Question

Ex; 2 p. 45 . Complete the sentence using the word from the box. muscle arteries right ventricle contraction veins septum left ventricle valve waste right atrium left atrium circulation 1. The heart is a ........,which is about the size of your fist. 2. The ....... receives oxygenated blood from the lungs. 3. The ........receives deoxygenated blood from the venae cavae. 4. The ........receives blood from the pulmonary vein. 5. The ........ pumps blood received from the venae cavae 6. A thick wall of muscle running down the middle of the heart is called the ....... 7. Blood pressure closes ...… so preventing backflow. 8. .......carry blood away from the heart . 9. .......carry blood back to the heart.

Answer 1

Ответ:

1) muscle

2)left atrium

3)right atrium

4)

5)

6)septum

7)

8)arteries

9)veins

остальные слова понять не могу, т.к. не вижу запятых, простите

Answer 2

1. The heart is a muscle, which is about the size of your fist.
2. The left atrium receives oxygenated blood from the lungs.
3. The right atrium receives deoxygenated blood from the venae cavae.
4. The left ventricle receives blood from the pulmonary vein.
5. The left ventricle pumps blood received from the venae cavae.
6. A thick wall of muscle running down the middle of the heart is called the septum.
7. Blood pressure closes valves so preventing backflow.
8. Arteries carry blood away from the heart.
9. Veins carry blood back to the heart.