SCI 335 Week 13 Quiz 3

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.

 

 

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

 

 

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

 

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.

 

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.