Breathing Mechanics - Anatomy

Question 1

The pump handle mechanism occurs in the…

Answer 1

Upper chest

Question 2

Around which anatomic structures does the pump handle mechanism occur?

Answer 2

Sternal angle where the manubrium and body meet

Question 3

What facilitates the pump handle motion?

Answer 3

Positioning of the costovertebral and costotransverse joints

Question 4

The costovertebral and costotransverse joints (for the pump handle motion) are in which plane?

Answer 4

Frontal

Question 5

Because of the orientation of the costovertebral and costotransverse joints, the thoracic cage moves in which direction via the pump handle?

Answer 5

A-P

Question 6

The bucket handle mechanism occurs in the…

Answer 6

Mid- to lower chest

Question 7

What facilitates the bucket handle motion?

Answer 7

The positioning of the costovertebral and costotransverse joints

Question 8

The costovertebral and costotransverse joints (for the bucket handle motion) are oriented in which plane?

Answer 8

Sagittal

Question 9

Because of the orientation of the costovertebral and costotransverse joints, the thoracic cage moves in which direction via the bucket handle motion?

Answer 9

Lateral expansion

Question 10

What structure assists in flaring the ribs out laterally during the bucket handle motion?

Answer 10

Diaphragm

Question 11

Why is movement of the thoracic cage limited?

Answer 11

Overlapping of the spinous processes