Alveolus, e.g

Usage examples of sac.

I could see the lacy network of lung tissue formed into delicate alveolar sacs for exchange of gas between blood and air.

The rectal opening gradually cicatrized, the sac became obliterated, and the woman left the hospital well.

During the operation he is in full possession of all his faculties, and can assist in any way desired by coughing, or straining, in order, at any time, to complete the protrusion of the rupture and show its entire extent of surface when the sac is laid bare.

Your sacs contained your usual result of a night on Marn: that is, spermatozoa of Alfred, Van Deef and the three guardsmen.

The pollen sacs of the nettles were ripe, and every now and then the vigil would be enlivened by the dehiscence of these, the bursting of the sacs sounding exactly like the crack of a pistol, and the pollen grains as big as buckshot pattered all about them.

It so happened in this case that the peritoneum was extremely dilatable, and the uterus, with the child inside, made its way into the peritoneal sac.

But it was better than being caught below, where the pack of flimmers clustered around the base of the four growths, their air sacs expanding and contracting mightily as they strove to reach the bipedal food that had moved out of their reach.

A selectively permeable membrane, it would pass the right gasses in and out until the composition of the air was- was- Svetz was choking, tearing at the sac.

The gular sac is to be found in both sexes, but somewhat larger in the males.

But one of the most singular properties of the bird is the presence in some of the fully-grown males of a pouch or gular sac, opening under the tongue.

For a time in their youth, in their liquid-dwelling larval form, the branch inds carried their own sacs of data, each a fragment of the total necessary for complete memory.

Holding the back of the shoe with his other hand, he rubbed her foot over his joggly sac, working the point over and into his hidden curves.

The Other did not deign to reply, but Kennit had the satisfaction of seeing its air sacs puff with alarm.

I took a kuruma for the day, and had a very pleasant excursion into a cul de sac in the mountains.

He was gnawing, grinding his teeth on the hangnail, then the nail itself, the base of the nail, the pale arc of quarter moon, the lunula, and there was something awful and atavistic in the scene, Chin unborn, curled in a membranous sac, a scary little geek-headed humanoid, sucking his scalloped hands.