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Arteriole is a type of blood vessel.

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Important Questions on Body Fluids and Circulation

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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Blood pressure in the mammalian aorta is maximum during
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Statement (S): The sinoatrial node is called 'Pace-maker'.

Reason (R): The sinoatrial node contains specialised cardiomyocytes and generates action potentials without any external stimuli.

The correct answer is

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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System

Given below are sets of five terms each. Rewrite the terms in correct order in a logical sequence beginning with the first word that is underlined:

Artery, Capillaries, Venule, Vein, Arteriole.

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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Blood pressure in the pulmonary artery is:
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Papillary muscles are found in which of the following?
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Read the following (A-D) statements :-

A. The tricuspid and bicuspid valves are opened during joint diastole.

B. Atrial systole decrease the flow of blood into the ventricles by about 30 percent.

C. Ventricular systole increases the ventricular pressure.

D. Ventricular pressure falls causing the closure of semilunar valves.

How many of the above statements are correct:-
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional. What will be the immediate effect?
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
People living at sea level have around 5 million RBC per cubic millimiter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude.
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Ventricles have _____ walls when compared with those of auricles.
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
The wall of the heart consists of three layers, such as epicardium, myocardium and _____ .
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Which blood vessels carry blood from different parts of your body to the heart?
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Purkinje's fibres are found in
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
The main difference in the structure of arteries and veins is in:
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The blood flow through the human heart is visualised by
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Fill in the blank by choosing the correct option from the bracket: (oxygen, carbon dioxide)

substance From To
 _____ Lungs Whole-body

 

 

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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Find the odd one out.
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_____ is a condition where the heart beat is slower than normal.
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Which of the following statements is true?
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Rewrite the terms in the correct order in a logical sequence:
Foetus: Amnion:: Heart: _____.
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Biology>Human Physiology>Body Fluids and Circulation>Human Circulatory System
Walls of capillaries consist of a single layer of squamous _____ cells.