Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 46, Problem 9TYU
Summary Introduction
Introduction: The diving mammals have higher amount of myoglobin concentrations. Myoglobin pigments are present in muscles of mammals that store oxygen, which is involved in diving reflex. A group of physiological mechanisms called diving reflex occurs that includes a decrease in the
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All human systems have the concept involving the flow of a molecule through system structures.
(a) Using a flowchart (word, with > symbols), illustrate the path of air during exhalation.
(b) Describe the muscular action of the diaphragm during exhalation.
I forgot explain and tell me why
The most efficient vertebrate respiratory system is that of (a) amphibians (b) birds (c) reptiles (d) mammals (e) humans
Respiratory System
Examine an H&E slide of a transverse section of the trachea provided by the diagram:
1.a) Still at a high power, how many nuclear (cell) layers can you observe?
1. b) Why is the epithelium called pseudostratified?
2.a) Look for goblet cells; what three functions do mucus produced by these cells serve?i.ii.iii.
2.b) Besides globlet cells, what other four types of cells are present in the epithelium?I.ii.iii.iv.
3. The epithelium is supported by a lamina priopria of loose connective tissue. Which two connective tissue fibres occur in this sub-layer?i.ii.
Chapter 46 Solutions
Biology (MindTap Course List)
Ch. 46.1 - Compare the advantages and disadvantages of air...Ch. 46.1 - What are some advantages of gas exchange in air...Ch. 46.2 - Describe the following adaptations for gas...Ch. 46.2 - Why are specialized respiratory structures...Ch. 46.2 - How does gas exchange differ among the following...Ch. 46.2 - How does the countercurrent exchange system...Ch. 46.3 - Prob. 3LOCh. 46.3 - Prob. 4LOCh. 46.3 - Prob. 5LOCh. 46.3 - Describe the regulation of breathing in humans and...
Ch. 46.3 - What is the sequence of inhaled airflow through...Ch. 46.3 - Prob. 2CCh. 46.3 - Prob. 3CCh. 46.3 - Prob. 4CCh. 46.4 - Prob. 7LOCh. 46.4 - Prob. 1CCh. 46.4 - Prob. 2CCh. 46 - Test Your Understanding 1. Which of the following...Ch. 46 - Prob. 2TYUCh. 46 - Prob. 3TYUCh. 46 - Prob. 4TYUCh. 46 - Test Your Understanding 5. Which sequence most...Ch. 46 - Prob. 6TYUCh. 46 - Test Your Understanding 7. According to Ficks law...Ch. 46 - Prob. 8TYUCh. 46 - Prob. 9TYUCh. 46 - Prob. 10TYUCh. 46 - Test Your Understanding 11. VISUALIZE Draw and...Ch. 46 - Test Your Understanding 12. EVOLUTION LINK What...Ch. 46 - Test Your Understanding 13. INTEREPT DATA Look at...Ch. 46 - Test Your Understanding 14. PREDICT What problems...Ch. 46 - Prob. 15TYUCh. 46 - EVOLUTION LINK Aquatic mammals such as whales and...Ch. 46 - Prob. 17TYU
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- Test Your Understanding 12. EVOLUTION LINK What are the advantages of having millions of alveoli rather than a pair of simple, balloonlike lungs?arrow_forwardIf alveolar ventilation is 4200 mL/min, respiratory frequency is 12 breaths per minute, and tidal volume is 500 mL, what is the anatomical-dead-space ventilation? (a) 1800 mL/min (c) 350 mL/min (b) 6000 mL/min (d) 1200 mL/minarrow_forward(a) Differentiate clearly between minute ventilation and alveolar ventilation rate. (b) Which provides a more accurate measure of ventilatory efficiency, and why?arrow_forward
- 16. Why are some divers, swimmers, singers and wind instrument players able hold their breath for so long? (Hint: exercise and muscles of respiration....)arrow_forwardAir moves into the alveoli as a result of the: (A)Decreased pressure in the chest cavity (B) Relaxation of the diaphragm (C) Rising pressure in the alveoli (D) Rising pressure in the chest cavityarrow_forward7. All the following increase the rate of diffusion of gases through the respiratory membrane EXCEPT: (a) Surface area of respiratory membrane (b) Pressure gradient across the membrane (c) Thickness of the membrane (d) Temperature 8. All the following increase cause shift of O2 - HB dissociation curve to