FREE AND STUDY GAMES ABOUT WEEK 12 EXAM

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FREE AND STUDY GAMES ABOUT WEEK 12 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -30 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: If the tidal volume of a given individual is 500 ml, then the anatomical dead space is approximately _____ ml.

Answer:

150 Question 2: Excessive fluid in the pleural cavity would be most likely to cause:

Answer:

decreased vital capacity.Question 3: A drop in the body's production of carbonic anhydrase would hinder the formation

of:

Answer:

carbonic acid.Question 4: The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg.

Answer:

160

Question 5: Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin?

Answer:

Decreased PO2 and increased PCO2 Question 6: Carbon dioxide is carried in three forms in the blood. Ranking them from greatest to

least amount carried, the sequence would be:

Answer:

bicarbonate ion, carbaminohemoglobin, and dissolved in plasma.Question 7: One hundred milliliters of arterial blood contains approximately what volume percent of oxygen?

Answer:

20%

Question 8: The PCO2 in alveolar air is _____ blood.

Answer:

Less than in the systemic venous and equal to the systemic arterial

Question 9: Which muscles are used for forced expiration?

Answer:

Abdominal muscles and internal intercostals Question 10: During inspiration, the expansion of the lungs causes:

Answer:

a decrease in alveolar pressure.Question 11: Which of the following helps determine the amount of oxygen that diffuses into the blood each minute?

Answer:

All of the above help determine the amount of oxygen that diffuses into the blood each minute.Question 12: The symbol HbNCOOH- is used for:

Answer:

carbaminohemoglobin

Question 13: Which of the following is not a means of transporting oxygen in the blood?

Answer:

Combined with the bicarbonate ion (HCO3-) Question 14: A type of breathing characterized by gradually increasing tidal volume for several

breaths followed by several breaths with gradually decreasing tidal volume is:

Answer:

Cheyne-Stokes respiration.Question 15: Vital capacity is defined as the:

Answer:

maximum volume of air that can be moved into and out of the lungs during forced respiration.

Question 16: 1. Standard atmospheric pressure is ______mm Hg.

Answer:

760 Question 17: By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood's hemoglobin has united with oxygen?

Answer:

97% Question 18: Boyle's law states that the volume of a gas varies _____ with pressure at a _____ temperature.

Answer:

inversely; constant

Question 19: Which of the following constitutes total lung volume?

Answer:

residual volume and vital capacity Question 20: The vital capacity is equal to the sum of the:

Answer:

inspiratory reserve volume, tidal volume, and expiratory reserve volume.

Question 21: The PCO2 in the atmosphere is:

Answer:

less than in the alveolar air Question 22: When the pressure in the lung is greater than atmospheric pressure:

Answer:

expiration occurs.Question 23: Which of the following is not a regulated process associated with the functioning of the respiratory system?

Answer:

Control of cell metabolism rate Question 24: The term used to describe the volume of air exchanged during normal inspiration

and expiration is:

Answer:

tidal volume.Question 25: 2. Which type of breathing is characterized by repeated sequences of deep gasps and apnea, and is usually seen in people with increased intracranial pressure?

Answer:

Biot's breathing Question 26: If a person were skiing high up in the mountains, she might feel that she is having

trouble breathing (getting enough oxygen in her blood). This is because the:

Answer:

lower atmospheric pressure lowers the PO2 and the diffusion gradient between the blood and the atmosphere is less.Question 27: The major form by which carbon dioxide is transported in the circulatory system

is:

Answer:

as bicarbonate ions.