Filters
Question type

Study Flashcards

Respiration is


A) breathing.
B) making ATP.
C) the entire process of gas exchange between the atmosphere and cells.
D) circulating blood to tissues.

Correct Answer

verifed

verified

Ordinary air is about 21% oxygen and 0.04% carbon dioxide.

Correct Answer

verifed

verified

The inverse relationship between pressure and volume is known as


A) Dalton's law.
B) Newton's law.
C) Boyle's law.
D) Starlings's law.

Correct Answer

verifed

verified

The events of respiration are


A) inhaling and exhaling.
B) ventilation,external and internal respiration,and cellular respiration.
C) inflating and deflating alveoli.
D) delivering carbon dioxide to cells and removing oxygen from cells.

Correct Answer

verifed

verified

Alveoli are kept clean by the action of


A) surfactant.
B) antibodies.
C) macrophages.
D) platelets.

Correct Answer

verifed

verified

Carbon monoxide is toxic because it destroys respiratory areas in the brain.

Correct Answer

verifed

verified

Peripheral receptors stimulate the respiratory areas resulting in


A) increased respiratory rate.
B) decreased respiratory rate.
C) respiratory collapse.
D) passive exhalation.

Correct Answer

verifed

verified

The cells of an alveolus that secrete surfactant are type __.

Correct Answer

verifed

verified

Globin is


A) another term for alveolus.
B) a fat that carries oxygen in the blood.
C) a form of surfactant.
D) the protein part of hemoglobin,which carries oxygen in the blooD.

Correct Answer

verifed

verified

A disorder seen in people who work in factories that package buttered popcorn,caused by inhaling organic dust,is


A) emphysema
B) extrinsic allergic alveolitis.
C) berylliosis
D) asbestosis.

Correct Answer

verifed

verified

The layer of serous membrane that is firmly attached to the surface of a lung is called ______ ______.

Correct Answer

verifed

verified

The force that moves air into the lungs during inspiration comes from the


A) diaphragm.
B) external intercostal muscles.
C) abdominal wall muscles.
D) atmospheric pressure.

Correct Answer

verifed

verified

Police stop Richard for driving erratically at 3 AM and give him a breathalyzer test,which he fails miserably because of


A) the thinness of his respiratory membranes.
B) the thickness of his respiratory membranes.
C) the excellent condition of his alveoli.
D) excess surfactant secreted in response to alcohol.

Correct Answer

verifed

verified

In bronchopulmonary dysplasia,the lungs of newborns become inflamed and scarred.Most infants recover,but some die.An experimental treatment cultures stem cells from a newborn's umbilical cord.The stem cells,in a lab dish,give rise to type II cells,which in turn give rise to more type I cells.In this treatment


A) the type I cells secrete surfactant and the type II cells form the respiratory membrane.
B) the type II cells secrete surfactant and the type I cells form the respiratory membrane.
C) both type I and type II cells produce surfactant.
D) the stem cells directly replace alveoli.

Correct Answer

verifed

verified

Gas exchange occurs across alveolar pores.

Correct Answer

verifed

verified

The pharynx is an enlargement at the top of the trachea that houses the vocal cords.

Correct Answer

verifed

verified

The trachea


A) is lined with a ciliated mucous membrane.
B) includes 20 C-shaped cartilage rings.
C) is a passageway for air.
D) is all of the above.

Correct Answer

verifed

verified

Of the respiratory air volumes listed,which one has the largest volume?


A) Expiratory reserve volume
B) Inspiratory reserve volume
C) Vital capacity
D) Tidal volume

Correct Answer

verifed

verified

The glottis is the opening between the vocal cords.

Correct Answer

verifed

verified

Which of the following is important in maintaining the pH of blood?


A) Oxygen
B) Phosphate
C) Carbon dioxide
D) Nitrogen

Correct Answer

verifed

verified

Showing 61 - 80 of 100

Related Exams

Show Answer