My Sanford Chart allows you secure online access to your personal health information and your child's health information. It's available anywhere you have internet access. There is no cost to you and registering is quick and simple.

Sign Up for My Sanford Chart
Definition: Bronchoconstriction

Bronchoconstriction

(Broncoconstricción)

The airways are lined with a type of muscle called smooth muscle. In people with asthma, these muscles often tighten in reaction to things like allergies, cold weather, or smoke. When this happens, the airways become narrower, blocking the flow of air and making it harder to breathe. This narrowing of the airways is known as bronchoconstriction.

Kids Health

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

© 1995-2014 The Nemours Foundation/KidsHealth. All rights reserved.