Healthy unconstricted arteries.    From Wordnet, Princeton University. 

She took what felt like her first unconstricted breath in many hours.    From Wordnik.com.  [The Beekeeper's Apprentice]

Sighing deeply, she took what felt like her first unconstricted breath since Diana had called Aunt Sara's name.    From Wordnik.com.  [Blood Lines]

Once the flow is unconstricted, my head starts to pound.    From Wordnik.com.  [VideoHelp.com Forum] Reference

A, Vegetative filaments with their walls unconstricted. ... ».    From Wordnik.com.  [Transactions of the American Philosophical Society] Reference

Stollenwerk's octopus carpaccio shows the chef at his unconstricted best.    From Wordnik.com.  [The Clog] Reference

You’d want something you can feel comfortable/unconstricted in.    From Wordnik.com.  [Regretsy – Ties that Blind] Reference

Finally, Emma emerged into the sunlight and Jason’s heart unconstricted.    From Wordnik.com.  [Red Hot Reunion] Reference

A certain feminine fantasy of bodily liberation ... the pictorial possibility of unconstricted movement, of simply breathing deeply, of not having their breasts pushed up under their chins and having their ribs and lungs encased in whalebone.    From Wordnik.com.  [Women Artists Win!] Reference