A: Fetal heart
B: Heart valve
C: Stationary liver tissue
D: Blood flow
举一反三
- Doppler ultrasound can be used to display A: Fetal heart beat B: Rear artifacts C: Blood flow
- If the _______ stops beating, no blood can flow through the body.() A: heart B: lungs
- What are the names for the tubes in your body that carry blood from your heart to the rest of your body.
- In a quiet state, the body's organs or tissues that produce the<br/>highest amount of heat are () A: Heart B: Brain C: Liver D: Kidney E: Skeletal muscle
- The engine is the ( ) of an automobile. It burns fuel to produce power. A: body B: heart
内容
- 0
What<br/>is heart failure? () A: condition in which the heart stops beating B: condition in which the heart cannot pump enough blood to meet the<br/>body's needs C: heart<br/>attack D: condition in which the patient experiences chest pain E: none<br/>of above
- 1
This makes it possible for the human body to accept the heart of a pig in a transplantoperation.
- 2
（ ） acts as a pump to maintain a constant circulation to blood throughout the body. A: heart B: kidneys C: lungs D: liver
- 3
Valve in the heart enables it to function by opening and closing, preventing blood from passing through. A: 正确 B: 错误
- 4
How is the embolism of a thrombotic stroke formed? ① Blood flow slows down. ② A sudden change in heart rhythm prevents the upper chambers of the heart from contracting normally. ③ Platelets, clotting factors, and fibrin stick together. ④ The clot can be carried up towards the arteries and blood vessels supplying the brain until it can’t squeeze through. A: ②④③① B: ②①③④ C: ②①④③ D: ①②④③