ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
4th Edition
ISBN: 9781265761493
Author: McKinley
Publisher: MCG
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Chapter 23, Problem 3DYKB
Summary Introduction
Introduction:
Lungs are respiratory organs located in the thoracic cavity. Lungs consist of lobes. Right lung consists of three lobes, whereas left lung consists of two lobes. Lobes are further divided into bronchopulmonary segments. The right and left lobes of the lungs attach to the right and left bronchus respectively. The bronchus is further divided into many bronchioles that consist of alveoli. A bunch of alveoli present on a single respiratory bronchiole is termed as a lobule.
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The 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).
Which of the following statements are true of the alveoli and pulmonary capillaries? (Read carefully and select all of the correct statements.)
A. Blood coming into the pulmonary capillaries is low in O2 and high in CO2.
B. The alveolar walls are one cell in thickness.C. The total alveoli provide a large surface area for gas exchange.D. The pulmonary capillaries are made of simple squamous epithelium.
E. Blood leaving the pulmonary capillaries will return to the left atrium of the heart.
Sinus Headaches are caused by:
A. Drainage of the sinuses
B. Inflammation of the sinuses
C. Both
D. None
Chapter 23 Solutions
ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
Ch. 23.1 - Which respiratory structure is associated with the...Ch. 23.1 - Prob. 2WDYLCh. 23.1 - In what ways does the epithelium of the upper...Ch. 23.2 - What changes occur to inhaled air as it passes...Ch. 23.2 - Prob. 5WDYLCh. 23.2 - What two regions of the pharynx contain tonsils?...Ch. 23.2 - How does the larynx assist in increasing abdominal...Ch. 23.2 - What are the three unpaired cartilages in the...Ch. 23.2 - Prob. 9WDYLCh. 23.3 - What is the function of the C-shaped tracheal...
Ch. 23.3 - What are the significant structural differences...Ch. 23.3 - Which of the following respiratory structures are...Ch. 23.3 - The respiratory tract can be damaged from...Ch. 23.3 - Prob. 14WDYLCh. 23.3 - Prob. 15WDYLCh. 23.4 - Match the component of the ling with its air...Ch. 23.4 - Prob. 17WDYLCh. 23.4 - What is the function of serous fluid within the...Ch. 23.4 - Why is the intrapleural pressure normally lower...Ch. 23.5 - Prob. 20WDYLCh. 23.5 - Describe the sequence of events of quiet...Ch. 23.5 - How are larger amounts of air moved between the...Ch. 23.5 - Prob. 23WDYLCh. 23.5 - Which of the following stimuli will cause an...Ch. 23.5 - Are the skeletal muscles of breathing innervated...Ch. 23.5 - The two factors that determine airflow are the...Ch. 23.5 - A person in yoga class is encouraged to take long,...Ch. 23.5 - Prob. 28WDYLCh. 23.6 - Given the same partial pressure for oxygen and...Ch. 23.6 - How do the partial pressures of oxygen and carbon...Ch. 23.6 - Prob. 31WDYLCh. 23.6 - How do the partial pressures of oxygen and carbon...Ch. 23.7 - Why is such a small percentage (about 2%) of...Ch. 23.7 - How is the majority of carbon dioxide transported...Ch. 23.7 - How does oxygen movement occur during alveolar gas...Ch. 23.7 - How does carbon dioxide movement occur during...Ch. 23.7 - Does hemoglobin saturation increase or decrease...Ch. 23.7 - How is oxygen release from hemoglobin during...Ch. 23.8 - How does blood PO2 and PCO2 change if an...Ch. 23.8 - How does blood PO2 and PCO2 change during...Ch. 23.8 - Prob. 41WDYLCh. 23 - Prob. 1DYKBCh. 23 - Prob. 2DYKBCh. 23 - Prob. 3DYKBCh. 23 - Prob. 4DYKBCh. 23 - Prob. 5DYKBCh. 23 - Which areas of the brain contain the respiratory...Ch. 23 - Prob. 7DYKBCh. 23 - Prob. 8DYKBCh. 23 - Prob. 9DYKBCh. 23 - Prob. 10DYKBCh. 