Sentences with phrase «air sacs inflate»

Lungs: Your babies» lungs are developing «branches» of the respiratory «tree» as well as cells that produce surfactant, a substance that helps air sacs inflate easily.

Not exact matches

Surfactant is a naturally occurring chemical needed to inflate the tiny air sacs (called alveoli) in baby's lungs when he or she is ready to breathe.

Both the prairie chicken and the sharp - tailed grouse, for example, inflate colorful air sacs on their necks, stamp their feet, spread their wings and tails, and make booming sounds that can attract coyotes and raptors as well as females.

Every spring, male sage - grouse, which stand two feet high, return to historic strutting grounds known as leks to perform elaborate courtship dances during which they inflate yellow air sacs on their chests to impress female onlookers.

They have air sacs in their neck that can inflate to allow them to float as if they were wearing life preservers.