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BIOL 2458 LAB PRACTICAL 1 2026
LATEST QUESTIONS AND ANSWERS| ACE
YOUR GRADES.
Atrioventricular valves - correct answer -Valves located between
the atrial and ventricular chambers on each side of the heart,
prevent backflow into the atria when the ventricles are
contracting.
Right AV (tricuspid) valve - correct answer -prevents backflow of
blood from right ventricle to right atrium
Left AV valve (bicuspid/mitral) - correct answer -located between
the left atrium and left ventricle. Is the only heart valve with two
cusps.
Semilunar valves prevent - correct answer -blood exiting from
the ventricles from flowing back into the heart
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Pulmonary valve is located - correct answer -in the right ventricle
and connects the heart to the pulmonary artery leading to the
lungs.
Aortic valve is located - correct answer -in the left ventricle and
connect the heart to the aorta.
Chordae tenineae "heart strings" - correct answer -tendon-like
strands of connective tissue, they run from the free edges of the
valve cusps and attach on the ventricular wall to papillary
muscles.
Papillary muscles - correct answer -small projections of cardiac
muscle
When ventricles contract (systole) - correct answer -increased
blood pressure with the chambers forces the cusps upward and
together thereby closing the valve.
Blood in the right atria is pumped to the right ventricle through the
tricuspid valve. This blood is - correct answer -deoxygenated
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From the right ventricle blood is pumped out of the pulmonary
valve into the pulmonary arteries, which flow to the lungs. The
blood is still - correct answer -deoxygenated
The blood drops off CO2 and picks up oxygen in the lungs and
then flows into the pulmonary veins. The blood is now - correct
answer -oxygenated
From the pulmonary veins the blood flows into the left atria. The
blood is - correct answer -still oxygenated
Blood in the left atria is pumped into the left ventricle through the
bicuspid valve. The blood is - correct answer -oxygenated
From the left ventricle blood is pumped out of the aortic valve into
the aorta. The blood is - correct answer -oxygenated
BIOL 2458 LAB PRACTICAL 1 2026
LATEST QUESTIONS AND ANSWERS| ACE
YOUR GRADES.
Atrioventricular valves - correct answer -Valves located between
the atrial and ventricular chambers on each side of the heart,
prevent backflow into the atria when the ventricles are
contracting.
Right AV (tricuspid) valve - correct answer -prevents backflow of
blood from right ventricle to right atrium
Left AV valve (bicuspid/mitral) - correct answer -located between
the left atrium and left ventricle. Is the only heart valve with two
cusps.
Semilunar valves prevent - correct answer -blood exiting from
the ventricles from flowing back into the heart
, Page | 2
Pulmonary valve is located - correct answer -in the right ventricle
and connects the heart to the pulmonary artery leading to the
lungs.
Aortic valve is located - correct answer -in the left ventricle and
connect the heart to the aorta.
Chordae tenineae "heart strings" - correct answer -tendon-like
strands of connective tissue, they run from the free edges of the
valve cusps and attach on the ventricular wall to papillary
muscles.
Papillary muscles - correct answer -small projections of cardiac
muscle
When ventricles contract (systole) - correct answer -increased
blood pressure with the chambers forces the cusps upward and
together thereby closing the valve.
Blood in the right atria is pumped to the right ventricle through the
tricuspid valve. This blood is - correct answer -deoxygenated
, Page | 3
From the right ventricle blood is pumped out of the pulmonary
valve into the pulmonary arteries, which flow to the lungs. The
blood is still - correct answer -deoxygenated
The blood drops off CO2 and picks up oxygen in the lungs and
then flows into the pulmonary veins. The blood is now - correct
answer -oxygenated
From the pulmonary veins the blood flows into the left atria. The
blood is - correct answer -still oxygenated
Blood in the left atria is pumped into the left ventricle through the
bicuspid valve. The blood is - correct answer -oxygenated
From the left ventricle blood is pumped out of the aortic valve into
the aorta. The blood is - correct answer -oxygenated
