Functional Anatomy and Role of Gases Flashcards Preview

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Flashcards in Functional Anatomy and Role of Gases Deck (62)
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1

I am an air particle in the nose and want to travel to the alveoli to perform gas exchange. What am I going to be going through?

1. Larynx
2. Trachea
3. Bifurcation of Trachea
4. Main Bronchi
5. Bronchioles
6. Terminal Bronchioles
7. Respiratory Bronchioles
8. Alveoli

2

Which structures of the lung are cartilaginous?

Main Bronchi and Trachea

3

Which structure of the lung allows for gas exchange?

Alveoli

4

Lobar Anatomy

Right: Upper, Middle, Lower
Left: Upper, Lingula, Lower

5

Where is the bifurcation of the trachea relative to the lungs?

Upper lobes of both lungs

6

What is the function of Epithelial Cell Lining?

Protects the Airway

7

What are the components of the main bronchi?

1. Soft Tissue
2. Cartilaginous Tissue
3. Goblet Cells

8

This functions to trap dust particles in order to remove them from the airway to prevent obstruction.

Mucus

9

Where is mucus located?

Throughout the entire airway path.

10

Where are ciliated epithelial cells located?

Everywhere but the alveoli

11

What do ciliated epithetlial cells do?

Move the mucus secreted by the goblet cells up the airways towards the trachea.

12

Two zones of intrapulmonary airways?

1. Conducting Zone
2. Respiratory Zone

13

What part of the airways are conducting?

1. Trachea
2. Bronchial Tree
3. Bronchioles
4. Terminal bronchioles

14

What part of the airways are respiration?

1. Respiratory Bronchioles
2. Alveolar Sacs

15

What part(s) of the airway(s) contain smooth muscle?

1. Trachea
2. Bronchial Tree
3. Bronchioles
4. Terminal bronchioles
5. Respiratory Bronchioles

16

What part(s) of the airway(s) do(es) not contain smooth muscle?

Alveolar Sacs

17

The parts of the airway with smooth muscle have what type(s) of Nervous System Innervation?

1. Sympathetic
2. Parasympathetic

18

What does the Sympathetic Nervous System do to the smooth muscle in the airways?

Bronchodilations!

Uses Norepinephrine

19

What does the Parasympathetic Nervous System do to the smooth muscle in the airways?

Bronchoconstriction

Uses Acetylcholine

20

When auscultating the chest to identify airways, what zone of the intrapulmonary airways would you be auscultating?

Conduction Zone

21

This layer/zone of the airways has one thin layer of epithelial cells?

Respiratory Zone

22

Using pharmacotherapeutics or normal physiologic responses of bronchoconstriction and bronchodilation will NOT affect which area/structures of the airways?

Alveolar Sacs

23

Airflow in the Large Airways (trachea/bronchi) is defined as?

Turbulent Flow

24

Airflow in Medium Sized Bronchi is defined as?

Transitional Flow

25

Airflow in Small Peripheral Airways (respiratory bronchioles) is defined as?

Laminar Flow

26

What part of the lungs will you NOT hear airways sounds?

Alveoli

27

What are the functional units of the lung?

Blood vessels and airways

28

What is the mean pressure coming out of the heart (aka the systemic circulation pressure)?

100 mm Hg (Systolic 120; Diastolic 80)

29

What is the mean pressure of the main pulmonary artery?

15 mm Hg

30

Pulmonary artery is extremely thin and contains ___________ smooth muscle.

Relative little