PBS 4.1 Study Guide Exam Questions And
Answers
What are the structures that make up the human heart & how are
they organized? -
correct answer ✅Structures of the heart are chambers, valves,
arteries & veins.
Chambers:4 parts called right/left atrium, & right/left ventricle
Valves: tricuspid, mitral(bicuspid), aortic, pulmonary
Arteries: pulmonary & aorta(biggest)
Veins: superior/inferior vena cava
How do the heart & lungs work together to pick up & deliver
oxygen to the cells? -
correct answer ✅Left side(systemic pump) pumps oxygenated
blood to the body. Right side(pulmonary system) pumps
deoxygenated blood to the lungs to get oxygenated
What is the pathway that blood takes as it passes through the
heart? -
correct answer ✅After R atrium, deoxygenated blood passes
through tricuspid valve into R ventricle. It will pass through
pulmonary valve into the pulmonary artery through which it will
travel & end up in capillaries surrounding alveoli of the lung.
Oxygen diffuses through the wads of the alveoli. The oxygenated
blood will then travel through the pulmonary valve & enter the L
, PBS 4.1 Study Guide Exam Questions And
Answers
atrium. Pass through mitral valve into L ventricle & pass through
aortic valve into the aorta. Then travels to deoxygenated cells in
body where oxygen will leave in order to enter deoxygenated cells.
Deoxygenated blood travels to superior vena cava or inferior vena
cava back to R atrium
What is the function of the valves in the heart? -
correct answer ✅Mitral, tricuspid, aortic & pulmonary allow blood
flow in 1 direction, determine pathway of blood, valves are either
open or closed & they help to prevent the back flow of blood
How does the structure of arteries & veins relate to their function?
-
correct answer ✅Arteries are thick & muscular, walls that
transport blood away from heart. Pulmonary artery carries
deoxygenated blood to the lungs. Veins are thin walls w/low blood
pressure flow. Pulmonary veins carries blood to the whole body.
Deliver oxygenated blood from lungs to heart via left atrium
Which chamber of the heart is most muscular & why -
correct answer ✅Left ventricle because its in charge of pumping
blood through aorta. This job is what gives the rest of blood to the
Answers
What are the structures that make up the human heart & how are
they organized? -
correct answer ✅Structures of the heart are chambers, valves,
arteries & veins.
Chambers:4 parts called right/left atrium, & right/left ventricle
Valves: tricuspid, mitral(bicuspid), aortic, pulmonary
Arteries: pulmonary & aorta(biggest)
Veins: superior/inferior vena cava
How do the heart & lungs work together to pick up & deliver
oxygen to the cells? -
correct answer ✅Left side(systemic pump) pumps oxygenated
blood to the body. Right side(pulmonary system) pumps
deoxygenated blood to the lungs to get oxygenated
What is the pathway that blood takes as it passes through the
heart? -
correct answer ✅After R atrium, deoxygenated blood passes
through tricuspid valve into R ventricle. It will pass through
pulmonary valve into the pulmonary artery through which it will
travel & end up in capillaries surrounding alveoli of the lung.
Oxygen diffuses through the wads of the alveoli. The oxygenated
blood will then travel through the pulmonary valve & enter the L
, PBS 4.1 Study Guide Exam Questions And
Answers
atrium. Pass through mitral valve into L ventricle & pass through
aortic valve into the aorta. Then travels to deoxygenated cells in
body where oxygen will leave in order to enter deoxygenated cells.
Deoxygenated blood travels to superior vena cava or inferior vena
cava back to R atrium
What is the function of the valves in the heart? -
correct answer ✅Mitral, tricuspid, aortic & pulmonary allow blood
flow in 1 direction, determine pathway of blood, valves are either
open or closed & they help to prevent the back flow of blood
How does the structure of arteries & veins relate to their function?
-
correct answer ✅Arteries are thick & muscular, walls that
transport blood away from heart. Pulmonary artery carries
deoxygenated blood to the lungs. Veins are thin walls w/low blood
pressure flow. Pulmonary veins carries blood to the whole body.
Deliver oxygenated blood from lungs to heart via left atrium
Which chamber of the heart is most muscular & why -
correct answer ✅Left ventricle because its in charge of pumping
blood through aorta. This job is what gives the rest of blood to the
