Ch. 23 Respiratory System

What pressure will be present in the space labeled "4"

intrapleural pressure

Inhaling through the nostrils is preferred over the mouth because

it allows better conditioning of the inhaled air

The auditory tubes open into the

nasopharynx.

Identify the structure labeled "7." (Figure 23-1)

oropharynx

Identify the structure labeled "5."

pharyngeal tonsil

Which of the following organs is not part of the lower respiratory system?

pharynx

What is the function of the structure labeled "8"? (Figure 23-1)

prevents food from entering the larynx

Tuberculosis results from what bacteria?

Mycobacterium tuberculosis

Primary bronchi are to ________ as secondary bronchi are to ________.

main bronchi; lobar bronchi

During a choking episode, most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.

Right Primary

Air flows between nasal conchae through the

Superior, Middle, and Inferior Nasal Meatuses

The term hypercapnia refers to

elevated PCO2

During quiet breathing,

inspiration involves muscular contractions and expiration is passive

The thyroid cartilage is also called the

laryngeal prominence and Adam's apple.

Which respiratory organ has a cardiac notch?

left lung

The respiratory epithelium of the conducting airways consists of

pseudostratified ciliated columnar epithelium.

Harry suffers from cystic fibrosis and has severe breathing difficulties. His problems result from

thick secretions that are difficult to transport

The largest cartilage of the larynx is the ________ cartilage

thyroid