V. Speaking

1. Learn the words, pay attention to pronunciation.

soul - душа. E.g. SOS means "save our souls".

heart - серце. E.g. You took my heart and soul.

hollow - порожнистий. E.g. The stomach is a hollow organ.

beat - удар. E.g. You made some beats in the game.

heartbeat - биття серця; пульсація

time - час; раз. E.g. Do it two times a week.

disease - хвороба. E.g. Heart diseases are dangerous.

regular - правильний; постійний

contraction - скорочення. E.g. Heart contractions were frequent.

regimen - режим; дієта E.g. You must keep your regimen.

chamber - камера

atrium - передсердя

ventricle - шлуночок

artery - артерія

vein - вена

capillary - капіляр

blood - кров

vessel - судина. E.g. Blood vessels are veins, arteries and capillaries.

septum - перегородка

valve - клапан

mitral - митральний

tricuspid - тристулковий

circulation - циркуляція. E.g. There are two blood circulations - greater and lesser.

2. Look at the picture of the heart and learn its structure.

3. Read the text about the heart and retell it.

Heart (Part 1)

The heart is a hollow, muscular organ, that pumps the blood throughout the body. It lies behind the breastbone between the organs of the chest. It works during the whole life. It makes beats. A heartbeat is a rhythmic contraction of the heart muscle. When a person is at rest, his heart makes usually 60-90 beats per minute.

You can control the work of your heart taking your pulse. You can strengthen your heart, protect it from diseases by regular regimen and exercises.

The human heart (Fig. 10-1) has four chambers through which the blood passes. The heart has left and right atriums (the upper part) and left and right ventricles (the lower part). The septum divides the left and right parts. Between the left atrium and ventricle there is the mitral valve. Between the right atrium and the ventricle there is the tricuspid valve. Besides there is a pulmonary valve and an aortic valve at the largest blood vessels which go out of the heart. These one-way valves direct the movement of the blood through the four chambers of the heart. The blood flows to the entire body by means of arteries, veins and capillaries. There are two blood circulations in the human body - greater and lesser (or pulmonary).

Remember that arteries carry the blood from the heart and veins carry the blood to the heart.

4. Answer the questions.

1) What kind of organ is the heart?

2) Where is it situated?

3) What is its structure?

4) What is the function of the heart?

5) Can you control the work of your heart? How?

6) What kind of blood vessels do you know?

7) How many valves are there in the heart? Name them.

8) What carries the blood to the heart?

Дата добавления: 2015-08-13