SCI 335 Week 13 Quiz 3 | Wilmington University

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SCI 335 Week 13 Quiz 3 | Wilmington University

SCI 335 Week 13 Quiz 3 | Wilmington University

Week 13 : Test: Chapters 16 

Question 1

The cartilaginous structure at the base of the tongue that helps to prevent food and liquid from entering the trachea during swallowing is the ______. 

Question 2

The pharynx functions as a ______, whereas the larynx functions as a ______.

• common passageway for air and food; passageway for air only
• common passage for air and food; passageway for food only
• site to prevent objects from entering the trachea; site to prevent objects from entering the larynx
• passageway for air only; passageway for air and food

 Question 3

The right lung is composed of ______ lobes; the left lung is composed of ______ lobes.

• superior, middle, and inferior; superior and inferior
• superior and inferior; superior, middle, and inferior
• anterior, posterior, and lateral; superior and inferior
• superior, middle, and inferior, anterior and posterior

 Question 4

The walls of the alveoli are composed of

• simple squamous epithelium.
• loose connective tissue.
• ciliated columnar epithelium.
• stratified squamous epithelium.

SCI 335 Week 13 Quiz 3 | Wilmington University

Question 5

The vocal cords are located within the

• trachea.
• oral cavity.
• larynx.
• pharynx.

Question 6

The respiratory center is located in the medulla oblongata and the ______ of the brain stem.

• pons
• pon 

Question 7

A voluntary increase in the rate and depth of breathing is called ______.

• hyperventilation

SCI 335 Week 13 Quiz 3 | Wilmington University

Question 8

The left lung is larger than the right lung and is divided into three lobes.

• True
• False

Question 9

The glottis is the opening between the vocal cord.

• True
• False

Question 10

The visceral and parietal pleural membranes are normally held together by

• loose connective tissue.
• dense connective tissue.
• surfactant.
• surface tension.

Question 11

Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin.

• True
• False

SCI 335 Week 13 Quiz 3 | Wilmington University

Question 12

The force that causes air to move into the lungs during inspiration is supplied by

• atmospheric pressure.
• abdominal wall muscles.
• the diaphragm.
• external intercostal muscles.

Question 13

Ordinary air is about 21% oxygen and 78% nitrogen.

• True
• False

Question 14

The amount of oxygen released from oxyhemoglobin ______ as the concentration of carbon dioxide

• increases.
• increases

 Question 15

The ventral respiratory group is not responsible for innervating

• the internal intercostals.
• the diaphragm.
• the abdominal muscles.
• the external intercostals.

SCI 335 Week 13 Quiz 3 | Wilmington University

Question 16

Of the respiratory air volumes listed, which one has the largest volume?

• vital capacity
• inspiratory reserve volume
• expiratory reserve volume
• tidal volume

Question 17

Carbon monoxide bonds to hemoglobin more effectively than does oxygen.

• True
• False

Question 18

When carbon dioxide bonds to hemoglobin, the compound ______ is formed.

Question 19

The volume of air that enters (or leaves) during a single respiratory cycle is termed

• VC.
• TV.
• IRV.
• ERV.

Question 20

The enzyme carbonic anhydrase causes

• water to react with hydrogen ions.
• carbon dioxide to react with water.
• carbon dioxide to react with bicarbonate ions.
• water to react with bicarbonate ions.