Circulatory System — Anatomy & Physiology 练习题

参考答案

1. 1.
   The left atrium receives oxygenated blood from the lungs via the pulmonary veins.

   最终答案： c) Left atrium
2. 2.
   最终答案： The pulmonary arteries carry deoxygenated blood from the right ventricle to the lungs for gas exchange (oxygenation).
3. 3.
   最终答案： 1. Superior vena cava, 2. Right atrium, 3. Pulmonary artery, 4. Aorta, 5. Pulmonary vein, 6. Mitral valve, 7. Aortic valve, 8. Left ventricle
4. 4.
   Capillaries are one cell thick to allow diffusion of gases and nutrients.

   最终答案： c) Capillaries

1. 5.
   最终答案： Superior vena cava $\rightarrow$ right atrium $\rightarrow$ tricuspid valve $\rightarrow$ right ventricle $\rightarrow$ pulmonary valve $\rightarrow$ pulmonary artery $\rightarrow$ lungs $\rightarrow$ pulmonary vein $\rightarrow$ left atrium $\rightarrow$ mitral valve $\rightarrow$ left ventricle $\rightarrow$ aortic valve $\rightarrow$ aorta.
2. 6.
   Red blood cells contain hemoglobin, which binds oxygen in the lungs and releases it to tissues.

   最终答案： b) Carrying oxygen
3. 7.
   最终答案： Systole is the contraction phase of the cardiac cycle, when the heart pumps blood out. Diastole is the relaxation phase, when the heart fills with blood.
4. 8.
   最终答案： a) Right atrium $\rightarrow$ right ventricle $\rightarrow$ lungs $\rightarrow$ left atrium $\rightarrow$ left ventricle $\rightarrow$ body
5. 9.
   最终答案： The SA node is the natural pacemaker of the heart. It generates electrical impulses that initiate each heartbeat and set the heart rate.

1. 10.
   最终答案： Aorta: Artery, Oxygenated; Pulmonary artery: Artery, Deoxygenated; Pulmonary vein: Vein, Oxygenated; Superior vena cava: Vein, Deoxygenated