Anatomy Chapter 14

Question 1

Which gas is found in the atmosphere?

Answer 1

Oxygen

Nitrogen

Carbon dioxide

Question 2

The process of moving gas into and out of the respiratory system is:

Answer 2

ventilation.

Question 3

The process of gas exchange at the body tissues is called:

Answer 3

internal respiration.

Question 4

Gas exchange takes place across the:

Answer 4

alveolar–capillary membrane.

Question 5

Which of the following takes place in the upper airways?

Olfaction

Warming of air

Filtering of air

All of the above

Answer 5

All of the above

Question 6

Which of the following separates the nasal cavity into right and left halves?

Answer 6

Nasal septum

Question 7

Which of the following is not a role of the sinuses?

Intensifies voice sound

Makes the head lighter

Required for speech

Assists in moisturizing inhaled air

Answer 7

Required for speech

Question 8

The medical term for the sense of smell is _______________ and for producing sound is _______________.

Answer 8

olfaction, phonation

Question 9

The hairlike structures that propel mucus in the airways are:

Answer 9

cilia.

Question 10

Which of the following is not true about the sinuses?

They are air-filled cavities.

They are located in the skull and around the nose.

They help to lighten the head.

Gas exchange occurs there.

Answer 10

Gas exchange occurs there.

Question 11

Food is prevented from entering the _______________ when eating by the closure of the _______________.

Answer 11

trachea; epiglottis

Question 12

The vocal cords are found in the:

Answer 12

larynx.

Question 13

The oropharynx is lined with _______________, whereas the nasopharynx is lined with _______________.

Answer 13

stratified squamous epithelium; respiratory mucosa

Question 14

Voice is normally produced by vibration of the closed vocal cords during:

Answer 14

exhalation.

Question 15

The upper airway begins at the _______________ and ends at the _______________.

Answer 15

nares, vocal cords

Question 16

The pharynx can be divided into three sections. Which of the following is one of the three sections?

Trachea

Esophagus

Larynx

Oropharynx

Answer 16

Oropharynx

Question 17

The largest bronchus or trunk of the tracheobronchial tree is the:

Answer 17

trachea

Question 18

The site of bifurcation of the right and left lungs is called the:

Answer 18

carina

Question 19

If an object is aspirated into the airways, it is most likely to go to the:

Answer 19

right lung.

Question 20

The first portion of the airway where gas exchange begins is the:

Answer 20

respiratory bronchiole.

Question 21

The alveolar layer that lowers surface tension to keep the alveoli expanded is the:

Answer 21

surfactant layer.

Question 22

The alveolar cell that allows for gas exchange is the:

Answer 22

squamous cell.

Question 23

What are the three types of cells found in the alveoli?

Answer 23

Squamous pneumocytes, granular pneumocytes, and macrophages

Question 24

The iron-containing molecule responsible for transporting oxygen in the blood is _______________.

Answer 24

hemoglobin

Question 25

The _______________ pleura lines the thoracic cavity.

Answer 25

parietal

Question 26

The portion of the sternum where CPR is performed is the:

Answer 26

body

Question 27

The _______________ nerve innervates the main breathing muscle, called the _______________.

Answer 27

phrenic; diaphragm

Question 28

The amount of air moved during typical resting ventilation is called:

Answer 28

tidal volume.

Question 29

As CO2 rises, chemoreceptors send signals to the _______________ to _______________ ventilation.

Answer 29

medulla oblongata; increase

Question 30

The process of producing red blood cells is called _______________.

Answer 30

hematopoiesis