Cardiac Cycle
BIOXI18: BODY FLUIDS AND CIRCULATION

339198 If someone's heart has a stroke volume of \(70 \mathrm{ml}\) and a heart rate of 90 beat/minute, the cardiac output would be

1 \(0.71 \mathrm{~L} / \mathrm{min}\)
2 \(6.3 \mathrm{~L} / \mathrm{min}\)
3 \(1.28 \mathrm{~mL} / \mathrm{min}\)
4 \(70 \mathrm{ml} / \mathrm{min}\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339212 Which one of the following statements is correct?

1 The tricuspid and the biscuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
2 Blood moves freely from atrium to the ventricle during joint diastole.
3 Increased ventricular pressure causes closing of the semilunar valves.
4 The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
BIOXI18: BODY FLUIDS AND CIRCULATION

339199 Choose the incorrect answer regarding pulse rate:
i. The normal pulse for healthy adults ranges from 60 to 100 beats per minute.
ii. The pulse rate does not fluctuate and increase with exercise illness, injury and emotions.
iii. Female aged 12 and older in general tend to have faster heart rates than males.
iv. Athletes such as runners, who do a lot of cardiovascular conditioning may have heart rates near 40 beats per minute and experience no problems.

1 ii only
2 \(\mathrm{i}\) and iii
3 iii and iv
4 All of the above
BIOXI18: BODY FLUIDS AND CIRCULATION

339200 Which one of the following will be the cardiac output (in litres per minute) of a heart that has a stroke volume of 0.07 litres and is beating at a rate of 90 per minute?

1 \(63.30\)
2 \(63.00\)
3 \(00.63\)
4 \(06.30\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339201 Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1 AV node receives signal from SA node
2 AV valves open
3 Ventricular walls vibrate due to gushing in of blood from atria
4 Semilunar valves close down after the blood flows into vessels from ventricles
BIOXI18: BODY FLUIDS AND CIRCULATION

339198 If someone's heart has a stroke volume of \(70 \mathrm{ml}\) and a heart rate of 90 beat/minute, the cardiac output would be

1 \(0.71 \mathrm{~L} / \mathrm{min}\)
2 \(6.3 \mathrm{~L} / \mathrm{min}\)
3 \(1.28 \mathrm{~mL} / \mathrm{min}\)
4 \(70 \mathrm{ml} / \mathrm{min}\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339212 Which one of the following statements is correct?

1 The tricuspid and the biscuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
2 Blood moves freely from atrium to the ventricle during joint diastole.
3 Increased ventricular pressure causes closing of the semilunar valves.
4 The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
BIOXI18: BODY FLUIDS AND CIRCULATION

339199 Choose the incorrect answer regarding pulse rate:
i. The normal pulse for healthy adults ranges from 60 to 100 beats per minute.
ii. The pulse rate does not fluctuate and increase with exercise illness, injury and emotions.
iii. Female aged 12 and older in general tend to have faster heart rates than males.
iv. Athletes such as runners, who do a lot of cardiovascular conditioning may have heart rates near 40 beats per minute and experience no problems.

1 ii only
2 \(\mathrm{i}\) and iii
3 iii and iv
4 All of the above
BIOXI18: BODY FLUIDS AND CIRCULATION

339200 Which one of the following will be the cardiac output (in litres per minute) of a heart that has a stroke volume of 0.07 litres and is beating at a rate of 90 per minute?

1 \(63.30\)
2 \(63.00\)
3 \(00.63\)
4 \(06.30\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339201 Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1 AV node receives signal from SA node
2 AV valves open
3 Ventricular walls vibrate due to gushing in of blood from atria
4 Semilunar valves close down after the blood flows into vessels from ventricles
BIOXI18: BODY FLUIDS AND CIRCULATION

339198 If someone's heart has a stroke volume of \(70 \mathrm{ml}\) and a heart rate of 90 beat/minute, the cardiac output would be

1 \(0.71 \mathrm{~L} / \mathrm{min}\)
2 \(6.3 \mathrm{~L} / \mathrm{min}\)
3 \(1.28 \mathrm{~mL} / \mathrm{min}\)
4 \(70 \mathrm{ml} / \mathrm{min}\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339212 Which one of the following statements is correct?

1 The tricuspid and the biscuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
2 Blood moves freely from atrium to the ventricle during joint diastole.
3 Increased ventricular pressure causes closing of the semilunar valves.
4 The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
BIOXI18: BODY FLUIDS AND CIRCULATION

339199 Choose the incorrect answer regarding pulse rate:
i. The normal pulse for healthy adults ranges from 60 to 100 beats per minute.
ii. The pulse rate does not fluctuate and increase with exercise illness, injury and emotions.
iii. Female aged 12 and older in general tend to have faster heart rates than males.
iv. Athletes such as runners, who do a lot of cardiovascular conditioning may have heart rates near 40 beats per minute and experience no problems.

