Cardiovascular system

Question 1

Cardiac cycle

Answer 1

the way the heart works to pump blood around the body

Question 2

Diastole

Answer 2

passive filling of the heart with blood

Question 3

How long does diastole last?

Answer 3

0.5 seconds

Question 4

Atrial systole

Answer 4

where the atria contract and force the remaining blood into the ventricles

Question 5

How long does atrial systole take?

Answer 5

0.1 seconds

Question 6

Ventricular systole

Answer 6

where the ventricles contract and force blood out through the arteries

Question 7

How long does ventricular systole last?

Answer 7

0.2 seconds

Question 8

State the order of the conduction system

Answer 8

SA node, AV node, bundle of HIS, purkinje fibers

Question 9

What does the AV node do?

Answer 9

delay the impulse for 0.1 seconds to allow atrial systole to complete

Question 10

Heart rate

Answer 10

the number of times the heart beats per minute

Question 11

Stroke volume

Answer 11

the amount of blood pumped out of the heart per beat

Question 12

Cardiac output

Answer 12

the amount of blood pumped out the heart per minute

Question 13

Chemoreceptors

Answer 13

detect changes in levels of CO2 and pH

Question 14

Proprioceptors

Answer 14

detect changes in movements at the joints

Question 15

Baroreceptors

Answer 15

detect a change in blood pressure

Question 16

Parasympathetic nerve

Answer 16

reduces heart rate

Question 17

Sympathetic nerve

Answer 17

increases heart rate

Question 18

Venous return

Answer 18

the amount of blood returning to the heart

Question 19

Muscle pump

Answer 19

contracting muscles squeeze the veins against the bones, forcing blood back to the heart

Question 20

Respiratory pumpp

Answer 20

the changes in pressure that occur in the thoracic and abdominal cavities during respiration

Question 21

Pocket valves

Answer 21

found in veins and ensure that blood only flows in one direction

Question 22

What is the equation to work out cardiac output?

Answer 22

Cardiac Output= stroke volume x heart rate

Question 23

Resting heart rate for an UNTRAINED performer

Answer 23

70-72 bpm

Question 24

sub maximal heart rate for an UNTRAINED performer

Answer 24

100-130bpm

Question 25

resting stroke volume for an UNTRAINED performer

Answer 25

70ml

Question 26

sub maximal intensity stroke volume for an UNTRAINED performer

Answer 26

100-120ml

Question 27

maximal intensity stroke volume for an UNTRAINED performer

Answer 27

100-120ml

Question 28

resting cardiac output for an UNTRAINED perfromer

Answer 28

5 l/min

Question 29

sub maximal intensity cardiac output for an UNTRAINED performer

Answer 29

10-15 l/min

Question 30

maximal intensity cardiac output for an UNTRAINED performer

Answer 30

20-30 l/min

Question 31

resting heart rate for a TRAINED performer

Answer 31

50 bpm

Question 32

sub maximal intensity heart rate for a TRAINED performer

Answer 32

95-120 bpm

Question 33

resting strove volume for a TRAINED performer

Answer 33

100 ml

Question 34

sub maximal intensity heart ate for a TRAINED performer

Answer 34

160-200 ml

Question 35

maximal intensity heart rate for a TRAINED performer

Answer 35

160-200 ml

Question 36

resting cardiac output for a TRAINED performer

Answer 36

5 l/min

Question 37

sub maximal intensity cardiac output for a TRAINED performer

Answer 37

15-20 l/min

Question 38

maximal intensity cardiac output for a TRAINED performer