Cardiovascular System

Question 1

Definition of heart rate

Answer 1

Number of times the heart beats per minute
Unit = bpm

Question 2

Definition of stroke volume

Answer 2

Amount of blood ejected from the left ventricle per beat
Units = ml

Question 3

Cardiac output definition

Answer 3

Amount of blood ejected from the left ventricle per minute
Units = l/min

Question 4

the relationship between the three

Answer 4

cardiac output = stroke volume x heart rate

Question 5

average heart rate at rest

Answer 5

70bpm

Question 6

average value for stroke volume at rest

Answer 6

70ml

Question 7

average value of cardiac output rest

Answer 7

5l/min

Question 8

heart rate value for endurance athletes

Answer 8

50bpm

Question 9

stroke volume value for endurance athletes

Answer 9

100ml

Question 10

cardiac output value for endurance athletes

Answer 10

5l/min

Question 11

definition of Bradycardia

Answer 11

heart rate below 60bpm

Question 12

what does the plasma do in the body?

Answer 12

• yellowish liquid component of blood that holds the blood cells and whole blood in suspension
• 55% of the total blood volume
• prevents blood clots as it targets nutrients which affects performance levels
• hydration is important for the plasma

Question 13

what do the platelets do in the body?

Answer 13

• component of the blood that acts to external bleeding by clumping and clotting
• prevent infection as prevent exposure
• mean athletes are less likely to get an infection and be taken out of training and performance won’t drop

Question 14

what do the red blood cells do in the body?

Answer 14

• made in the bone marrow and contain haemoglobin which contains oxygen
• also carries co2
• 4 oxygens per haemoglobin

Question 15

what do the white blood cells do in the body?

Answer 15

• cells of the immune system and fight disease
• also made in bone marrow
• prevent time of from sport and training

Question 16

does blood change?

Answer 16

the consistency will change due to training, drugs etc