• The two separate loops in human circulatory system are – one for the _______ and other for the ______ .

Answer: lungs, organs

• Blood is pumped to lungs as well as to different parts of the body simultaneously during the:

Answer: contraction of ventricles

• Systolic pressure is measured during the:

Answer: contraction of ventricles

• Diastolic pressure is measured during the:

Answer: relaxation of ventricles

• Contraction of the right ventricle pumps blood into the:

Answer: Pulmonary artery

• In a closed circulatory system the blood is completely enclosed within:

Answer: Vessels

• Oxygenated blood is carried by:

Answer: Pulmonary vein

• In oxygenated blood one molecule of haemoglobin carries how many molecules of oxygen?

Answer: 4

• An artery is a vessel that carries blood with:

Answer: high concentration of oxygen

• Oxygen is required by the body to:

Answer: produce ATP

• The only artery which carries deoxygenated blood is supplied by blood pumped from?

Answer: right ventricle

• Contraction of left ventricle pumps blood into:

Answer: Dorsal aorta

• The blood coming from the lungs passes into:

Answer: Left auricle

• The membrane enclosing the heart is:

Answer: Pericardium

• The valve present between the left auricle and ventricle is:

Answer: Bicuspid

• Tricuspid valve is present between:

Answer:  right auricle and right ventricle

• Capillaries join to form

Answer: Venules

• Which side of the heart contains oxygenated blood?

Answer: left side

• Blood flows at high speed and high pressure in:

Answer: Arteries

• Deoxygenated blood is usually carried by?

Answer: Veins

• These blood vessels are deep seated:

Answer: Arteries

• Deoxygenated blood reaches the heart from the

Answer: Vena cava

• The main artery which carries oxygenated blood from heart to the various organs of the body is:

Answer: Aorta

• Which chamber of the heart receives deoxygenated blood from different parts of the body?

Answer: Right auricle

• Maximum oxygen is carried by:

Answer: Pulmonary vein

• Which valve prevents the blood from flowing back into left atrium?

Answer: Mitral valve

• Which chamber of the heart pumps blood to the lungs?

Answer: Right ventricle

• The “Lub” sound in your heartbeat is caused by closure of which valves?

Answer: tricuspid and bicuspid

• The Dub” sound in your heartbeat is caused by closure of which valves?

Answer: pulmonary and aortic

• The “Lub” sound in your heartbeat is caused by closure of which valves?

Answer: atrioventricular valves

• The Dub” sound in your heartbeat is caused by closure of which valves?

Answer: semilunar valves

• The atria contract and force the blood into the:

Answer: ventricles

• The _________ contract to force the blood out of the heart

Answer: ventricles

• The _______ in the heart ensure that the blood flows in the correct direction

Answer: valves

• Blood flows from the heart to the organs through the ______ and returns through the ______.

Answer: arteries, veins

• Blood flows back to the heart through the:

Answer: vena cava

• The _____ carries blood away from the heart to the various parts of the body

Answer: aorta

• If an artery become narrow then _______ is used to keep it open

Answer:  stent

• In the organs the blood flows through narrow thin walled vessels known as:

Answer: capillaries

• Arteries carry blood under

Answer: high pressure

• Veins carry blood under

Answer: low pressure

• Blood vessels which have single cell permeable walls are:

Answer: capillaries

• Blood vessels which have thick muscular and elastic walls are:

Answer: arteries

• Blood vessels which have valves to prevent back flow of blood are:

Answer: veins

• Human circulatory system is a _______ circulatory system

Answer: double

• The right and left ______ receive blood from the veins

Answer: atria

• The right and left ______ pump blood into the arteries

Answer: ventricles

• The process that takes place in the lungs is:

Answer: gas exchange

• The ______ pumps blood into the lungs

Answer: right ventricle

• The ______ pumps blood to the rest of the body

Answer: left ventricle

• The heart gets its blood supply through the

Answer: coronary arteries

• The natural resting heart rate is controlled by a group of cells present in the

Answer: right atrium

• Arteries carry blood:

Answer: away from the heart

• Veins carry blood:

Answer: to the heart

• Exchange of nutrients and oxygen with the tissues takes place in

Answer: capillaries