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Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System


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5 Questions MCQ Test Biology Class 11 | Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System

Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System for NEET 2022 is part of Biology Class 11 preparation. The Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System questions and answers have been prepared according to the NEET exam syllabus.The Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System below.
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Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 1

What would be the cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 ml?

Detailed Solution for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 1

The cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 mL would be 72 x 50 = 3600 mL. Thus, the correct answer is 3600 mL, i.e Option D.

Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 2

How many double circulations are normally completed by the human heart, in one minute?

Detailed Solution for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 2

As the ventricle is completely divided in birds, mammals and some reptiles (Crocodiles alligator) the left and right pans of the heart function as air tight conduits for pure and impure blood. The right part receives impure blood from whole body and sends it to the lungs for oxygenation. The left part receives purified blood from the lungs and supplies it to the whole body Thus the right and left parts of the heart respectively serve as completely separated pulmonary and systamic hearts. This is known as double heart circuit. In man the rate of heart beat (double circulation) is about 75 times per minute

Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 3

Another term for heart attack is

Detailed Solution for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 3

Myocardial infarction, the medical term for heart attack, literally means "heart tissue damage or death." Heart attacks most commonly occur when one or more of the coronary arteries — a network of blood vessels that supply blood to the heart — become blocked. Heart muscle becomes starved for oxygen and nutrients.

Whereas cardiac arrest refers to the sudden, unexpected loss of heart function, breathing and consciousness.

In cardiac arrest, the heart abruptly stops beating. Without prompt intervention, it can result in the person's death.

Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 4

Coronary heart disease is due to

Detailed Solution for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 4

Coronary heart disease (CHD) is a disease in which a waxy substance called plaque builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart muscle. When plaque builds up in the arteries, the condition is called atherosclerosis. The buildup of plaque occurs over many years.

Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 5

The course of blood from the heart to the lungs and back to the heart is called

Detailed Solution for Test: Double Circulation, Regulation of Cardiac Activity & Disorders of Circulatory System - Question 5

The blood circulation from heart to lungs and back to heart is pulmonary circulation and the circulation between heart to tissue and back to heart is systematic circulation and both are included in double circulation.

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