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The rate of heart contractions is regulated by two groups of nerve fibers. It varies in different persons and at different age.
Содержание книги
- XVIII. Explain the pronunciation of the letter combinations in bold type: thousand, which, with, them, chart, phase, show, chill.
- Learn, earth, earn, research, heard.
- The long pens are on the table. Длинные ручки на столе.
- Our classes usually begin at 8.30 a.m. In addition to several practical classes we have a lecture or two every day.
- They are not carrying out они не проводят опыт сейчас .
- Are the doctors fighting for the life of this patient? 2. Who is fighting for the life of this patient? 3. What are the doctors doing? 4. What are the doctors fighting for?
- We are first-year students. We- perform operations (cannot, may).
- Leave, last, tooth, teeth, circle, yellow, chair, appear, prepare, pure, while, whole, early, become, want, chest, short.
- Нам дают книги. 2. Мне часто задают много вопросов.
- The bones of the skeleton are connected together by the joints or by the cartilages and ligaments. The bones consist of organic and inorganic substance.
- To call, brain, eyeball, nose, cavity, to compose, to consist of, joint, on each side, trunk, neck, breastbone, to separate.
- The student is asked many questions at the lesson. The student asked many questions at the lesson.
- This book will be read with great interest by all of us. 2. The thoracic cavity was examined by X-rays. 3. Artificial joints were used by the surgeon.
- Their work helped to establish that the muscles were the active agents of motion ( движение ) and contraction.
- IV. 1. Прочтите текст G. 2. О чем говорится в каждом абзаце?
- My friend is greatly excited because his son has the disease of the coxofemoral joints. The boy cannot walk and must be in bed.
- Road, moan, soap, load, foam, soak, throat.
- The muscular structure of the heart consists of two parts - the muscular layers of the atria and the muscular layers of the ventricles.
- The aorta- from the upper part of the left ventricle. 2. The shape of the vessels- when they dilate. 3. The right lung is- than the left one. 4. The lungs are- with the pleura.
- Эта экспериментальная работа будет проведена на будущей неделе. 2. Эти данные применяются на практике. 3. Меня будут обследовать несколько врачей. 4. В пятницу нам читали лекцию поанатомии.
- Text E. The Alimentary Tract
- В Москве издается много медицинских журналов. (many, published, journals, Moscow, are, in, medical)
- The blood (to carry) to the liver passes through the portal vein.
- XVI. Read and translate Text H.
- At the rate of, per minute (day), to depend on (upon), on physical exertion, to discharge from the hospital, to discharge out bile, to pump blood through arteries, to be followed by.
- The rate of heart contractions is regulated by two groups of nerve fibers. It varies in different persons and at different age.
- В норме сердце бьется со скоростью 60-70 ударов в минуту.
- Text С . The Corpuscular Elements of Blood
- XVIII. Read Text D and say what data important for a future doctor are given in it. What will you try to remember?
- It was estimated that blood was a fluid tissue.
- На заседании кафедры он доложил о результатах своих опытов.
- W. Harvey found out the heart changed its colour during the contractions.
- The methods of investigation the scientist had included in his research helped him to determine the origin of the pulmonary disease. 4. The faculty my brother is in trains pediatricians.
- M. Sechenov investigated blood gases in 1858. И. М. Сеченов исследовал газы крови в 1858 году.
- The new methods of research had been included into my work. 2. The course of treatment has been prolonged. 3. The structure of the pancreas will have been described in the new book.
- Не may examine the patient. 2. He may be examining the patient now.
- Для этой цели; 2) полный покой; 3) распространяется по коре головного мозга; 4) имеет большое защитное значение для; 5) глубокий спокойный сон; 6) жизнедеятельность.
- Different actions which are repeated every day before going to bed also act as stimuli which produce the process of inhibition.
- XI. Переведите текст E. Расскажите о кровеносных сосудах и дайте обоснование их роли в организме человека.
- Грамматика: заменители модальных глаголов. Способы выражения долженствования. Производные местоимения: some, any, no, every. Случаи употребления глаголов to be, to have.
- One can impair the health if one does not sleep for along period of time.
- Чем могут быть заменены модальные глаголы can, may, must?
- Everyone knows that phagocytes destroy microorganisms.
- The environment must be provided with the proper amount of oxygen for the growth of aerobic microorganisms.
