NextPrevious

Respiratory System

Structure and Function

What causes a nosebleed?

The inside of the nose is heavily supplied with blood vessels. A blow to the nose, excessive nose blowing, infection, allergies, clotting disorders, or hypertension can cause a nosebleed.

Close

This is a web preview of the "The Handy Anatomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App