1 ii only
2 \(\mathrm{i}\) and iii
3 iii and iv
4 All of the above
BIOXI18: BODY FLUIDS AND CIRCULATION

339200 Which one of the following will be the cardiac output (in litres per minute) of a heart that has a stroke volume of 0.07 litres and is beating at a rate of 90 per minute?

1 \(63.30\)
2 \(63.00\)
3 \(00.63\)
4 \(06.30\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339201 Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1 AV node receives signal from SA node
2 AV valves open
3 Ventricular walls vibrate due to gushing in of blood from atria
4 Semilunar valves close down after the blood flows into vessels from ventricles
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BIOXI18: BODY FLUIDS AND CIRCULATION

339198 If someone's heart has a stroke volume of \(70 \mathrm{ml}\) and a heart rate of 90 beat/minute, the cardiac output would be

1 \(0.71 \mathrm{~L} / \mathrm{min}\)
2 \(6.3 \mathrm{~L} / \mathrm{min}\)
3 \(1.28 \mathrm{~mL} / \mathrm{min}\)
4 \(70 \mathrm{ml} / \mathrm{min}\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339212 Which one of the following statements is correct?

1 The tricuspid and the biscuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
2 Blood moves freely from atrium to the ventricle during joint diastole.
3 Increased ventricular pressure causes closing of the semilunar valves.
4 The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
BIOXI18: BODY FLUIDS AND CIRCULATION

339199 Choose the incorrect answer regarding pulse rate:
i. The normal pulse for healthy adults ranges from 60 to 100 beats per minute.
ii. The pulse rate does not fluctuate and increase with exercise illness, injury and emotions.
iii. Female aged 12 and older in general tend to have faster heart rates than males.
iv. Athletes such as runners, who do a lot of cardiovascular conditioning may have heart rates near 40 beats per minute and experience no problems.

1 ii only
2 \(\mathrm{i}\) and iii
3 iii and iv
4 All of the above
BIOXI18: BODY FLUIDS AND CIRCULATION

339200 Which one of the following will be the cardiac output (in litres per minute) of a heart that has a stroke volume of 0.07 litres and is beating at a rate of 90 per minute?

1 \(63.30\)
2 \(63.00\)
3 \(00.63\)
4 \(06.30\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339201 Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1 AV node receives signal from SA node
2 AV valves open
3 Ventricular walls vibrate due to gushing in of blood from atria
4 Semilunar valves close down after the blood flows into vessels from ventricles
BIOXI18: BODY FLUIDS AND CIRCULATION

339198 If someone's heart has a stroke volume of \(70 \mathrm{ml}\) and a heart rate of 90 beat/minute, the cardiac output would be

1 \(0.71 \mathrm{~L} / \mathrm{min}\)
2 \(6.3 \mathrm{~L} / \mathrm{min}\)
3 \(1.28 \mathrm{~mL} / \mathrm{min}\)
4 \(70 \mathrm{ml} / \mathrm{min}\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339212 Which one of the following statements is correct?

1 The tricuspid and the biscuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
2 Blood moves freely from atrium to the ventricle during joint diastole.
3 Increased ventricular pressure causes closing of the semilunar valves.
4 The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
BIOXI18: BODY FLUIDS AND CIRCULATION

339199 Choose the incorrect answer regarding pulse rate:
i. The normal pulse for healthy adults ranges from 60 to 100 beats per minute.
ii. The pulse rate does not fluctuate and increase with exercise illness, injury and emotions.
iii. Female aged 12 and older in general tend to have faster heart rates than males.
iv. Athletes such as runners, who do a lot of cardiovascular conditioning may have heart rates near 40 beats per minute and experience no problems.

1 ii only
2 \(\mathrm{i}\) and iii
3 iii and iv
4 All of the above
BIOXI18: BODY FLUIDS AND CIRCULATION

339200 Which one of the following will be the cardiac output (in litres per minute) of a heart that has a stroke volume of 0.07 litres and is beating at a rate of 90 per minute?

1 \(63.30\)
2 \(63.00\)
3 \(00.63\)
4 \(06.30\)
BIOXI18: BODY FLUIDS AND CIRCULATION

339201 Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1 AV node receives signal from SA node
2 AV valves open
3 Ventricular walls vibrate due to gushing in of blood from atria
4 Semilunar valves close down after the blood flows into vessels from ventricles