Ch. 20 - Respiratory PhysiologyWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Physiology
Ch. 2 - Molecules and Molecular Interactions
Ch. 3 - Cells and Tissues
Ch. 4 - Cell Metabolism: Bioenergetics, Enzymes, and Respiration
Ch. 5 - Membrane Dynamics
Ch. 6 - Cell Communication
Ch. 7 - Integumentary System
Ch. 8 - Bone and Cartilage
Ch. 9 - Skeletal System
Ch. 10 - Joints
Ch. 11 - Muscles
Ch. 12 - The Nervous System I: Neurons and Neuronal Networks
Ch. 13 - The Nervous System II: The Central Nervous System
Ch. 14 - The Autonomic Nervous System
Ch. 15 - Sensory Physiology
Ch. 16 - The Endocrine System
Ch. 17 - Cardiovascular Physiology I: The Heart
Ch. 18 - Cardiovascular Physiology II: Blood, Blood Vessels, Circulation, and Exchange
Ch. 19 - The Urinary System
Ch. 20 - Respiratory Physiology
Ch. 21 - Acid-Base Balance-- Controlling Blood pH
Ch. 22 - Introduction to the Immune System
Ch. 23 The Lymphatic System
Ch. 23 - The Digestive System
Ch. 24 - Regulation of Metabolism and Energy Balance
Ch. 25 - Human Sexual Reproduction and Development

Concept #1: Compliance and Elasticity

Concept #2: Resistance to Airflow

Concept #3: Surface Tension and the Law of LaPlace

Practice: Albuterol is β2 adrenergic receptor agonist used to treat asthma attacks; when it binds to β2 receptors on smooth muscle cells in the walls of airways it causes the smooth muscle cells to relax, leading to bronchodilation. Which of the following variables in Poiseuille’s Law is directly affected by the activity of albuterol and what is the resulting effect on resistance to flow (R) through the airways?

Practice: Two alveoli are next to each other in the lungs, connected by a bronchiole. Alveolus X has radius of 5; alveolus Y has a radius of 10. In which direction is air likely to flow?