LL A&P TEXT- LAB MANUAL/MASTERING ACCES
6th Edition
ISBN: 9780134493985
Author: MARIEB & HOEHN
Publisher: PEARSON C
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Chapter 21, Problem 10MC
Most oxygen carried in the blood is (a) in solution in the plasma (b) combined with plasma proteins, (c) chemically combined with the heme in red blood cells, (d) in solution I the red blood cells.
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Explain how the arterial PO2 and the oxygen content of whole blood are affected by (a) hyperventilation, (b) breathing from a tank containing 100% oxygen, (c) anemia (low red blood cell count and hemoglobin concentration), and (d) high altitude.
Select the best answer or answers from the choices given: The bulk of carbon dioxide is carried (a) chemically combined with the amino acids of hemoglobin as carbaminohemoglobin in the red blood cells, (b) as the ion HCO3− in the plasma after first entering the red blood cell, (c) as carbonic acid in the plasma, (d) chemically combined with the heme portion of Hb.
Select the best answer or answers from the choices given: Most oxygen carried in the blood is (a) in solution in the plasma, (b) combined with plasma proteins, (c) chemically combined with the heme in red blood cells, (d) in solution in the red blood cells.
Chapter 21 Solutions
LL A&P TEXT- LAB MANUAL/MASTERING ACCES
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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- Describe the relationship between the partial pressure of oxygen and the binding of oxygen to hemoglobin.arrow_forwardWhat is oxyhemoglobin? Where does it form?arrow_forwardWhich of the following statements are TRUE: Very low oxygen levels will cause: a) Myoglobin instead of hemeglobin will be used to transfer oxygen to cells b) You might experience feelings similar to sickle-cell anemia c) You might have a higher total concentration of hemeglobin to help transport enough oxygen. d) Oxygen will be more concentrated in the air, resulting in higher saturation of hemeglobinarrow_forward
- Oxygen has an allosteric interaction with hemoglobin. What are the results of this interaction as oxygen a) binds to and b) is released from hemoglobin?arrow_forwardMost of the oxygen transported in blood is A) Attached to the plasma membrane of red blood cells B) Bound to the globin portion of hemoglobin C) Bound to the heme portion of hemoglobin D) Dissolved in the cytoplasm of red blood cellsarrow_forwardIncreased partial pressure of O2 in plasma from 50mmHg to 100 mmHg leads to the following: A) 2 fold increase of O2 carried in blood B) 2 fold increase of O2 bound to hemoglobin C) 2 fold increase of dissolved oxygenarrow_forward
- Which of the following is not true with regards to the oxygen-hemoglobin curve?arrow_forwarda 47 year old man has a haemoglobi concentration of 11g/dL.. Pulmonary function is normal. Which of the following values is most likely to be decreased in this patient? (a) Amount of o2 consumption (b) Amount of o2 dissolved in the blood (c) o2 content of the blood (d) o2 saturation of the blood (e) po2 of his bloodarrow_forwardHow many oxygen molecules bound to hemoglobin to give 50% saturation?a) 6b) 4c) 2d) 7arrow_forward
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