교과서 질문
Clearly explain the difference between external and internal respiration.
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Ch. 13 The Respiratory System
Marieb13th EditionEssentials of Human Anatomy & PhysiologyISBN: 9780135624340
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Table of contents
- Ch. 1 The Human Body: An Orientation23
- Ch. 2 Basic Chemistry22
- Ch. 3 Cells and Tissues20
- Ch. 4 Skin and Body Membranes13
- Ch. 5 The Skeletal System38
- Ch. 6 The Muscular System26
- Ch. 7 The Nervous System26
- Ch. 8 Special Senses12
- Ch. 9 The Endocrine System24
- Ch. 10 Blood22
- Ch. 11 Cardiovascular System29
- Ch. 12 The Lymphatic System and Body Defenses21
- Ch. 13 The Respiratory System7
- Ch. 14 The Digestive System and Body Metabolism13
- Ch. 15 The Urinary System23
- Ch. 16 The Reproductive System15
13장, 문제 3
More than one choice may apply.
During inspiration, intrapulmonary pressure is
a. Greater than atmospheric pressure
b. Less than atmospheric pressure
c. Greater than intrapleural pressure
d. Less than intrapleural pressure
검증된 단계별 안내1
Understand the concept of inspiration: During inspiration, the diaphragm and external intercostal muscles contract, increasing the thoracic cavity's volume and decreasing the pressure inside the lungs (intrapulmonary pressure). This allows air to flow into the lungs due to the pressure gradient.
Compare intrapulmonary pressure to atmospheric pressure: During inspiration, intrapulmonary pressure becomes less than atmospheric pressure, creating a pressure gradient that drives air into the lungs.
Compare intrapulmonary pressure to intrapleural pressure: Intrapleural pressure is always lower than intrapulmonary pressure during normal breathing. This pressure difference prevents lung collapse and maintains the negative pressure in the pleural cavity.
Analyze the options: Based on the physiological principles, determine which statements correctly describe the pressure relationships during inspiration.
Review the correct answers: Ensure that the selected answers align with the mechanics of breathing and the pressure gradients involved during inspiration.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
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주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Intrapulmonary Pressure
Intrapulmonary pressure, also known as alveolar pressure, is the pressure within the lungs. During inspiration, this pressure decreases as the diaphragm contracts and the thoracic cavity expands, allowing air to flow into the lungs. Understanding this concept is crucial for grasping how air moves in and out of the respiratory system.
추천 영상:
가이드 코스
5:46
Formalizing Pressure Relationships in the Lungs
Atmospheric Pressure
Atmospheric pressure is the pressure exerted by the weight of the air in the atmosphere surrounding the Earth. It is typically measured at sea level and is approximately 760 mmHg. During inspiration, intrapulmonary pressure must drop below atmospheric pressure to facilitate airflow into the lungs, making this concept essential for understanding respiratory mechanics.
추천 영상:
가이드 코스
6:12Partial Pressure
Intrapleural Pressure
Intrapleural pressure is the pressure within the pleural cavity, which is the space between the lungs and the chest wall. This pressure is always negative relative to intrapulmonary pressure, which helps keep the lungs inflated. During inspiration, intrapleural pressure decreases further, enhancing the pressure gradient that allows air to flow into the lungs.
추천 영상:
가이드 코스
5:46Formalizing Pressure Relationships in the Lungs
관련 실천
교과서 질문
Which of the following represents intrapleural pressure?
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교과서 질문
More than one choice may apply.
Which of the following changes will accompany the loss of lung elasticity associated with aging?
a. Increase in tidal volume
b. Increase in inspiratory reserve volume
c. Increase in residual volume
d. Increase in vital capacity
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