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Exercise 9. Fill in the gaps using the verbs from Exercise 8:

1. A thick central muscular wall, the septum, … the heart cavity into rightand left halves.

2. Two coronary arteries … the heart muscle with oxygen and nutrients.

3. The pulmonary veins are large blood vesselsthat … oxygenated bloodfrom the lungs to the left atrium of then heart.

4. Blood is … in the lungs.

5. The heart is … in the pericardium.

6. The right atrium … the deoxygenated blood from the body via 2 veins called the venae cavae.

7. Both atria … simultaneously, followed quickly by the simultaneous contraction of the ventricles.

8. The wall of the heart … three layers: the epicardium, the myocardium, and the endocardium.

9. The heart is a chambered muscular organ in vertebrates that … blood received from the veins into the arteries, thereby maintaining the flow of blood through the entire circulatory system.

10. This blood is transferred to the right ventricle and pumped to the lungs via the pulmonary artery to be ….

Exercise 10. Find the corresponding equivalents in the text:

М’язовий насос, складатися з 2-х передсердь та двох шлуночків, вивільняти вуглекислий газ, скорочуватись безперервно та ритмічно, велике коло кровообігу, внутрішня та зовнішня оболонки серця, більша м’язова маса, верхня та нижня камери, скорочуватися з більшою силою, розташовуватись на діафрагмі, нижні межі легенів, реберні хрящі, кисень та поживні речовини, внутрішня поверхня серця, камера серця, позбавлена кисню кров, дво- та тристулковий клапан.

Exercise 11. Translate the words in brackets:

The human heart provides a (тривалий) blood circulation through the cardiac cycle and is one of the most vital organs in the human body. It (містить) four (камери): the two (верхні камери) are called the left and right (передсердя) and two (нижні камери) are called the right and left (шлуночки). Normally the right ventricle (качає) the same blood amount into the lungs with each bit that the left ventricle pumps out.

The electric energy that stimulates the heart occurs in the (синусно-передсердний) node, which produces a definite potential and then (відправляє), sending an impulse across the atria.

Exercise 12. Match the terms with their definitions:

1. atrium

2. endocardium

3. pericardium

4. myocardium

5. ventricle

6. septum

7. valve

8. venae cavae

9. mediastinum

10. heart

a) the hollow muscular organ in vertebrates whose contractions propel the blood through the circulatory system;

b) a dividing partition between two tissues or cavities;

c) any device that shuts off, starts, regulates, or controls the flow of a fluid;

d) a cavity or chamber in the body, especially the upper chamber of each half of the heart;

e) a chamber of the heart, having thick muscular walls, that receives blood from the atrium and pumps it to the arteries;

f) the part of the thoracic cavity that lies between the lungs, containing the heart and its vessels;

g) the membranous sac enclosing the heart. It fixes the heart to the mediastinum and gives protection against infection;

h) the membrane that lines the cavities of the heart and forms part of the valves and provides protection to the valves and heart chambers;

i) the muscle tissue of the heart, which forms a thick middle layer between the outer epicardium layer and the inner endocardium layer;

j) are large veins that return deoxygenated blood from the body into the heart (the superior vena cava and the inferior vena cava) and both empty into the right atrium

Exercise 13. Make questions to the underlined words:

1. The heart beats continuously and rhythmically to send blood to the lungs.

2. Much of the heart consists of myocardium.

3. The heart muscle is supplied with oxygen by 2 coronary arteries.

4. The right atrium receives deoxygenated blood from the entire body.

5. The left atrium of the heart receives oxygenated blood from the lungs.

6. One-way valves ensure that blood flows in only 1 direction.

7. The left side of the heart must contract more forcibly than the right one.

8. Tricuspid valve lies between the right atrium and the right ventricle.

Exercise 14. Translate the words in brackets:

The human heart provides a (тривалий) blood circulation through the cardiac cycle and is one of the most vital organs in the human body. It (містить) four (камери): the two (верхні камери) are called the left and right (передсердя) and two (нижні камери) are called the right and left (шлуночки). Normally the right ventricle (качає) the same blood amount into the lungs with each bit that the left ventricle pumps out.

The electric energy that stimulates the heart occurs in the (синусно-передсердний) node, which produces a definite potential and then (відправляє), sending an impulse across the atria.

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