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Diaphragm and Phrenic Nerve: In a Nutshell (Nursing)
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Slides Nursing Respiratory System Diaphragm Phrenic Nerve.pdf
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Reference List Medical Surgical Nursing and Pathophysiology Nursing.pdf
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Download Lecture Overview
00:00 Alright, so let's wrap up this video series. The diaphragm is a dome-shaped sheet of skeletal muscle. It sits at the base of your chest and separates the abdomen from the chest. The diaphragm contracts and flattens when you inhale. This creates a vacuum effect that pulls air into your lungs. Now when you exhale, the diaphragm relaxes and the air is pushed out of the lungs. The phrenic nerve is the one that controls the diaphragm and it communicates between the brain and the muscle. Now, irritation or damage to the phrenic nerve can impair a person's ability to breathe. Thank you for watching our video today.
About the Lecture
The lecture Diaphragm and Phrenic Nerve: In a Nutshell (Nursing) by Rhonda Lawes, PhD, RN is from the course Review: Anatomy and Physiology of the Respiratory System (Nursing).
Included Quiz Questions
What is a dome-shaped sheet of skeletal muscle that sits in the base of the chest and abdomen from the chest?
- Diaphragm
- Phrenic nerve
- Liver
- Aorta
What happens to the air when you exhale and the diaphragm relaxes?
- Air is pushed out of the lungs
- A vacuum effect sucks air into the lungs
- There is an increase in positive pressure within the thoracic cavity
- There is an increase in negative pressure within the thoracic cavity
Author of lecture Diaphragm and Phrenic Nerve: In a Nutshell (Nursing)
Rhonda Lawes, PhD, RN
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