FREE AND STUDY GAMES ABOUT CH.19 EXAM QUESTIONS

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FREE AND STUDY GAMES ABOUT CH.19 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -83 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: police stop Richard for driving erratically at 3 Am and give him a breathalyzer test, which he fails miserably because of

Answer:

the thinness of his respirtory membranes

Question 2: Changes in the respirtory system that accompany aging are

Answer:

-thickness mucus

• slowed swallowing reflex
• macrophages become less efficient at kepping bacteria out
• cilia become less active or vanish

Question 3: Ordinary air is about 21% oxygen and 0.04% carbon dioxide.

Answer:

true Question 4: The event of respiration are:

Answer:

• pulmonary ventilation

• External respirations

• Repsiratory gas transport

• Internal respiration

Question 5: the procedure used to directly examine the trachea and bronchial tree is called

Answer:

bronchoscopy

Question 6: cancers that orginates in the lungs is most likely to begin in

Answer:

epithelial (lining) cells

Question 7: Air entering the potential space of the pleural cavity is called

Answer:

pneumothorax

Question 8: the intensity (volume) of a vocal sounds is a result of the

Answer:

force of air passing over the vocal cords Question 9: Cellular respiration enables cells to harness the energy from oxygen.

Answer:

false

Question 10: The amount of oxygen released from oxyhemoglobin increases when

Answer:

carbon dioxide concentration increases Question 11: Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin.

Answer:

false

Question 12: Gas exchange occurs across alveolar pores.

Answer:

false

Question 13: The respiratory membrane consists of

Answer:

two thickness of epithelial cells and basement membranes Question 14: The force that moves air into the lungs during inspiration comes from the

Answer:

atmospheric pressure Question 15: A simple spirometer cannot measure which of the following air volumes?

Answer:

risidual volume

Question 16: The chloride shift

Answer:

maintains the ionic balance between the red blood cells and the plasma Question 17: A sudden contraction of the diaphragm while the glottis is closed produces a sneeze.

Answer:

false Question 18: A disorder seen in people who work in factories that package buttered popcorn, caused by inhaling organic dust, is

Answer:

extrinsic allergic alveolitis Question 19: the partial pressure of oxygen that stimulates the respiratory areas is __ of normal

Answer:

50%

Question 20: 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, gives rise to type II cells

Answer:

the type II cells secrete sufactant and the type I cells from the respiratory membrane

Question 21: The force responsible for normal expiration is supplied by the

Answer:

elastic recoil of tissues and surface tension

Question 22: In tuberculosis

Answer:

fiberous connective tissue forms around the sites of bacterial infection.

Question 23: Emphysema results in

Answer:

none

Question 24: The trachea

Answer:

is lined with a ciliated mucous membrane, includes 20 C-shaped cartilage rings, is a passageway for air, is also called the windpipe.

Question 25: Peripheral receptors stimulate the respiratory areas resulting in

Answer:

increasing respiratory rate Question 26: The left lung is larger than the right lung and is divided into three lobes.

Answer:

false Question 27: " im going tot hold my breath until I turn blue and stop breathing and die and it will be all your fault!" shrieked the 6-year-old at her father. the child was unable to carry out her threat because.

Answer:

increasing CO2 and hydrogen ion concentration and decreasing oxygen concentraton stimulate chemoreceptors