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WorksheetsIB SEHS Topic 2 - Exercise Physiology Topic Test
Total questions: 34
Worksheet time: 2hrs 56mins
Which term is defined as the volume of air breathed in and out in one breath?
Pulmonary Ventilation
Tidal volume
Vital Capacity
Residual volume
What is the action of the diaphragm and the alveolar pressure relative to the atmospheric pressure that cause exhalation?
Diaphragm contracts and the alveolar pressure is higher than the atmospheric pressure
Diaphragm relaxes and the alveolar pressure is higher than the atmospheric pressure
Diaphragm contracts and the alveolar pressure is lower than the atmospheric pressure
Diaphragm relaxes and the alveolar pressure is lower than the atmospheric pressure
What is vital capacity?
Inspiratory reserve volume plus total lung capacity
Total lung capacity minus residual volume
Tidal volume plus inspiratory reserve volume
Residual volume minus expiratory reserve volume
Which is a principal structure of the ventilatory system?
capillary
bronchiole
haemoglobin
pulmonary artery
What is residual volume?
Volume of air in the lungs after maximum inhalation
Inflow and outflow of air between the atmosphere and the lungs
Volume of air still contained in the lungs after maximal exhalation
Additional inspired air over and above tidal volume
Which structure is responsible for moistening air entering the ventilatory system?
Bronchi
Larynx
Pharynx
Nose
Which feedback mechanisms are associated with the chemical control of ventilation during exercise?
Lung stretch receptors
Muscle proprioreceptors
Increases in blood acidity levels
Increases in temperature
Where is haemoglobin located?
In white blood cells
In platelets
In muscle cells
In red blood cells
What factors may cause ventilation to increase during exercise?
Decreased oxygen levels and decreased blood acidity
Decreased carbon dioxide levels and increased blood acidity
Increased carbon dioxide levels and increased blood acidity
Increased oxygen levels and decreased blood acidity
What does the elevated breathing rate after exercise allow the body to do?
To stimulate the peripheral chemoreceptors
To increase the pH of the blood
To trigger the Hering-Breuer reflex
To stimulate muscle proprioreceptors
What describes the sequence of excitation of the heart muscle?
Sinoatrial node → atrioventricular node → ventricles
Atrioventricular node → ventricles → sinoatrial node
Ventricles → atrioventricular node → sinoatrial node
Ventricles → atrioventricular node → sinoatrial node
What describes the effect of exercise on cardiac output?
Stroke volume increases and heart rate increases
Stroke volume increases and heart rate decreases
Stroke volume decreases and heart rate increases
Stroke volume decreases and heart rate decreases
What cardiovascular adaptations can result from endurance training?
Increased left ventricular volume and increased capillarization
Decreased left ventricular volume and increased capillarization
Decreased left ventricular volume and decreased arterio-venous oxygen difference
Increased left ventricular volume and decreased arterio-venous oxygen difference
Which component of blood is greatest by volume?
Electrolytes
Plasma
Erythrocytes
Leucocytes
How does the heart meet the demand for oxygenated blood during physical activity?
Increasing cardiac output, decreasing stroke volume, increasing heart rate
Decreasing cardiac output, decreasing stroke volume, decreasing heart rate
Increasing cardiac output, increasing stroke volume, increasing heart rate
Decreasing cardiac output, increasing stroke volume, increasing heart rate
What does diastolic blood pressure measure?
The force exerted by blood on arterial walls during ventricular contraction
The force exerted by blood on venous walls during ventricular relaxation
The force exerted by blood on arterial walls during ventricular relaxation
The force exerted by blood on venous walls during ventricular contraction
Which demonstrates how blood is redistributed to the working muscles during exercise?
Pre-capillary sphincters of the working muscles constrict, and the arterioles of the working muscles dilate
Pre-capillary sphincters of the working muscles dilate, and the arterioles of the working muscles constrict
Pre-capillary sphincters of the working muscles dilate, and the arterioles of the working muscles dilate
Pre-capillary sphincters of the working muscles constrict, and the arterioles of the working muscles constrict
Which defines maximal oxygen consumption?
Maximum volume of oxygen inhaled and used per minute
Maximum volume of air exhaled after a maximum inhalation
Maximum volume of oxygenated blood ejected per minute
Maximum volume of oxygen breathed in or out per breath
Which is the function of platelets?
Clot blood
Deliver oxygen
Produce antibodies
Carry carbon dioxide
What is the structure labelled X in the diagram below?
Bicuspid valve
Tricuspid valve
Aortic valve
Pulmonary valve
Explain the cause of the blood pressure response shown in the graph (3 marks)
Describe how breathing is controlled during exercise (5 marks)
Explain how the mechanics of exhalation change from rest to exercise (6 marks)
Describe the exchange of carbon dioxide from the bloodstream during exercise (4 marks)
State one component transported by blood (1 mark)
Explain how cardiac output is maintained during prolonged exercise (3 marks)
Define systolic blood pressure (1 mark)
Predict the effect of a 100 m sprint on a runner’s systolic and diastolic blood pressure (2 marks)
Describe the mechanics of ventilation during high intensity interval training (6 marks)
Describe long-term vascular adaptations to endurance training (4 marks)
Explain the redistribution of blood during exercise (3 marks)
Describe how cardiovascular drift takes place (3 marks)
Describe the path taken by blood from the right ventricle to the left ventricle (3 marks)
Distinguish how cardiac output, stroke volume and resting heart rate would differ between trained and untrained women during exercise (3 marks)
