Cardiovascular/Respiratory

The upper respiratory tract includes all of the following except the:

nose.

• trachea.

• pharynx.

• nose.

• larynx.

The lower respiratory tract includes all of the following except the:

• trachea.

• larynx.

• alveoli

• bronchi

The respiratory mucosa helps protect the respiratory system by:

• trapping bacteria, moving contaminated mucus towards the pharynx, and having ciliated epithelium beat in only one direction.

• moving contaminated mucus toward the pharynx.

• having ciliated epithelium beat in only one direction.

• trapping bacteria.

The thyroid cartilage (Adam’s apple) is part of the:

• trachea

• oropharynx

• larynx

• nasopharynx

The function of the epiglottis is to:

• anchor the vocal cords.

• allow food to enter the trachea.

• change the pitch of the voice.

• keep food from entering the trachea.

The trachea:

• is also called the windpipe, contains C-shaped rings of cartilage, and is lined by respiratory mucosa.

• is also called the windpipe.

• is lined by respiratory mucosa.

• contains C-shaped rings of cartilage.

The function of the surfactant in the lung is to help:

• increase the surface tension of water in the alveoli.

• trap bacteria and dust.

• reduce the surface tension of water in the alveoli.

• move bacteria and dust toward the pharynx.

Which of the following statements is correct?

• The right lung has two lobes; the left lung has three lobes.

• The apex of the lung rests against mediastinum.

• The apex of the lung rests against the diaphragm.

• The lungs are covered by the visceral pleura.

The exchange of oxygen and carbon dioxide between the alveoli and blood in the lung is called:

• cellular respiration.

• breathing.

• external respiration.

• internal respiration.

The exchange of oxygen and carbon dioxide between the blood and cells throughout the body is called:

• breathing.

• internal respiration.

• external respiration.

• cellular respiration.