Respiratory System Flashcards Preview

620: Clinical Human Anatomy > Respiratory System > Flashcards

Flashcards in Respiratory System Deck (9)
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1
Q

The right lung has _ lobes and the left lung has _ lobes

A

3

2

2
Q

Why does the left lung only have 2 lobes?

A

Because of the cardiac notch

3
Q

Describe the path air takes as it is passed through the lungs

A

Trachea –> Bronchii (right and left) –> Bronchioles –> Alveoli

4
Q

What are alveoli?

A

They are saclike structures surrounded by capillaries in lungs in which oxygen and carbon dioxide are exchanged

5
Q

What are the 2 respiratory membranes that aid in diffusion at the alveoli level?

A

Membrane of the alveolar cells

Membrane of the cells of the capillary wall

6
Q

How many layers of pleura are there surrounding the lungs?

A

2

7
Q

When lung volume increases intrapulmonic pressue _____.

A

decreases

8
Q

What muscle is the most important during inspiration?

A

the diaphragm

9
Q

The _____ intercostal muscles are active during inspiration and the _____ internal muscles are active during expiration

A

external

internal