Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 6SQ
Breathing _______.
- a. ventilates the lungs
- b. draws air into airways
- c. expels air from airways
- d. causes reversals in pressure gradients
- e. all of the above
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Chapter 10 Solutions
Human Biology (MindTap Course List)
Ch. 10 - In the diagram below, label the parts of the...Ch. 10 - What is the difference between respiration and...Ch. 10 - Explain what a partial pressure gradient is and...Ch. 10 - What is oxyhemoglobin? Where does it form?Ch. 10 - What drives oxygen from the air spaces in alveoli,...Ch. 10 - How does hemoglobin help maintain the oxygen...Ch. 10 - What reactions enhance the transport of carbon...Ch. 10 - How do nerve impulses from the brain regulate...Ch. 10 - Why does your breathing rate increase when you...Ch. 10 - A partial pressure gradient of oxygen exists...
Ch. 10 - The ________ is an airway that connects the nose...Ch. 10 - Oxygen in air must diffuse across______ to enter...Ch. 10 - Prob. 4SQCh. 10 - Gas exchange occurs at the _______. a. two bronchi...Ch. 10 - Breathing _______. a. ventilates the lungs b....Ch. 10 - After oxygen diffuses into lung capillaries, it...Ch. 10 - Due to its partial pressure gradient, carbon...Ch. 10 - Prob. 9SQCh. 10 - Prob. 10SQCh. 10 - Cases of accidental carbon monoxide poisoning...Ch. 10 - Prob. 2CTCh. 10 - When you sneeze, abdominal muscles abruptly...Ch. 10 - Underwater, we humans cant compete with whales and...Ch. 10 - Prob. 5CT
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- During inhalation, ________. a. the thoracic cavity expands d. the diaphragm relaxes c. atmospheric pressure declines d. the lungs deflatearrow_forwardThe respiratory system_______. a. provides body tissues with oxygen b. provides body tissues with oxygen and carbon dioxide c. establishes how many breaths are taken per minute d. provides the body with carbon dioxidearrow_forwardOxygen in air must diffuse across______ to enter the blood. a. pleural sacs b. alveolar sacs c. a moist respiratory surface d. both b and carrow_forward
- 4. The number of alveoli continues to increase until about A. 6 years of age B. 8 years of age C. 10 years of age D. 12 years of agearrow_forwardGas exchange between systemic blood vessels and the tissues is called a. Tubular secretion b. External respiration c. Pulmonary ventilation d. Internal respirationarrow_forwardIn human lungs, gas exchange occurs at the______ . a. bronchi c. alveoli b. bronchioles d. pleural sacsarrow_forward
- The inspiratory reserve volume measures the ________. a. amount of air remaining in the lung after a maximal exhalation b. amount of air that the lung holds c. amount of air that can be further exhaled after a normal breath d. amount of air that can be further inhaled after a normal breatharrow_forwardSelect the disease which makes lungs lose its elasticity due to the inflammation of alveoli. A. Lung cancer B. Pneumonia C. Bronchitis D. Emphysema Recognize the correct adjustment in our body during acclimatization tohigh altitude. A. Ventilation rate decreases B. Hemoglobin affinity for oxygen increases in the tissue C. Kidney increases urinary excretion of bicarbonate ions D. Hemoglobin production decreasesarrow_forwardGas flow decreases as ________ increases.a. resistanceb. pressurec. airway diameterarrow_forward
- Ventilation of alveoli above the needs of metabolism tends to A. Increase the hydrogen ion concentration in the blood B. Increase the carbon dioxide concentration in the blood C. Leads to respiratory acidosis D. Decrease the carbon dioxide concentration in the blood E. Decrease the pH of the bloodarrow_forwardVital capacity is the_____ . a. amount of hemoglobin in a red blood cell b. amount of time a person can hold his or her breath c. maximum amount of air a person can move in and out with one breath d. amount of oxygen in an exhalationarrow_forwardAmong the factors that influence breathing rate and depth, the most important are changing levels of carbon dioxide, oxygen, and hydrogen ion in the ___________ blood a. venous b. arterial and venous c. arterial d. none of the abovearrow_forward
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