Normal breathing is dependant on which of the following factors?

A) Positive intrapleural pressure
B) Negative intrapleural pressure
C) Absence of intrapulmonic pressure
D) Equal intrapleural and intrapulmonic pressures

Question

Rachel Adair · Accepted Answer

Final Answer : B, Explanation :  Normal breathing depends on negative intrapleural pressure, which is created by the downward traction of the diaphragm and the elastic recoil of the lungs. This negative pressure helps to keep the airways open and allows air to flow into the lungs during inspiration. When the diaphragm and other respiratory muscles relax, the elastic recoil of the lungs causes expiration. Positive intrapleural pressure, absence of intrapulmonic pressure, and equal intrapleural and intrapulmonic pressures would all hinder normal breathing.

Normal breathing is dependant on which of the following factors?

A) Positive intrapleural pressure
B) Negative intrapleural pressure
C) Absence of intrapulmonic pressure
D) Equal intrapleural and intrapulmonic pressures

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Learning Objectives

Learning Objectives

Related questions

Normal breathing is dependant on which of the following factors?A) Positive intrapleural pressureB) Negative intrapleural pressureC) Absence of intrapulmonic pressureD) Equal intrapleural and intrapulmonic pressures

Definitions

Learning Objectives

Learning Objectives

Related questions

Normal breathing is dependant on which of the following factors?

A) Positive intrapleural pressure
B) Negative intrapleural pressure
C) Absence of intrapulmonic pressure
D) Equal intrapleural and intrapulmonic pressures