The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of
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Solution
SA node is the natural pacemaker located in the right atrium. SA node initiates the cardiac impulse. So, artificial pacemaker will be grafted at the site of SA node.
Child death may occur in the marriage between
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Solution
Rh factor was discovered by Karl Landsteiner. A child of Rh+ man will be Rh+ whether the mother is Rh+ or Rh–. If the mother is Rh+ then there will be no problem but if mother is Rh– so when the blood of Rh+ child (in womb) mixes with the blood of Rh– mother then some antibodies in mother’s blood are formed against Rh+ factor which coagulate the womb blood causing death.If birth takes place then there is a possibility of child death in early years. This in known as erythroblastosis foetalis. In most cases the Ist pregnancy may succeed but after that it fails.
An artificial pacemaker is implanted subcutaneously and connected to the heart in patients
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Solution
When irregularity in the heart rhythm occurs, normal heart rhythm can be restored and maintained by surgically implanting an artificial pacemaker, a device that sends out small electrical current to stimulate the heart to contract.
Artery differs fromvein in having
Blocking of arteries due to deposition of fats and calcium is called
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Solution
Blocking of arteries due to deposition of fat and calcium is called Atherosclerosis. Emphysema is a chronic obstructive lung disease.
Which one of the following doctors performed the first heart transplant ?
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Solution
The first human heart transplant was performed on 3rd December, 1967 by a team of 30 doctors headed by prof. Christian Barnard on 55 years old Louis Washkansky at the Groote Schurr Hospital, Cape Town, South Africa. Inspite of the operation by a leading surgeon Washkansky died on 21st December, 1967.
QRST is related with
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Solution
It is also called ventricular complex.
Coronary artery disease (CAD) is ofter referred to as
Persons suffering from high blood pressure should take the following precaution to avoid excessive rise in their blood pressure
ou are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of test tubes. Which of them will you not use for the purpose?
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Solution
Presence of calcium will remove heparin - blood anti-coagulant and will promote blood clotting. Sodium oxalate and heparin containing test tubes will not allow the blood to clot.