A Level PE AQA Cardio Quiz

What is venous return and how does it contribute to cardiovascular function?

• The flow of lymphatic fluid in the body, contributing to immune function.

• The flow of blood back to the heart from the systemic circulation, contributing to maintaining cardiac output and blood pressure.

• The flow of blood from the heart to the lungs, contributing to oxygenation of the blood.

• The flow of blood from the arteries to the capillaries, contributing to nutrient delivery.

Explain the factors that affect venous return in the human body.

• Skeletal muscle pump, respiratory pump, sympathetic vasoconstriction, venous valves, and blood volume

• Wearing a hat, taking a hot shower, and listening to music

• Playing video games, using a laptop, and sitting in a chair

• Drinking coffee, eating chocolate, and watching TV

Describe the structure of the heart and its role in the cardiovascular system.

• The heart has five chambers: three atria and two ventricles. Its role is to pump blood to the brain and circulate deoxygenated blood to the body.

• The heart has three chambers: one atrium and two ventricles. Its role is to pump blood only to the lungs for oxygenation.

• The heart has two chambers: one atrium and one ventricle. Its role is to pump blood to the liver and circulate oxygenated blood to the kidneys.

• The heart has four chambers: two atria and two ventricles. Its role is to pump blood throughout the body and circulate oxygenated blood to the body and deoxygenated blood to the lungs for oxygenation.

What are the different chambers of the heart and their functions?

• Left chamber, right chamber, upper chamber, lower chamber

• Left atrium, left ventricle, right atrium, and right ventricle; their functions include receiving and pumping blood to the rest of the body (ventricles) and receiving blood from the body and lungs (atria).

• Left ventricle, right ventricle, upper atrium, lower atrium

• Front atrium, back atrium, upper ventricle, lower ventricle

Explain the function of the vascular system in the human body.

• Transporting blood, nutrients, and oxygen to the body's tissues and organs, as well as removing waste products and carbon dioxide.

• Pumping air into the lungs for breathing

• Regulating body temperature

• Digesting food in the stomach

How does the vascular system contribute to the regulation of blood pressure?

• By increasing heart rate

• By producing more red blood cells

• By constricting or dilating blood vessels

• By regulating body temperature

What is CV drift and how does it impact cardiovascular performance during prolonged exercise?

• CV drift positively impacts cardiovascular performance during prolonged exercise.

• CV drift negatively impacts cardiovascular performance during prolonged exercise.

• CV drift has no impact on cardiovascular performance during prolonged exercise.

• CV drift only impacts respiratory performance during prolonged exercise.

Discuss the effects of CV drift on an athlete's performance during endurance activities.

• Increased fatigue and reduced efficiency

• Decreased fatigue and improved efficiency

• Improved speed and increased efficiency

• No impact on fatigue or efficiency

Explain the process of diffusion in the context of the cardiovascular system.

• Diffusion only occurs in the lungs, not in the cardiovascular system

• Diffusion is not a process that occurs in the cardiovascular system

• The movement of molecules from an area of high concentration to an area of low concentration

• The movement of molecules from an area of low concentration to an area of high concentration

How does diffusion facilitate the exchange of gases and nutrients in the body?

• Diffusion has no effect on the exchange of gases and nutrients in the body.

• Diffusion causes gases and nutrients to move from areas of low concentration to areas of high concentration.

• Diffusion only works for solid particles, not gases and nutrients.

• Diffusion allows gases and nutrients to move from areas of high concentration to areas of low concentration.