Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 17CYR
The basic rhythm for breathing is maintained by the:
a. respiratory pattern generator of the pons.
b. dorsal respiratory group of the medulla.
c. ventral respiratory group of the pons.
d. respiratory pattern generator of the medulla.
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Chapter 21 Solutions
Human Anatomy & Physiology
Ch. 21.1 - What are the main structures of the respiratory...Ch. 21.1 - 2. Is the larynx part of the upper or lower...Ch. 21.1 - Where are alveoli? What is their basic function?Ch. 21.1 - 4. List and define the four processes that make...Ch. 21.1 - 5. How does the respiratory system contribute to...Ch. 21.1 - List and describe four functions of the...Ch. 21.2 - Match the following terms with the correct...Ch. 21.2 - 2. Describe the external and internal structure...Ch. 21.2 - What happens to the glottis and the pitch of the...Ch. 21.2 - 4. What is the function of the tracheal mucosa?
Ch. 21.2 - How does the epithelium of the bronchial tree...Ch. 21.2 - Trace the pathway from the primary bronchi to the...Ch. 21.2 - 7. What structures make up the respiratory...Ch. 21.2 - Explain the structure of the pleural cavities.Ch. 21.3 - 3. What drives the movement of gases during...Ch. 21.3 - What does the intrapleural pressure prevent under...Ch. 21.3 - 5. How are inspiration and expiration achieved?
Ch. 21.3 - 6. What is airway resistance? What is the main...Ch. 21.3 - How does surfactant decrease surface tension?Ch. 21.3 - What drives the movement of gases?Ch. 21.3 - Prob. 7QCCh. 21.3 - Prob. 8QCCh. 21.4 - 1. How does the pressure gradient between two gas...Ch. 21.4 - Prob. 2QCCh. 21.4 - 3. What takes place during pulmonary gas...Ch. 21.4 - Prob. 4QCCh. 21.4 - Prob. 5QCCh. 21.4 - What are three factors that influence the...Ch. 21.5 - How is the majority of oxygen transported through...Ch. 21.5 - How do temperature, pH, PCO2, and BPG affect Hbs...Ch. 21.5 - 3. Why is the S shape of the oxygen-hemoglobin...Ch. 21.5 - What are the three ways in which the body...Ch. 21.5 - Prob. 5QCCh. 21.5 - Prob. 6QCCh. 21.6 - 1. Which steps of respiration rely on partial...Ch. 21.7 - 1. Which collection of neurons generates the...Ch. 21.7 - What are the functions of the dorsal and ventral...Ch. 21.7 - 3. Where are the central chemoreceptors located?...Ch. 21.7 - What do the central chemoreceptors trigger if...Ch. 21.7 - Prob. 5QCCh. 21.8 - 1. What are the differences between obstructive...Ch. 21.8 - 2. What are the three subtypes of COPD? What is...Ch. 21.8 - Prob. 3QCCh. 21 - Which of the following are functions of the...Ch. 21 - Prob. 2CYRCh. 21 - 3. Mark the following statements as true or false....Ch. 21 - Prob. 4CYRCh. 21 - 5. Fill in the blanks: The structures that vibrate...Ch. 21 - Prob. 6CYRCh. 21 - Prob. 7CYRCh. 21 - Prob. 8CYRCh. 21 - Match each term with the correct definition....Ch. 21 - Prob. 10CYRCh. 21 - Which of the following does not affect the...Ch. 21 - Prob. 12CYRCh. 21 - Fill in the blanks: When the alveolar PO2...Ch. 21 - Prob. 14CYRCh. 21 - Match the following terms with the correct...Ch. 21 - 16. Fill in the blanks: Hyperventilation causes...Ch. 21 - The basic rhythm for breathing is maintained by...Ch. 21 - Prob. 18CYRCh. 21 - Prob. 19CYRCh. 21 - Prob. 20CYRCh. 21 - Prob. 1CYUCh. 21 - Prob. 2CYUCh. 21 - Prob. 3CYUCh. 21 - Prob. 4CYUCh. 21 - 1. When a person hyperventilates, what happens to...Ch. 21 - Prob. 2AYKACh. 21 - Prob. 3AYKACh. 21 - Prob. 4AYKACh. 21 - 5. Mrs. Jordan is brought to the emergency room by...Ch. 21 - What happens to the metabolic rate of skeletal...
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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_forwardA respiratory chemoreceptor is a sensory receptor that transduces achemical signal into an action potential. Which of the following is FALSEabout the respiratory chemoreceptors? Explain the answer. a. The central chemoreceptor is located at the primary respiratory control in the brain.b. The peripheral chemoreceptors are at the lower airways of the respiratory zone.c. Central chemoreceptors are sensitive to increased carbon dioxide.d. Peripheral chemoreceptors are sensitive to decreased oxygen levels.arrow_forwardParamedics arrived at a car accident to find an elderly gentleman breathing erratically. He was not wearing his seat belt and had hit his head on the windshield. Given his erratic breathing, they were concerned that he had damage to the a. medulla oblongata. b. cerebral cortex. c. pons. d. spinal cord.arrow_forward
- The conducting zone in the respiratory system has the following function a. Movement of gases only b. Movement and exchange of gases c. Exchange of gases only d. Transport of gases to the tissuesarrow_forwardDescribe the respiratory areas of the brainstem andhow they produce a rhythmic pattern of ventilation.arrow_forwardIf Mr. Smith is suffering from pulmonary hypertension. Which of the following receptors would be stimulates in an attempt by his body to maintain a normal homeostasis state? A. J receptors B. Central Chemoreceptors C. Peripheral chemoreceptors D. Stretch receptorsarrow_forward
- Which of these parts of the brainstem is correctly matched with itsmain function?a. ventral respiratory groups—stimulate the diaphragmb. dorsal respiratory groups—limit inflation of the lungsc. pontine respiratory group—is involved in the switch betweeninspiration and expirationd. All of these are correct.arrow_forwardHow does the Medulla Oblongata contribute to the breathing reflexes in humans?arrow_forwardThe visceral pleura covers thea. outer surface of the lung.b. gas exchange surface of the alveoli.c. inner wall of the thoracic cavity.d. lining of the bronchi and bronchioles onlyarrow_forward
- Compare the timing of respiratory movements during speech and tidal breathing. Compared to inspiration for tidal breathing, what can you say about the duration of inspiration for speech breathing? Group of answer choices A. It is a shorter duration than tidal breathing B. It is a longer duration than tidal breathing C. It is the same duration as tidal breathingarrow_forwardWhich of these statements about intrapulmonary pressure and intrapleural pressure is true?A.The intrapulmonary pressure is always subatmospheric.B.The intrapleural pressure is always greater than the intrapulmonary pressure.C.The intrapulmonary pressure is greater than the intrapleural pressure.D.The intrapleural pressure equals the atmospheric pressure.arrow_forward1) 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_forward
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