Mechanism of Breathing in Humans

IMPORTANT

Mechanism of Breathing in Humans: Overview

This Topic covers sub-topics such as Spirometer, Mechanism of Breathing, Intercostal Muscles, External Intercostal Muscles, Internal Intercostal Muscles and, Phrenic Muscles

Important Questions on Mechanism of Breathing in Humans

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The _____ intercostal muscles contract at the time of forceful expiration.

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Phrenic muscles are present in the _____ (diaphragm/sternum) helps to maintain the volume of thoracic chamber.

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Intercostal muscle is of _____ (two/three) types.

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Mark the true statement among the following with reference to normal breathing

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During rest, the metabolic needs of the body are at their minimum. Which of the following is indicative of this situation

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Breathing differs from respiration by

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Respiration is the physiological process in which

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Exhalation is the process of expulsion of air through the respiratory tract. Which figure correctly shows the process of exhalation

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Lung ventilation movements are due to

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Which one of the following is called inspiratory muscle in mammals?

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During inspiration, the diaphragm

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During expiration the diaphragm becomes

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Which of the following statements is correct?

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Which structures are responsible for the breathing process?

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In expiration, diaphragm becomes

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The rate of breathing in an adult during resting condition is 

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What happens during expiration?

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What happens during inspiration?

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During inspiration through abdominal normal breathing, the muscles involved are?