Breathing Process: Exhalation

Play an AI-generated podcast conversation about this lesson

What is the result of a decrease in intrapleural pressure?

Decrease in tidal volume

Increase in intrapulmonary pressure

Expansion of the lungs (correct)

Contraction of the diaphragm

What is the primary function of the quadratus lumborum and serratus posterior inferior muscles during forced inspiration?

Help rib elevation

Prevent inward movement of the lower ribs (correct)

Elevate the upper ribs

Contract the diaphragm

What percentage of pulmonary ventilation is accounted for by abdominal breathing during eupnea?

90%

50%

25%

75% (correct)

What occurs during eupnea expiration?

Passive process with no muscle activity Signup and view all the answers

What is the term for breathing produced by contraction of the external intercostal muscles?

Costal or thoracic breathing Signup and view all the answers

What is the tidal volume that enters the lungs during normal resting breathing?

500 ml Signup and view all the answers

What is the role of the sternomastoid and scaleni muscles during forced inspiration?

Elevate the upper ribs Signup and view all the answers

What is the change in intrapulmonary pressure during normal resting breathing?

Decrease from 0 to -1 mmHg Signup and view all the answers

What is the primary inspiratory muscle that contracts during eupnea?

Diaphragm Signup and view all the answers

What is the term for breathing produced by contraction of the diaphragm?

Abdominal breathing Signup and view all the answers

Breathing Process: Exhalation

Podcast Beta

Questions and Answers

What is the result of a decrease in intrapleural pressure?

What is the primary function of the quadratus lumborum and serratus posterior inferior muscles during forced inspiration?

What percentage of pulmonary ventilation is accounted for by abdominal breathing during eupnea?

What occurs during eupnea expiration?

What is the term for breathing produced by contraction of the external intercostal muscles?

What is the tidal volume that enters the lungs during normal resting breathing?

What is the role of the sternomastoid and scaleni muscles during forced inspiration?

What is the change in intrapulmonary pressure during normal resting breathing?

What is the primary inspiratory muscle that contracts during eupnea?

What is the term for breathing produced by contraction of the diaphragm?

More Quizzes Like This

Respiratory System Overview

Respiratory Physiology: Breathing Patterns and Gas Exchange

Respiratory Physiology Lecture 2: The Work of Breathing

Breathing and the Respiratory System

Upgrade to continue