The Lungs Flashcards Preview

SCT1 Physiology Module 7 > The Lungs > Flashcards

Flashcards in The Lungs Deck (12):
1

The lungs are 2 organs separated by the _________ and other structures in the mediastinum.

HEART

2

The mediastinum is a region in the thoracic cavity between the ________.

LUNGS

3

The mediastinum extends from the __________ to the vertebrae, and from the 1st rib to the clavicle.

STERNUM

4

The top of the lungs is considered what?

THE APEX

5

The bottom of the lungs is considered what?

THE BASE

6

Within the lungs, each bronchus subdivides into which 4 smaller and smaller units?

SECONDARY BRONCHI (2, 3)
+
TERTIARY BRONCHI
+
BRONCHIOLES
+
TERMINAL BRONCHIOLES

7

There are ______ secondary bronchi on the right, and _____ on the left.

3 RIGHT
2 LEFT

8

Smooth muscle of the lungs _____________, cartilage decreases.

INCREASES

9

The terminal bronchioles divide further and further until you get what?

ALVEOLI

10

Alveoli is where most _______ exchange happens.

GAS

11

What is the name for the structure of the lung which is a cup-shaped outpoaching lined with simple squamous epithelium supported by a thin elastic basement membrane?

ALVEOLI

12

2 or more alveoli which share a common opening is known as what?

ALVEOLAR SAC