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.
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).
What is a dome-shaped sheet of skeletal muscle that sits in the base of the chest and abdomen from the chest?
What happens to the air when you exhale and the diaphragm relaxes?
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