1. Starter Qs 1.
The diagram below shows some blood vessels within muscle tissue of an athlete. The direction of blood flow is indicated by the arrows.
a) X = artery/arteriole; Y = capillary
Name the type of blood vessels labelled X and Y (1)
Name two substances which are at a higher concentration in the blood at point P than at point S. (1)
Tissue fluid surrounds the muscle cells. Some of this fluid is reabsorbed into the bloodstream. How else is tissue fluid removed from around the muscle cells? (1)
b) oxygen, glucose, amino acids, fatty acids, glycerol, vitamins, minerals
1a) X = artery/arteriole; Y = capillary
1b) oxygen, glucose, amino acids, fatty acids, glycerol, vitamins, minerals
1c) By the lymphatic system / lymphatic vessels / lymphatic capillaries / lymph.
c) By the lymphatic system / lymphatic vessels / lymphatic capillaries / lymph.

2. Calculations
CO = HR x SV
A: 5.8/60 = 0.09 B: 6.1/68 = 0.08 C: 7.2/72 = 0.1 D: 7.6/78 = 0.09 ANSWER: C
HR x SV 80 x 120 =

3. Calculations
CO = HR x SV
The graph below shows how pulse rate and stroke volume change with the rate of oxygen uptake
What is the cardiac output when the oxygen uptake is 0.6 L/min ?
What is the cardiac output when the oxygen uptake is 1.6 L/min?
2006 old HB

4. Calculations CO = HR x SV
The graph below shows how pulse rate and stroke volume change with the rate of oxygen uptake
What is the cardiac output when the oxygen uptake is 0.6 L/min ?
When oxygen uptake = 0.6…
HR = 80 and SV = 120
BUT we need to change 120 cm3 into L (/1000)
CO = HR x SV
CO = 80 x 0.12
CO = 9.6 L/min
HR x SV 80 x 120 =

5. Calculations CO = HR x SV
The graph below shows how pulse rate and stroke volume change with the rate of oxygen uptake
What is the cardiac output when the oxygen uptake is 1.6 L/min ?
When oxygen uptake = 1.6…
HR = 110 and SV = 150
BUT we need to change 150 cm3 into L (/1000)
CO = HR x SV
CO = 110 x 0.15
CO = 16.5 L/min
HR x SV 80 x 120 =

6. Starter Qs 1. 2.

7. Quick Check - PPQs…
Answer = A
Answer = B

8. Starter Qs 1. 2.

9. The person’s heart beat is: ______ bpm
Answer = B
The person’s heart beat is: ______ bpm

10. Starter Qs
For each statement below decide if it is true or false. For every false statement, correct the underlined word:
1. Another term for the pacemaker is the atrio-ventricular node
2. The atrio-ventricular node is located in the right atrium muscular wall
3. During ventricular systole, the pressure decreases
4. During ventricular systole, the volume of blood in the heart increases
5. During diastole, the AV valves are opened.
Sino-atrial node
Junction between atria and ventricles
Diastole
Decreases

11. C A C