roll

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roll

 [rōl]
1. to turn along an axis while moving forward along a surface.
2. the act of rolling.
3. an object that has been rolled into a cylindrical shape.
pelvic roll pelvic rotation.
trochanter roll a wedge (usually a rolled towel) placed from the crest of the ilium to midthigh to prevent external rotation of the hip when the patient is in a recumbent position.
Use of trochanter roll to prevent external rotation of hip.
See illustration.

roll

(rōl),
1. A mass or structure of a rounded or cylindric form created by rotation of a layer of material around its own long axis.
2. The process by which a round entity is moved by a pressure gradient, as when leukocytes move along a blood vessel wall.

roll

Etymology: OFr, rolle
intrinsic joint movements on an axis parallel to the articulating surface. The axis can remain stationary or move in a plane parallel to the joint surface.

roll

(rol) [Fr. roulle, scroll fr. L. rotula, small wheel]
A usually solid, cylindrical structure.

cotton roll

A cylindrical mass of purified and sterilized cotton used as packing or absorbent material in various dental procedures.

ilial roll

A sausage-shaped mass in the left iliac fossa. It is due to a collection of feces in or induration of the walls of the sigmoid colon.

lumbar roll

An air-filled, foam, or gel cushion placed behind the lower back as a support.

Patient care

It is used to maintain the normal lordotic curvature of the lumbar spine and thereby to relieve pressure on commonly injured structures such as discs and facet joints.

scleral roll

See: spur, scleral

trochanter roll

A cushion or pillow used to hold the hip of a postoperative patient in neutral position.
See: Trochanter Roll

Patient discussion about roll

Q. What roll does the sun have in causing cancer

A. Hi again:

This is a book for everybody here:
http://www.amazon.com/Cancer-Handbook-Really-Working-Doctors/dp/1890612189/ref=pd_bbs_sr_6?ie=UTF8&s=books&qid=1229185619&sr=8-6
Read it and learn to understand why you are fooled day by day!

More discussions about roll
References in classic literature ?
His pale waxen face was still freckled and his eyes were rolled back.
With his long, white, nervous fingers he adjusted the delicate needle, and rolled back his left shirt-cuff.
Then I rolled back to the heap and returned with as many shells as I could carry in both hands.
Then gently the great wave broke, and rolled back to the sea, leaving Ripple on the shore, and the child clasped in his mother's arms.
Thus I leave it, and though, except those to whom the secret is know, none would guess that a cave was here, yet it can be rolled back again with a push of the hand.
They seemed changed to one another's eyes, in the red brilliancy that flamed upon their cheeks, while it lent the same fire to the lake, the rocks, and sky, and to the mists which had rolled back before its power.
He panted frightfully, and his head rolled back and forth.
The wild wave of famished beasts rolled back before them, and Buck shook himself free.
Fitted up with three tables for the purposes of play, and crowded with players and lookers on, it was, although the largest place of the kind upon the course, intensely hot, notwithstanding that a portion of the canvas roof was rolled back to admit more air, and there were two doors for a free passage in and out.
The magician flew into a terrible passion, and throwing some more powder on the fire, he said something, and the stone rolled back into its place.
At length we paused; and, at the call of the driver, someone unlatched and rolled back upon their creaking hinges what appeared to be the park gates.
It was not until he had thrown himself down before one of the many wayside crosses, and had prayed from his heart both for the archer and for himself, that the dark cloud rolled back again from his spirit.