pyramid

pyramid /pyr·a·mid/ (pir´ah-mid) a pointed or cone-shaped structure or part; often used to indicate the pyramid of the medulla oblongata.

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pyramid of cerebellum  p. of vermis.

Lalouette's pyramid  p. of thyroid.

pyramid of light  see under cone.

pyramid of medulla oblongata  either of two rounded masses, one on either side of the median fissure of the medulla oblongata.

Pyramids of medulla oblongata in an anterior (inferior) view of the brain stem.

renal pyramids  the conical masses composing the medullary substance of the kidney.

pyramid of thyroid  an occasional third lobe of the thyroid gland, extending upward from the isthmus.

pyramid of tympanum  the hollow elevation in the inner wall of the middle ear containing the stapedius muscle.

pyramid of vermis  the part of the vermis cerebelli between the tuber vermis and the uvula.

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pyr·a·mid (pr-md)

n.

1. A solid figure with a polygonal base and triangular faces that meet at a common point.

2. A structure or part shaped like a pyramid.

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py·rami·dal (p-rm-dl) adj.

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pyramid

[pir′əmid]

Etymology: Gk, pyramis

a mass of tissue rising to an apex, such as the pyramids of the cerebellum and kidneys.

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Pyramid

Anatomy Any of several structures with a pyramidal shape—e.g., renal pyramids and medullary pyramids on the anterior surface of the brain
Popular health A simplified schematic used to guide a person to optimise her diet and lifestyle choices

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pyramid [pir´ah-mid]

a pointed or cone-shaped structure or part.

pyramid of cerebellum pyramid of vermis.

pyramid of light a triangular reflection seen upon the tympanic membrane.

malpighian p's renal pyramids.

p's of the medulla oblongata either of two rounded masses, one on either side of the median fissure of the medulla oblongata.

renal p's the conical masses constituting the medulla of the kidney, the base toward the cortex and culminating at the summit in the renal papilla.

pyramid of thyroid an occasional third lobe of the thyroid gland, extending upward from the isthmus.

pyramid of tympanum the hollow elevation in the inner wall of the middle ear that contains the stapedius muscle.

pyramid of vermis the part of the vermis cerebelli between the tuber vermis and the uvula.

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pyramid

a pointed or cone-shaped structure or part.

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pyramid breed structure

a standard format for a multiple herd system comprising a breed structure; headed by an open or closed nucleus, a second tier of multiplier herds and a terminal tier of commercial herds which produce the end-product to be marketed. The nucleus, perhaps one herd, produces all of the basic genetic material and supplies breeding stock to the multiplier herds which have the prime role of multiplying the progeny for supply to commercial herds who produce the end product. The entire system is under the control of one organization. Ideally suited to the pig industry.

pyramid of cerebellum

pyramid of vermis.

pyramid of light

a triangular reflection seen upon the tympanic membrane.

malpighian p's

renal pyramids.

p's of the medulla oblongata

either of two rounded masses, one on either side of the median fissure of the medulla oblongata.

renal p's

the conical masses constituting the medulla of certain kidneys, the base toward the cortex and culminating at the summit in the renal papilla.

pyramid of tympanum

the hollow elevation in the inner wall of the middle ear that contains the stapedius muscle.

pyramid of vermis

the part of the vermis cerebelli between the tuber vermis and the uvula.

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pyramid

Popular health A simplified schematic used to guide a person to optimize her diet and lifestyle choices. See Exercise pyramid, Food pyramid, Mediterranean food pyramid.