Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 21.8, Problem 21CYU
Which brain stem respiratory area is thought to generate the respiratory rhythm?
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Chapter 21 Solutions
Anatomy & Physiology (6th Edition)
Ch. 21.1 - Prob. 1CYUCh. 21.1 - Which part of the pharynx houses the pharyngeal...Ch. 21.2 - Which structure seals the larynx when we swallow?Ch. 21.2 - Which structural features of the trachea allow it...Ch. 21.2 - What features of the alveoli and their respiratory...Ch. 21.2 - A 3-year-old boy is brought to the emergency...Ch. 21.3 - The lungs are perfused by two different...Ch. 21.3 - Prob. 8CYUCh. 21.4 - What is the driving force for pulmonary...Ch. 21.4 - What causes the intrapulmonary pressure to...
Ch. 21.4 - What causes the partial vacuum (negative pressure)...Ch. 21.4 - Premature infants often lack adequate surfactant....Ch. 21.5 - Explain why slow, deep breaths ventilate the...Ch. 21.5 - Prob. 14CYUCh. 21.6 - You are given a sealed container of water and air....Ch. 21.6 - PO2 in the alveoli is about 56 mm Hg lower than in...Ch. 21.6 - Suppose a patient is receiving oxygen by mask. Are...Ch. 21.7 - Prob. 18CYUCh. 21.7 - What is the relationship between CO2 and pH in the...Ch. 21.7 - The dotted lines in the two graphs below represent...Ch. 21.8 - Which brain stem respiratory area is thought to...Ch. 21.8 - Prob. 22CYUCh. 21.9 - An injured soccer player arrives by ambulance in...Ch. 21.9 - Prob. 24CYUCh. 21.10 - What distinguishes the obstruction in asthma from...Ch. 21 - Cutting the phrenic nerves will result in (a) air...Ch. 21 - Which of the following laryngeal cartilages is/are...Ch. 21 - Prob. 3MCCh. 21 - The detergent-like substance that keeps the...Ch. 21 - Which of the following determines the direction of...Ch. 21 - When the inspiratory muscles contract, (a) the...Ch. 21 - The nutrient blood supply of the lungs is provided...Ch. 21 - Oxygen and carbon dioxide are exchanged in the...Ch. 21 - Which of the following would not normally be...Ch. 21 - Most oxygen carried in the blood is (a) in...Ch. 21 - Which of the following has the greatest...Ch. 21 - In mouth-to-mouth artificial respiration, the...Ch. 21 - Prob. 13MCCh. 21 - Prob. 14MCCh. 21 - Damage to which of the following would most likely...Ch. 21 - Prob. 16MCCh. 21 - Trace the route of air from the nares to an...Ch. 21 - (a) Why is it important that the trachea is...Ch. 21 - Briefly explain the anatomical reason why most men...Ch. 21 - The lungs are mostly passageways and elastic...Ch. 21 - Describe the functional relationships between...Ch. 21 - Discuss how airway resistance, lung compliance,...Ch. 21 - (a) Differentiate clearly between minute...Ch. 21 - Prob. 24SAQCh. 21 - (a) Define hyperventilation. (b) If you...Ch. 21 - Prob. 1CCSCh. 21 - Prob. 2CCSCh. 21 - Barbara Joley was in the bus that was hit...Ch. 21 - Barbara Joley was in the bus that was hit...Ch. 21 - Prob. 5CCSCh. 21 - Prob. 6CCSCh. 21 - Prob. 7CCS
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- The respiratory components of the medulla consist of which of the following? Dorsal respiratory group Apneustic center Ventral respiratory group Pneumotaxic center 1 only 2 only 1 and 3 only 2 and 4 onlyarrow_forwardHow do nerve impulses from the brain regulate ventilation of the lungs? How are the rate and depth of breathing controlled?arrow_forwardWhat is the distinction between the upper and lower respiratory tracts?arrow_forward
- Where in the brain is the respiratory center?arrow_forwardHow does the Medulla Oblongata contribute to the breathing reflexes in humans?arrow_forwardThe cilia lining the upper respiratory passages (superior to the larynx) beat inferiorly, whereas the cilia lining the lower respiratory passages (larynx and inferior) beat superiorly. What is the functional reason for this difference?arrow_forward
- 1) During alveolar HYPERventilation, levels of blood CO2 drop while blood O2 is elevated. What reflexive responses will this stimulate from the CPG? a) Increased DRG and VRG activity in the medulla, stimulating I and E motor neurons. b) Decreased DRG and VRG activity in the medulla, stimulating I and E motor neurons. c) Decreased DRG and VRG activity in the medulla, inhibiting I and E motor neurons. d) Increased DRG and VRG activity in the medulla, inhibiting I and E motor neurons.arrow_forwardWhat is Neural Generation of Rhythmic Breathing?arrow_forwardWhat is the respiratory zone vs. conduction zone in the respiratory system?arrow_forward
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