RESPIRATORY SYSTEM

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False

Air entering the lungs is filtered through the pharynx.

alveoli

Air entering the lungs terminates in the:

False

Air enters the lungs through the esophagus.

epiglottis

An elastic cartilage located at the root of the tongue

bronchial tube

Smaller branches of the bronchi within the lungs

pharynx

The back part of the throat cavity

respiratory

The exchange of oxygen and carbon dioxide within the body is accomplished by the _____________ system.

trachea

The windpipe is a common term for the _________.

alveoli

Tiny sacs within the lungs which increase the respiratory surface

cigarette smoking

A major cause of emphysema as stated in the text is:

bronchiole

A very tiny tube that dead end in a sac within the lungs

False

External respiration includes expelling CO2 from the cells.

decreased

Reduction of gas diffusion as a result of ____________ alveolar surface area is a medical condition known as emphysema.

cilia

Short filaments which wave to move mucus and debris out of the lungs

larynx

The "voice box," which contains the vocal cords in the neck

True

The absorption of oxygen into individual cells is part of respiration.

False

The diaphragm muscles must contract in order to force air out of the lungs (exhale).

False

The lungs contain elastic muscle tissue to permit inhalation.

diaphragm

The muscle tissue assemblage which permits expansion of the lungs is called the _______.

epiglottis

The tissue which diverts food from the trachea upon swallowing is the ___________.

bronchi

The two tubes into which the trachea divide to go into each lung

Remove particles which have entered the lungs and stuck to the bronchial mucus.

What is the function of the cilia?

Blood going to cells receives O2 Blood coming from the cells releases CO2

What takes place through the tissues of the alveoli?


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