Ex. 19. Make the following sentences negative. Then give the right information.

MODEL:

The heart consists of three (four) chambers.

The heart doesn’t consist of three chambers. It consists of four chambers.

 

1. The muscular structure of the heart consists of atrioventricular (fibrous) bands. 2. The vascular system has three groups of arteries (vessels). 3. The vessels carrying blood to and from the tissues of the body compose the endocrine (general) system. 4. The heart contracts to pump blood through the vessels of the head (body). 5. The heart of a healthy person pumps about 7200 L of blood each month (day).

 

Ex. 20. Insert the missing words:

1. The heart is a hollow _. 2. It is _ in the thoracic cavity. 3. The heart is responsible for the _ of the blood. 4. The heart is an extraordinary _. 5. The heart makes 72 _ per minute. 6. The heart _ of four chambers. 7. Each chamber is formed by _. 8. The _ chamber is called a ventricle and the upper _ is called an atrium. 9. The cardiac chambers are _ by valves. 10. Between the right _ and the right ventricle there is a _ valve. 11. The mitral (or bicuspid) valve _ the left atrium from the left ventricle. 12. The left ventricle is separated from the right ventricle by the _ septum. 13. The right ventricle pumps _ into the lungs. 14. From the lungs, blood enters the left _ and flows into the left _. 15. The left ventricle pumps _ blood into the aorta for delivery to the body’s _. 16. The heart is surrounded by _.

 

Ex. 21. A. Try to organize the information of the text in table:

Part of the heart	Definition
atrium	the upper chamber of the heart
ventricle
tricuspid valve
mitral (bicuspid) valve
interventricular septum
epicardium
myocardium
endocardium

 

B. Make up sentences using the data of table and the following model:

MODEL:

Atrium is the upper chamber. or The upper chamber is called an atrium.

 

Ex. 22. Insert the missing words:

	right atrium	… septum	left atrium
… valve		HEART		… valve
	right ventricle		left ventricle
		… septum

 

Ex. 23. Read the following definitions and choose the proper terms from the box:

1. Cavities or chambers such as the upper chambers of the heart, which receive blood from veins and pass the blood to the ventricles. 2. One of two lower chambers of the heart. 3. Pertaining to the lungs. 4. Heart valve between the right atrium and the right ventricle. 5. Heart valve that allows oxygenated blood to move into the left ventricle from the left atrium and prevents the reverse flow. 6. Blood vessel that carries blood back to the heart. 7. Blood vessel that carries blood from the heart to other tissues of the body.

Pulmonary; artery; tricuspid valve; atria; ventricle; vein; mitral valve.