Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 8RQ
What causes the exchange of oxygen and carbon dioxide between alveoli and blood or between blood and cells?
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The alveolar walls are composed of two types of cells type I
and type II pneumocytes. The function of type II cells is to
O increase surface tension
O secrete surfactant
O decrease surface tension
O trap dust and other debris
O b) and c)
O b) and d)
Which of the following is the respiratory membrane composed of?
A) respiratory bronchioles and alveolar ducts
b) respiratory bronchioles and alveolar sacs
d) alveolar sacs and alveolar ducts
e) alveolar and capillary walls and their fused basement membranes
What is the difference between ventilation and respiration?
Chapter 18 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 18.1 - Cellular metabolism review: which of the following...Ch. 18.1 - Why doesnt the movement of oxygen from the alveoli...Ch. 18.1 - If nitrogen is 78% of atmospheric air, what is the...Ch. 18.1 - At the summit of Mt. Everest, an altitude of 8850...Ch. 18.1 - Prob. 5CCCh. 18.1 - If alveolar ventilation increases, what happens to...Ch. 18.1 - True or false? Plasma with a PO2 of 40 mm Hg and a...Ch. 18.1 - A saline solution is exposed to a mixture of...Ch. 18.2 - Can a person breathing 100% oxygen at sea level...Ch. 18.2 - What effect does hyperventilation have on the...
Ch. 18.2 - A muscle that is actively contracting may have a...Ch. 18.2 - How would an obstruction of the airways affect...Ch. 18 - List five factors that influence the diffusion of...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Describe the structure of a hemoglobin molecule....Ch. 18 - Prob. 5RQCh. 18 - Describe the chemoreceptors that influence...Ch. 18 - Describe the protective reflexes of the...Ch. 18 - What causes the exchange of oxygen and carbon...Ch. 18 - List five possible physical changes that could...Ch. 18 - Concept map: Construct a map of gas transport...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Define hypoxia, COPD, and hypercapnia.Ch. 18 - Why did oxygen-transporting molecules evolve in...Ch. 18 - Draw and label the following graphs: a. the effect...Ch. 18 - Prob. 17RQCh. 18 - Prob. 18RQCh. 18 - Create reflex pathways (stimulus, receptor,...Ch. 18 - Prob. 20RQCh. 18 - Which person carries more oxygen in his blood? a....Ch. 18 - What would happen to each of the following...Ch. 18 - In early research on the control of rhythmic...Ch. 18 - Prob. 24RQCh. 18 - Prob. 25RQCh. 18 - Prob. 26RQCh. 18 - Prob. 27RQCh. 18 - Prob. 28RQCh. 18 - Adolph Fick, the nineteenth-century physiologist...Ch. 18 - Prob. 30RQ
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- How does the structure of alveoli maximize gas exchange?arrow_forwardWhat reactions enhance the transport of carbon dioxide throughout the body? How is carbon dioxide moved out of the body?arrow_forwardHow do nerve impulses from the brain regulate ventilation of the lungs? How are the rate and depth of breathing controlled?arrow_forward
- Which of the following is the respiratory membrane composed of? A) atria and alveolar sacs B) alveolar and capillary walls and their fused basement membranes C) respiratory bronchioles and alveolar ducts D) respiratory bronchioles and alveolar sacsarrow_forwardAs the diameters of the respiratory airways decrease, which of the following is observed? a) There is an increase in cartilage support O b) Pseudostratified columnar epithelium becomes simple cuboidal epithelial linings O c) The epithelium becomes more ciliated d) There are less mucus secreting goblet cells in the epithelial liningarrow_forwardWhich of the following is the respiratory membrane composed of? A) respiratory bronchioles and alveolar ductsb) respiratory b) bronchioles and alveolar sacs c ) alveolar sacs and alveolar ducts d) alveolar and capillary walls and their fused basement membranesarrow_forward
- What is the difference between the respiratory mucosa and the respiratory membrane and how does gas exchange work ?arrow_forwardBeginning with the alveolar space, place the following layers of the respiratory membrane into the correct order. a) capillary basement membrane b)interstitial tissue c)capillary epithelial cells d)alveolar basement membrane e)alveolar epithelial cells f)blood g)fluid and surfactant in the alveolusarrow_forwardIs carbon dioxide transported from the bloodstream to the alveoli or from the alveoli to the bloodstream, and if so, why does it go in this way (based on partial pressure)?arrow_forward
- Where does oxygen and carbon dioxide exchange take place within the lungs?arrow_forwardWhere in the body is the partial pressure of carbon dioxide the highest? Select one: a) Alveolar air b) Systemic venous blood c) Tissue fluids d) Tissue cells e) Pulmonary venous bloodarrow_forwardWhat generates the diffusion gradients for oxygen and carbon dioxide in the tissues?arrow_forward
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