the right EXCEPT: (a) Increase temperature (b) Increase CO2 (c) Increase pH (d) Increase 2,3-diphosphoglycerate (2,3-DPG) 9. The powerful phagocytic blood cell is: (a) Eosinophil (b) Neutrophil (c) Lymphocyte (d) Monocyte 10. The pacemaker of the heart is: (a) The atrioventricular node (b) The sinoatrial node (c) The atrioventricular bundle (d) The bundle branches 11. Contractility of the heart is increased by: (a) Exercise (b) Parasympathetic stimulation (c) Bleeding (d) Heart failure 12. P-wave in electrocardiogram (ECG) means: (a) Ventricular contraction (b) Atrial contraction (c) Ventricular relaxation (d) Atrial relaxation 13. Which gastric gland secretes pepsinogen? (a) Mucus…arrow_forward
- equation. Droduct Property ess Your Learning Direction: Write the capital letter of the correct answer. 1. Which of the following statements about the human respiratory system is NOT TRUE? A. when we breathe in, air travels from the pharynx to the trachea B. the bronchioles branch into bronchi C. Alveolar ducts connect to the alveolar sacs D. gas exchange between the lungs and the blood takes place in the alveolus 2. Which of the following statements about the circulatory system is NOT TRUE? A. blood in the pulmonary vein is deoxygenated B. blood in the inferior vena cava is deoxygenated C. blood in the pulmonary artery is deoxygenated D blood in the gorto in ouganntodarrow_forwardRespiratory System Examine an H&E slide of a transverse section of the trachea or main bronchus, and respond to the following. 1.a) Still at a high power, how many nuclear (cell) layers can you observe? 1. b) Why is the epithelium called pseudostratified? 2.a) Look for goblet cells; what three functions do mucus produced by these cells serve?i.ii.iii. 2.b) Besides globlet cells, what other four types of cells are present in the epithelium?I.ii.iii.iv. 3. The epithelium is supported by a lamina priopria of loose connective tissue. Which two connective tissue fibres occur in this sub-layer?i.ii.arrow_forwardWhich of the following respiratory systems is notclosely associated with a blood supply?(A) the lungs of a vertebrate(B) the gills of a fish(C) the tracheal system of an insect(D) the skin of an earthwormarrow_forward
- (a) In the model lung demonstration, the bell jar is filled with air. What is in the pleural cavity in the t horax? (b) Compare the relative size of the pleural space in the model lung to that in the human lung.arrow_forwardExercise 2: At the level of the pulmonary alveoli, hemoglobin (Hb) in red blood cells fixes oxygen gas (O2) forming an unstable product: oxyhemoglobin (HbO2). In the presence of carbon monoxide (CO) in the alveoli, hemoglobin fixes (CO) forming a stable product (HBCO). N.B. CO: a harmful gas contained in the fume of tobacco. Studies showed the effect of (CO) on the transport of 02 gas by hemoglobin. The results of these studies are shown in the table below. Rate of CO in the alveoli (in %) 0.5 1.5 2.5 Quantity of Hb02 in blood (in %) 90 80 70 60 50 1- Draw the curve showing the variation of the quantity of (HbO2) in blood in function of the rate of (C0) in the alveoli. 2- Analyze these results. Derive the effect of (CO) on the transport of oxygen gas by hemoglobin.arrow_forward49) Before air begins to exit the lungs (exhalation), after inhalation occurs: Group of answer choices The pressure in the alveoli increases Air flows into the lungs The volume of the alveoli stays the same 50) Refractory periods in cardiac muscle are longer in duration than in skeletal muscle. Group of answer choices False True 51) According to Henry’s Law, if the partial pressure of a gas increases, the amount of that gas that can dissolve in a liquid _______________. Group of answer choices Decreases Increases Stays the same 52) If oxygen decreases to very low levels, the heart responds initially by decreasing the heart rate. Group of answer choices False Truearrow_forward
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Respiratory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=v_j-LD2YEqg;License: Standard youtube license