Multiple Choice QuestionsBlood pressure in the mammalian aorta is maximum during
systole of the left atrium
diastole of the right ventricle
systole of the left ventricle
systole of the left ventricle
C.
systole of the left ventricle
Blood pressure in the mammalian aorta is maximum during systole of the left ventricle because the heart shrinks and pushes loads of blood into aorta. It drives blood through the aortic valve to the body and organs except lungs. As the pressure in the aorta travels down into the distributing arteries the characteristics changes in diastolic and systolic pressures are observed. There is very small decline in arterial pressure due to the low resistance of large distributing arteries.
Which one of the following is correct?
Plasma = Blood – Lymphocytes
Serum = Blood + Fibrinogen
Lymph = Plasma + RBC + WBC
Lymph = Plasma + RBC + WBC
A man with blood group 'A' marries a woman with blood group 'B'. What are all the possible blood groups of their offsprings?
A, B and AB only
A, B, AB and O
O only
O only
Arteries are best defined as the vessels which
Carry blood away from the heart to different organs
Break up into capillaries which reunite to form a vein
Carry blood from one visceral organ to another visceral organ
Carry blood from one visceral organ to another visceral organ
Which one of the following statements is correct regarding blood pressure?
100/55 mmHg is considered an ideal blood pressure
105/50 mmHg makes one very active
190/110 mmHg may harm vital organs like brain and kidney
190/110 mmHg may harm vital organs like brain and kidney
'Bundle of His' is a part of which one of the following organs in humans?
Heart
Kidney
Pancreas
Pancreas
Which one of the following plasma proteins is involved in the coagulation of blood?
Serum amylase
A globulin
Fibrinogen
Fibrinogen
Given below is the ECG of a normal human. Which one of its components is human, which one of its components is correctly interpreted below?
complex QRS - One complete pulse
Peak T - Initiation of total cardiac contraction
peak P and peak R together - systolic and diastolic blood pressures
peak P and peak R together - systolic and diastolic blood pressures
ABO blood groups in humans are controlled by the gene I, It has three alleles - IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?
Three
one
Four
Four
Low Ca2+ in the body fluid may be the cause of
tetany
anaemia
angina pectoris
angina pectoris
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