23 - Explain how the respiratory tract is organized...Ch. 23 - Describe the relationship of the visceral pleura,...Ch. 23 - List the four processes of respiration, in order,...Ch. 23 - Describe the muscles, volume changes, and pressure...Ch. 23 - Explain how additional air is moved during a...Ch. 23 - Describe bow quiet breathing is controlled by the...Ch. 23 - Explain alveolar and systemic gas exchange.Ch. 23 - List the two means by which oxygen is transported...Ch. 23 - Describe the relationship of PCO2 and hemoglobin...Ch. 23 - List the variables that increase the release of...Ch. 23 - Paramedics arrived at a car accident to find an...Ch. 23 - Use the following to answer questions 24....Ch. 23 - Use the following to answer questions 24....Ch. 23 - Use the following to answer questions 24....Ch. 23 - Prob. 5CALCh. 23 - Prob. 1CSLCh. 23 - The nerve to the sternocleidomastoid muscle was...Ch. 23 - Prob. 3CSL
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- The pleura that surrounds the lungs consists of two layers, the ________.a. visceral and parietal pleurae.b. mediastinum and parietal pleurae.c. visceral and mediastinum pleurae.d. none of the abovearrow_forwardWhich of the following are mechanisms to prevent food from entering the larynx? (Check all that apply.) Select one or more: a. Tipping of epiglottis over glottis b. Movement of the tongue over the inlet to the larynx c. Closure of the glottis d. Contraction of the thyroid cartilage, pinching closed the larynxarrow_forwardVentilation 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_forward
- Which 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_forwardThe source of pulmonary surfactant is:- a. the visceral pleura. b. bronchial glands. c. alveolar capillaries. d. squamous alveolar cells. e. great alveolar cellsarrow_forwardA rapid and shallow ventilatory pattern is calledA. hyperpnea.B. apnea.C. alveolar hyperventilation.D. tachypneaarrow_forward
- The trachea A. Conducts air from the larynx into the bronchi B. Is lined with pseudostratified collated columnar epithelium C. Is supported by smooth muscle D. Only (a) and (b) are correct.arrow_forwardImmediately after the creation of an opening through the thorax intothe pleural cavitya. air flows through the hole and into the pleural cavity.b. air flows through the hole and out of the pleural cavity.c. air flows neither out nor in.d. the lung protrudes through the hole.arrow_forwardWhen the diaphragm and external intercostal muscles contract, which of the following actions does NOT occur? A. Air moves into lungs B. The diaphragm moves inferiorly C. The intrapulmonary pressure decreases D. The intrapleural pressure increases.arrow_forward
- Contraction of the diaphragm and external intercostal muscles is an active process leads to: a. Decrease alveolar pressure in the lungs. b. Lung Expand. c. Thorax epand. d. All of the above are correct. e. Air flow into the lungsarrow_forwardWhich of the following is true regarding respiratory distress syndrome? A. The work of breathing of the infant is reduced B. Type I alveolar cells are not properly synthesizing surfactant C. Sensation of oxygen and carbon dioxide by the chemoreceptors is inadequate D. Surface tension within alveoli is too high so the alveoli collapse E. The alveoli are not big enough yet to allow the infant to properly breathearrow_forwardA.The membrane on the surface of the lung. B.The membrane on the surface of the heart. C.The membrane that lines the wall of the abdominopelvic cavity. D.The membrane on the surface of the stomach. E.The thin, watery fluid located between the pleural membranes. F.The area of the thoracic cavity between the two lungs. G.The muscular structure that separates the thoracic and abdominopelvic cavities. H.The membrane touching the posterior surface of the sternum (breast bone) I.The membrane deep to ribs but superficial to pleural fluid. word choices Visceral pericardium parietal pericardium visceral pleura diaphragm serous fluid parietal peritoneum mediastinum parietal pleura visceral peritoneumarrow_forward
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