- To give in, to give up, to give away; 2) to get up, to get down, to get in, to get off.
- If it is necessary a nurse will come to the patient’s house to give him the administered injections or carry out any of the doctor’s administrations.
- What is the time now? 2. My father visited Moscow many times. 3. We have classes in Physiology three times a week. 4. What time do you have lectures in Microbiology?
- The doctor administered the patient two tablets of tetracyclin to be taken orally and a cough mixture to be taken three times a day.
- IX. 1. Read Text D. 2. Try to understand the meaning of the words in bold type from the context. 3. Retell the text.
- The nurse was applying cups when the ward doctor entered the ward.
Physiologists have determined that in the adult the heart makes from 60 to 72 beats per minute. In children the rate of heartbeat is much higher. Research work of many scientists has helped to determine that the rate of heartbeat increases depending on different emotions.
Each beat of the heart is followed by a period of rest for the cardiac muscle. Each wave of contraction and a period of rest following it compose a cardiac cycle.
Research work has given physiologists the possibility to find out that the heart muscle works or contracts about one third of the time of the person’s life. The period of rest is shorter during greater physical exertion and longer when the body is at rest.
Each cardiac cycle consists of three phases: physiologists have called the first phase of short contraction of both atria - the atrial systole. They have called the second phase of a more prolonged contraction of both ventricles - the ventricular systole. The period of rest of the cardiac muscle is called the diastole.
The left ventricle discharges out the blood received by the left atrium from the pulmonary circulation through the aorta to the systemic circulation.
The blood received from the systemic circulation by the right atrium is discharged out of the right ventricle to the lungs through the pulmonary arteries.
Prolonged research work of many physiologists has given the possibility to estimate the role of the ventricles which serve as the main pump. The atria act as receiving chambers. The contraction of the atria which sends the final portion of the blood into the ventricle is considerably less.
CLASS ASSIGNMENTS
XIII. Read the following words and explain the pronunciation of the letters and letter combinations in bold type:
Quality, quantity, coat, throat, quick, question, dead, treat, mouth, month, cause, cover, quinsy, qualified.
XIV. Form the adjectives using the suffix -able. Translate them:
Consider, change, depend, vary, eat, question, work.
XV. Name and translate the verbs from which the following nouns are formed:
Operation, circulation, estimation, radiation, location, separation, graduation, dilatation, regulation.
XVI. Supply ‘already’ or ‘yet’. Translate the following sentences:
The scientists have introduced this term. 2. The researchers have not found out the origin of this disease. 3. The physiologists have estimated the importance of this great discovery. 4. They have not published the book on their discoveries.
XVII. Translate the following sentences:
The human heart begins to beat and pump blood quicker than usual during the emotional stress. 2. The human heart makes 60-80 contractions per minute. 3. On physical exertion the heart has a short period of rest and the diastole becomes less. 4. The heart acts as a pump discharging out the blood to peripheral and pulmonary systems. 5. Ten tons of blood are pumped through the heart daily. 6. John Floyer, an English doctor (1649-1734), was the first scientist to find out the varying pulse rate in men.
XVIII. Put the verbs in the required form. Translate the following sentences:
The nurse already (to take temperature). 2. The doctor not yet (to use) this method of treatment. 3. She not (to see) her parents since May. 4. The nurse just (to determine) the patient’s blood group.
XIX. Choose the proper answer from those given below:
1. Did the scientists find out the total weight of the blood? (a) The scientists find out the total weight of the blood; (b) The scientists found out the total weight of the blood; (c) The total weight of the blood was found out by the scientists. 2. Is the rate of the heartbeat regulated by two groups of nerve fibers? (a) The rate of the heartbeat will be regulated by two groups of nerve fibers; (b) Two groups of nerve fibers have regulated the rate of the heartbeat; (c) The rate of the heartbeat is regulated by two groups of nerve fibers.
XX. Translate the following sentences paying attention to the words in bold type:
Я часто посылаю письма своим родителям. 2. Я только что послал письмо своим родителям. 3. Вчера я послал письмо своим родителям. 4. Вчера я послал письмо своим родителям до того, как пошел на лекцию. 5. Какие фотографии вы посылаете сейчас своим родителям? 6. Я пошлю письмо своим родителям в следующий понедельник. 7. Я пошлю письмо своим родителям к концу этой недели.
XXI. Translate into English:
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