Biology - Mock Test 96

Question 951

Emphysema, a chronic disorder is high in cigarette smokers. In such cases the ______ of the person is/are found damaged?

A) Plasma membrane B) Alveolar walls C) Bronchioles D) Respiratory muscles

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Question 952

Which one of the following statements is incorrect regarding the pharynx?

A) Organ of the upper respiratory tract B) Connects to the larynx C) Contributes to the production of speech D) Composed of smooth muscle

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Question 953

What is the instrument that measures the amount of air inhaled and exhaled with each breath?

A) Sphygmomanometer B) Hygrometer C) Stethoscope D) Spirometer

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Question 954

Bronchi branch into the tubes of smaller diameters (less than 1 mm) known as ______?

A) Microtrachea B) Bronchioles C) Alveoli D) Eustachian tube

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Question 955

Respiratory center is located in the ________

A) Pneumotaxic center B) Medulla oblongata C) Alveoli D) Apneustic center

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Question 956

Which one of the followings is the function of Thoracic cavity?

A) Forms the floor of the thoracic cavity B) Encloses the lungs C) Contains the respiratory organs D) None of these

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Question 957

Voice box or ______ is the portion of the respiratory tract which contains the vocal cords for producing sound?

A) trachea B) glottis C) larynx D) epiglottis

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Question 958

The tube that runs from the middle ear to the pharynx ?

A) epiglottis B) trachea C) glottis D) auditory tubes

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Question 959

The primary muscle of inspiration which forms the floor of the thoracic cavity is ______

A) pleural membrane B) sternum C) ventricle D) diaphragm

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Question 960

The oxygen dissociation curve is shifted to the right by an increase in ______

A) H+ concentration B) PCO2 C) temperature D) All of these

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