Respiratory System: Oxygen, Exercise & Healthy Lungs

The respiratory system works with the cardiovascular system to deliver oxygen. Manage lung health by understanding breathing techniques and exercise responses.

Human respiratory system cross section, head part

Functions of the Nose

Your nose is comprised of bone and cartilage, separated into two symmetrical hollow nostrils. Open sinus spaces sit in your forehead, at the top of your nostrils. As part of the respiratory system, the nose serves several functions.

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