Exam 17: Mechanics of Breathing

Alveolar ventilation refers to the

A typical value for intrapleural pressure is ________ mm Hg.

Ventilation is also known as

In the disease ________,many symptoms are due to destruction of elastic fibers in the lung.

Total cross-sectional area ________ with each division of the airways.

Joe is playing in an intramural football game when he is tackled so hard that he breaks a rib.He can actually feel a piece of the rib sticking through the skin,and he is having a difficult time breathing.Joe probably is suffering from

During the winter,Brad sleeps in a dorm room that lacks a humidifier for the heated air.In the mornings he notices that his nose is "stuffy," similar to when he has a cold,but after showering and drinking some water,the stuffiness disappears until the next morning.What might be the cause of Brad's nasal condition?

List and describe the lung volumes.

The ability of a lung to recoil,or recover from stretch,is called ________.

An increase in the rate and depth of breathing is known as ________.

Match the lung volume with its description. -the extra amount actively (forcibly)exhaled after a normal exhalation

Define lung capacity,and give a specific example.(Note: There is a specific physiological definition; don't just define "capacity" in general terms.)

During normal expiration,

A typical residual volume (in milliliters)for a healthy,70 kg male is ________.

The lungs are enclosed in ________ membranes.

Distinguish between cellular and external respiration.

Active expiration is produced by contraction of

What is surfactant? Why is it important?

The airway between the larynx and the primary bronchi is the

A powerful bronchoconstrictor released by mast cells is ________.