Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 9, Problem 10RQ
Summary Introduction
Introduction:
The major areas, namely, central chemoreceptors and peripheral chemoreceptors, send impulses to the respiratory centers that activate specific ventilatory patterns. There are certain other factors apart from these major areas that affect the breathing—Hering-Breuer inflation reflex, juxtapulmonary-capillary receptors, deflation reflex, and irritant reflex.
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Chapter 9 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 9 - The respiratory components of the medulla consist...Ch. 9 - 2. Which of the following has the most powerful...Ch. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - When the systemic blood pressure increases, the...Ch. 9 - The peripheral chemoreceptors are significantly...Ch. 9 - Stimulation of the peripheral chemoreceptors can...Ch. 9 - Suppression of the peripheral chemoreceptors...Ch. 9 - Prob. 9RQCh. 9 - Prob. 10RQ
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- If the transpulmonary pressure equals zero,a. a pneumothorax has probably occurred.b. the lungs cannot inflate.c. elastic recoil causes the lungs to collapse.d. all of these apply.arrow_forwardThe lungs do not normally collapse because a. they are attached to the thoracic wall with parietal ligaments. b. they are attached to the thoracic wall with the visceral ligaments. c. the pressure in the intrapleural cavity is lower than the pressure in the intrapulmonary space (lungs). d. the pressure in the intrapleural cavity is greater than the pressure in the intrapulmonary space (lungs).arrow_forwardWhich of the following is considered the structural and basic functional unit of the lung that is responsible for the exchange of oxygen and carbon dioxide during respiration? a. Bronchioles b. Lungs c. Bronchus d. Alveoliarrow_forward
- Which of the following situations will cause an increase in airway resistance? a. Increase lung volume b. Decrease mucus production c. Increase sympathetic activity d. Increase parasympathetic activityarrow_forwardThe _________prevents most inspired particles such as dust from reaching the lungs. A. action of the epiglottis B. ciliated mucous lining in the nose C. porous structure of turbinate bones D. abundant blood supply to nasal mucosaarrow_forwardThe rhythmic control of breathing is produced by the activity of inspiratory and expiratory neurons in a. the medulla oblongata. b. the apneustic center of the pons. c. the pneumotaxic center of the pons. d. the cerebral cortex.arrow_forward
- Ventilation in the capillaries is matched to perfusion. This means that a. blood pressure from capillaries must match the pressure from the arterioles b. gas pressure in the alveolar must match the pressure in the bronchioles c. ventilation is never profuse enough d. ventilation in the alveolar must match the blood flow passing over those alveiolararrow_forwardWhile auscultating the lungs of an adult patient, soft low-pitched breath sounds are heard over the posterior lower lobes. Inspiration is longer than expiration. The health care provider interprets this assessment data as a. Bronchovesicular sounds usually heard b. Mixed bronchial and bronchovesicular sounds c. Bronchial breath sounds normally heard in this location d. Vesicular breath sounds normally heard in this locationarrow_forwardWhat do nerve fibers do in the respiratory system? Group of answer choices a. Constrict or dilate bronchial smooth muscle b. Increase or decrease mucous secretion c. Increase diffusion of oxygen in the alveoli d. A and B e. All of the abovearrow_forward
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