
vein function - Answers carry blood to the heart
Veins - Answers smaller than arteries
venules are small veins (recieve blood from capillaries)
may carry blood against gravity (contain valves)
blood flow - Answers highest blood pressure in arteries
blood flow slower in capillaries
blood pressure low in veins
How does blood get back to the heart? - Answers skeletal muscle contractions (push blood through)
breathing (expanding and contracting chest creates suction force in veins)
valves (prevent blood from flowing backwards)
Capillaries - Answers between arterioles and venules
walls one cell layer thick
"capillary beds" (large surface area)
exchange of materials
ability to "shut off" capillary bed
movement of blood in heart - Answers body -> superior and inferior vena cava (low oxygen) -> Right
atrium -> tricuspid valve -> right ventricle -> pulmonary semilunar valve -> pulmonary arteries -> lungs
-> pulmonary veins -> left atrium -> mitral valve -> left ventricle -> aortic semilunar valves -> all body
tissue
cardiac cycle - Answers one complete heart beat
Diastole - Answers ventricles relaxed
- blood flows into ventricles
- atria contract at end of diastole
systole - Answers ventricles contract
- AV valves close
2026
Cardiovascular system components - Answers heart, blood vessels, blood
Primary role of the cardiovascular system - Answers maintain homeostasis by delivering oxygen and
nutrients and removing waste
What systems does the cardiovascular system work closely with? - Answers respiratory system,
digestive system, urinary system, and lymph system
cardiovascular system functions - Answers transport blood
exchange nutrients and wastes in capillaries
maintain blood pressure
regulate where blood flows
blood transportation path - Answers heart -> arteries ->arterioles -> capillaries -> venules -> veins ->
back to heart
4 chambers of the heart - Answers 2 artria (recieve blood) (left and right)
2 ventricles (pump blood out) (right and left)
what is the heart mostly composed of - Answers myocardium (cardiac muscle)
What is the heart surrounded by - Answers pericardium
What are the two sets of valves - Answers atrioventricular valves (tricuspid & mitral)
semilunar valves (pulmonary & aortic)
Major veins - Answers vena cava (from body) (superior & inferior)
pulmonary veins (from lungs)
major arteries - Answers pulmonary artery (to lungs)
aorta (to body)
pulmonary circuit - Answers carries blood to lungs
systemic circuit - Answers carries blood to the rest of the body
What do arteries do? - Answers Carry blood away from the heart
artery = away
what are the 3 layers of the walls (arteries) - Answers thin inner epithelium
thick smooth muscle
outer connective tissue
Arterioles are small arteries that - Answers regulate blood pressure
vein function - Answers carry blood to the heart
Veins - Answers smaller than arteries
venules are small veins (recieve blood from capillaries)
may carry blood against gravity (contain valves)
blood flow - Answers highest blood pressure in arteries
blood flow slower in capillaries
blood pressure low in veins
How does blood get back to the heart? - Answers skeletal muscle contractions (push blood through)
breathing (expanding and contracting chest creates suction force in veins)
valves (prevent blood from flowing backwards)
Capillaries - Answers between arterioles and venules
walls one cell layer thick
"capillary beds" (large surface area)
exchange of materials
ability to "shut off" capillary bed
movement of blood in heart - Answers body -> superior and inferior vena cava (low oxygen) -> Right
atrium -> tricuspid valve -> right ventricle -> pulmonary semilunar valve -> pulmonary arteries -> lungs
-> pulmonary veins -> left atrium -> mitral valve -> left ventricle -> aortic semilunar valves -> all body
tissue
cardiac cycle - Answers one complete heart beat
Diastole - Answers ventricles relaxed
- blood flows into ventricles
- atria contract at end of diastole
systole - Answers ventricles contract
- AV valves close
