Accessory Muscles & More

Lesson Materials

Assignments:

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Accessory_Muscles_Assessment

Please answer any one of the following in the Forum:

  1. Understand the function of the nose in breathing and explain the nasal cycle.
  2. Describe the connections for each nostril.
  3. Differentiate primary respiratory muscles from accessory ones and explain the purpose of the latter.
  4. Name six muscles involved in exhalation and explain why the fill capacity of the upper lungs is less than the lower.
  5. Understand the role of the intercostals in breathing.

Respiratory Anatomy Part 2 - Accessory Muscles & More

Lesson Overview

In this lesson, we go deeper into respiratory anatomy including how different muscles serve different purposes.

Objective

Become familiar with the nasal cycle and lungs, plus the differentiation between primary and accessory respiratory muscles and the muscles used for inspiration and for expiration.

Description

Understand the function of the nose in breathing and explain the nasal cycle. Describe the connections for each nostril. Differentiate primary respiratory muscles from accessory ones and explain the purpose of the latter. Name six muscles involved in exhalation and explain why the fill capacity of the upper lungs is less than the lower. Understand the role of the intercostals in breathing.