Textbook Question
Differentiate clearly between minute ventilation and alveolar ventilation rate
Which provides a more accurate measure of ventilatory efficiency, and why?
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Ch. 22 The Respiratory System
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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Table of contents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units21
- Ch. 4 Tissue: The Living Fabric20
- Ch. 5 The Integumentary System11
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue19
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity32
- Ch. 14 The Autonomic Nervous System19
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System23
- Ch. 17 Blood25
- Ch. 18 The Cardiovascular System: The Heart24
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues14
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Not the one you use?Change textbook
Chapter 22, Problem 17
Define hyperventilation
If you hyperventilate, do you retain or expel more carbon dioxide?
What effect does hyperventilation have on blood pH?
Verified step by step guidance1
Step 1: Define hyperventilation by explaining that it is a condition characterized by breathing at an abnormally rapid rate, which increases the amount of air entering the lungs.
Step 2: Understand the effect of hyperventilation on carbon dioxide levels by recognizing that rapid breathing causes more carbon dioxide (CO\_2) to be expelled from the body than normal.
Step 3: Explain that because CO\_2 is expelled more quickly, its concentration in the blood decreases, a condition known as hypocapnia.
Step 4: Connect the decrease in CO\_2 to blood pH by noting that CO\_2 reacts with water in the blood to form carbonic acid, so less CO\_2 means less carbonic acid and thus a rise in blood pH (making the blood more alkaline).
Step 5: Summarize that hyperventilation leads to expelling more CO\_2, which causes blood pH to increase, resulting in respiratory alkalosis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Hyperventilation
Hyperventilation is the condition of breathing at an abnormally rapid rate, which increases the amount of air entering the lungs. This leads to excessive expulsion of carbon dioxide from the bloodstream, disrupting normal gas exchange.
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Guided course
6:07
Respiration Example 2
Carbon Dioxide Expulsion During Hyperventilation
During hyperventilation, more carbon dioxide is expelled from the body than usual because of the increased breathing rate. This reduces the partial pressure of CO2 in the blood, affecting the body's acid-base balance.
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04:19Carbon
Effect of Hyperventilation on Blood pH
Hyperventilation causes a decrease in blood carbon dioxide levels, which leads to respiratory alkalosis—a rise in blood pH. This makes the blood more alkaline, potentially causing symptoms like dizziness or tingling.
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Related Practice
Textbook Question
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
Textbook Question
Describe the functional relationships between volume changes and gas flow into and out of the lungs.
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Textbook Question
Describe age-related changes in respiratory function.
Textbook Question
A member of the 'Blues' gang was rushed into an emergency room after receiving a knife wound in the left side of his thorax. The diagnosis was pneumothorax and a collapsed lung. Explain exactly
Why the lung collapsed?
Why only one lung (not both) collapsed?
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Textbook Question
Briefly explain the anatomical 'reason' why most men have deeper voices than boys or women.