Respiratory System (Wk 13 - Exam 4))

Question 1

What’s the structure labeled ‘A’ that’s between the Lungs and Larynx?

Answer 1

Trachea

https://drive.google.com/file/d/1IzlY0FU6R1pyLei5mXj_XMmLr0I94al4/view?usp=drivesdk

Question 2

Would the Trachea be in the respiratory or conducting zone?

Answer 2

Conducting zone

Question 3

Would the trachea be in the upper or lower respiratory tract?

Answer 3

Lower respiratory tract

Question 4

What tissue type would support the Trachea to do its tasks?

Answer 4

Ciliated Pseudostratified Columnar Epithelium

Question 5

Function of Conducting Zone

Answer 5

Warms, cleans, and humidifies air.

Question 6

Conducting zone has organs that move ___, but don’t participate in ____________.

Answer 6

air and gas exchange

Question 7

Where does the conducting zone start and end?

Answer 7

Nose to terminal bronchioles

Question 8

The Respiratory zone has organs that participate in ________________.

Answer 8

gas exchange

Question 9

Where does the Respiratory zone start and end?

Answer 9

Respiratory bronchioles to Alveoli

Question 10

Not all ___ reaches the respiratory zone and is involved in gas exchange.

Answer 10

air

Question 11

What does the Upper respiratory tract include?

Answer 11

Nose, paranasal sinuses, pharynx, and larynx

Question 12

What does the Lower respiratory tract include?

Answer 12

Trachea, bronchi, and lungs

Question 13

How does the conduction zone’s task differ from respiratory zone’s task of the respiratory system?

Answer 13

Conducting zone = Warm, humidifies, and cleans air

Respiratory zone = Gas exchange

Question 14

Order of Respiratory system

Answer 14

Nose

Nasal cavity

Pharynx

Larynx

Trachea

Main (primary) bronchi

Lobar (secondary) bronchi

Segmental (tertiary) bronchi

Terminal bronchiole

Respiratory bronchiole

Alveolar duct

Alveolar sac

Alveoli

O2 goes to bloodstream & CO2 exits the bloodstream

Blood

Question 15

Imagine that disease X kills type II alveolar cells, which produce pulmonary surfactant. Discuss how that might affect lung function.

Answer 15

Water accumulates and fills up the lungs with water.

Also, the surface tension would increase if this cell gets killed.

Question 16

What are Type I alveolar cells?

Answer 16

• Squamous epithelial cell of the alveolus
• 97% of alveolar surface

Question 17

Function of Type II alveolar cells

Answer 17

Releases (secretes) pulmonary surfactant to (reduces) decrease surface tension

Question 18

Function of Alveolar macrophages

Answer 18

Gets rid of debris and pathogens in alveolus

Question 19

Shape and function of Lungs

Answer 19

Cone-shaped organs that exchange gases.

Question 20

What are Lobes?

Answer 20

Single sections of a Lung

Question 21

How many lobes are on each lung?

Answer 21

• Right lung has 3 lobes
• Left lung has 2 lobes

Question 22

What is Cardiac notch and its task?

Answer 22

Left lung’s indention, which helps (accommodates) the heart

Question 23

What is Hilum?

Answer 23

Location on medial surface where nerves, vessels, and a bronchus go to

Question 24

What is the Pleura?

Answer 24

Serous membrane that surrounds the Lungs and has double layers

Question 25

What is the Parietal pleura?

Answer 25

Outermost layer that links to thoracic wall

Question 26

What is Visceral pleura ?

Answer 26

Innermost layer that covers the Lungs’ surface

Question 27

What is the Pleural cavity?

Answer 27

Space between visceral and parietal pleurae - contains lubricating serous fluid

Question 28

Discuss some of the structural differences that would allow the conductive zone and respiratory zone to have different functions.

Answer 28

"Conducting zone cleans, humidifies, and warms air and is more thick, while the Respiratory zone is thinner, which allows gases to flow through" (Rysdon).