AnswersAnatomy Physiology BAnatomy of the Lower Respiratory System

Anatomy of the Lower Respiratory System Answers

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1
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What is the lower respiratory system?

A
The organ system containing the nose, throat, and lungs.
B
The passageway by which carbon dioxide exits the body.
C
The passageway by which air enters the lungs.
D
The group of organs and tissues of the respiratory system that reside in the chest.
2
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How is the lower respiratory system related to the circulatory system?

A
The lower respiratory system moves oxygen into the blood; the circulatory system delivers blood to the body.
B
The lower respiratory system delivers blood to the body; the circulatory system moves oxygen into the blood.
C
The lower respiratory system moves oxygen into the blood; the circulatory system delivers air into the lungs.
3

The bronchial tubesalveolilungslobes branch off from the trachea; one enters each lung.

A
bronchial tubes
B
alveoli
C
lungs
D
lobes
4

Use the drop-down menus to complete the sentences.

Answers:
Use the drop-down menus to complete the sentences.:alveoli
Use the drop-down menus to complete the sentences.:pleural cavity
Use the drop-down menus to complete the sentences.:oxygen
Use the drop-down menus to complete the sentences.:carbon dioxide
5

Air first enters the lower respiratory system through the bronchial tubesbronchiolestrachealungs.

A
bronchial tubes
B
bronchioles
C
trachea
D
lungs
6

The bronchioleslungslobes are the primary organs of the lower respiratory system.

A
bronchioles
B
lungs
C
lobes
7

What are the lobes of the lungs?

A
walls of tissue that separate parts of the lungs
B
muscles that surround the lungs and facilitate breathing
C
the points where oxygen is moved into the blood
D
an area of the lung that is kept separate from other areas
8

What is the function of the trachea?

A
to move oxygen into the blood
B
to carry air deep into the lungs
C
to protect the lungs and attach them to the ribcage
D
to serve as a passageway for air between the upper and lower respiratory systems
9

What is the function of the bronchioles?

A
to move oxygen into the blood
B
to carry air deep into the lungs
C
to protect the lungs and attach them to the ribcage
D
to serve as a passageway for air between the upper and lower respiratory systems
10

How do the lungs help maintain the body’s pH balance?

A
by bringing oxygen-rich air into the body
B
by removing foreign particles from the lower respiratory system
C
by removing carbon dioxide from the body
D
by moving air into the alveoli
11

The lungs contain all of the alveoliepithelial cellslobulesbronchioles that move oxygen into the blood.

A
alveoli
B
epithelial cells
C
lobules
D
bronchioles
12

The bronchial tubesalveolilungslobes are the sacs at the end of the bronchioles.

A
bronchial tubes
B
alveoli
C
lungs
D
lobes
13

Bronchial tubesBronchiolesThe pleural cavity branch(es) into the lungs, allowing for the maximum amount of space for oxygen to be moved into the blood.

A
Bronchial tubes
B
Bronchioles
C
The pleural cavity
14

What are fissures within the lungs?

A
walls of tissue that separate parts of the lungs
B
muscles that surround the lungs and facilitate breathing
C
the points where oxygen is moved into the blood
D
an area of the lung that is kept separate from other areas
15

What is the function of the alveoli?

A
to move oxygen into the blood
B
to carry air deep into the lungs
C
to protect the lungs and attach them to the ribcage
D
to serve as a passageway for air between the upper and lower respiratory systems
16

What is the function of the pleural cavity?

A
to move oxygen into the blood
B
to carry air deep into the lungs
C
to protect the lungs and attach them to the ribcage
D
to serve as a passageway for air between the upper and lower respiratory systems
17

How do epithelial cells aid in the function of the lower respiratory system?

A
by bringing oxygen-rich air into the body
B
by removing foreign particles from the lower respiratory system
C
by removing carbon dioxide from the body
D
by moving air into the alveoli
18

The bronchial tubebronchiolepleural cavity is the fluid-filled space that surrounds the lungs.

A
bronchial tube
B
bronchiole
C
pleural cavity

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