Renal pyramids

Renal pyramids

Kidney anatomy, with pyramids labeled at right

Details
System Urinary system
Identifiers
Latin Pyramides renales
Dorlands
/Elsevier		 p_03/13479070
TA A08.1.01.029
FMA 74268

Anatomical terminology

Renal pyramids (or malpighian pyramids or Malpighi's pyramids named after Marcello Malpighi, a seventeenth-century anatomist) are cone-shaped tissues of the kidney. In humans, the renal medulla is made up of 10 to 18 of these conical subdivisions.[1] The broad base of each pyramid faces the renal cortex, and its apex, or papilla, points internally towards the pelvis. The pyramids appear striped because they are formed by straight parallel segments of nephrons and collecting ducts. The base of each pyramid originates at the corticomedullary border and the apex terminates in a papilla, which lies within a minor calyx, made of parallel bundles of urine collecting tubules.

Additional images

See also

References

  1. ↑ Young, Barbara; O'Dowd, Geraldine; Woodford, Phillip (2014). Wheater's Functional Histology (6 ed.). Philadelphia, PA: Elsevier. p. 293. ISBN 978-0-7020-4747-3.


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