VIII. Speak on the following topics

Arteries and veins: to carry, to transport, oxygenated blood, deoxygenated blood, the largest artery, to line, blood flow, to assist, to split, to divide into, it is … that …; to give, to receive. Capillaries, venules, veins, the venae cavae, to return, thin walls, blood flow, to assist, the back flow.

Reoxygenation: to ensure, a second “loop”, blood rich in, to travel from … along … to the lungs, to be exchanged for, the pulmonary artery, the newly oxygenated blood, to the heart, along.

Part III: The structure and the action of the heart

I. Practice the pronunciation and stress

aorta	[eı`ɔ:tə]
atrium	[`eıtrıəm]
diastole	[daı`æstəlı]
period	[`pıərıəd]
rhythm	[`rıðm]
series	[`sıəri:z]
systole	[`sıstəlı]
valve	[`vælv]
ventricle	[ventrıkl]

II. Copy out and learn the following words

atrium	[`eıtrıəm]	предсердие
burst	[`bə:st]	разрыв, взрыв
to clench	[`klenʧ]	сжимать
to design	[dı`zaın]	конструировать
fist	[`fıst]	кулак
pacemaker	[`peısˏmeıkə]	водитель ритма
rapid	[`ræpİd]	быстрый
rate	[`reıt]	частота
series	[`sıəri:z]	серия, ряд
to serve	[`sə:v]	служить
sequence	[`sıkwens]	последовательность
ventricle	[`ventrıkl]	желудочек

III. Group the following words from your active vocabulary in the table

Nouns

Verbs

Adjectives

Adverbs

Act, active, activity; power, powerful, powerfully; system, systematical, systematically; muscle, muscular; circulate, circulation; contract; contraction; relax, relaxation; vertical, vertically; largely; rapidly, rapid.

IV. Read and translate the following word combinations

rate: a metabolic rate; pulse rate; respiration rate; at a certain rate; at a speedy rate; the heart beats at a rate of 60 to 80 beats a minute.

series: a series of organs; a series of valves; the flow of blood in each side of the heart is controlled by a series of valves; a new series of stamps (lectures).

sequence: in strict sequence; natural sequence; chronological sequence of events; the pacemaker also helps to ensure the correct sequence of actions.

V. Remember the following prepositional phrases

about a size of a ___	размером примерно
at rest	в покое
to enter the atrium	поступать в предсердие
from here	откуда

VI. Match the following words with the definitions

the septum	the upper chamber
atrium	the lower chamber
ventricle	a muscular wall inside the heart
to consist	blood rich in oxygen
to design	to be composed of
deoxygenated blood	to plan
oxygenated blood	blood rich in carbon dioxide
the pacemaker	the order of activities
the sequence of activities	quickly
rapidly	a specialized heart tissue