Circulatory System - Page 4
Questions
- What causes the heart to beat fast when a person is frightened?
- Why are veins important?
- Is it normal for your veins to appear larger during pregnancy? If so, why?
- What are enzyme cascades?
- How does alcohol affect the heart?
- How does pulse differ from blood pressure?
- Is fibrinogen converted to fibrin via thrombin?
- What is the hepatic portal system?
- What happens during open heart surgery? Do they have to stop the heart?
- How many layers are in the walls of the heart?
- What are the layers of the heart, from the inside to the outside?
- What are the coronary arteries?
- What hormones does the heart secrete?
- Why is heart disease so common, especially in elderly people?
- Which side of the heart gets oxygen rich blood? Which part gets blood without oxygen?
- What are the symptoms of a blood clot?
- Miguel is a 25-year-old jogger with a target heart rate of 125 bpm. His resting pulse is 70 bpm. His blood volume is approximately 6.8 litres. At rest, his cardiac output is 6.3 litres/minute and his EDV is 150 ml. What is his stroke volume at rest?
- How can heart attacks be prevented?
- How does the human body prevent blood clotting in the normal vascular system?
- When fluid is collected by the lymphatic system, it is returned to what system?