spur

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spur

 [sper]
1. a spiked object or goad.
2. a projecting body, as from a bone; called also calcar.
Calcaneal (heel) spur. From Frazier et al., 2000.

cal·car

(kal'kar), [TA]
1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle.
See also: vascular spur.
2. A dull spine or projection from a bone.
Synonym(s): spur [TA]
[L. spur, cock's spur]

spur

(spur)
1. calcar; a spiked projecting body, as from a bone.
2. in dentistry, a piece of metal projecting from a plate, band, or other appliance.

calcaneal spur  a bone excrescence on the lower surface of the calcaneus which frequently causes pain on walking.
scleral spur  the posterior lip of the venous sinus of the sclera to which most of the fibers of the trabecular reticulum of the iridocorneal angle and the meridional fibers of the ciliary muscle are attached.

spur

(spûr)
n.
A spine or projection from a bone.

spur

Etymology: AS, spura
a projection of bone from a body structure or of metal from an appliance. See also exostosis.

spur

Orthopedics A bony projection often arising in a calcified tendon. See Calcaneal spur.

cal·car

(kal'kahr) [TA]
1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle.
2. A spine or projection from a bone.
Synonym(s): spur.
[L. spur, rooster's spur]

spur

  1. a short shoot on which flowers are borne.
  2. an extension of a leafbase below its point of attachment to the petiole.
  3. a hollow, conical projection from the base of a petal, as in the larkspur.

Spur

Any projection from a bone.
Mentioned in: Rotator Cuff Injury

spur

1. an abnormal projecting body, as from a bone.
2. a piece of riding gear worn on the heel of a horserider's boot and used to urge on a horse to a faster speed by digging the spur into the flank.
3. a sharp, horn-covered, bony projection from the shank of male birds of some species. Used as a weapon. Called also metatarsal spur.
4. tracheal spur, the ridge of tracheal cartilage that separates the beginning of the right bronchus from the beginnings of the left one.

spur veins
subcutaneous veins visible over the ventral part of the chest of a horse (superficial thoracic vein). Subject to laceration by indiscriminate use of sharp spurs by the vigorous rider.
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