Renal pyramids

Renal pyramids
Kidney PioM.png
1. Renal pyramid
2. Efferent artery
3. Renal artery
4. Renal vein
5. Renal hilum
6. Renal pelvis
7. Ureter
8. Minor calyx
9. Renal capsule
10. Inferior renal capsule
11. Superior renal capsule
12. Afferent vein
13. Nephron
14. Minor calyx
15. Major calyx
16. Renal papilla
17. Renal column
Gray1127.png
Vertical section of kidney.
Latin pyramides renales
Gray's subject #253 1221

Renal pyramids (or malpighian pyramids) are cone-shaped tissues of the kidney. The renal medulla is made up of 7 to 18 of these conical subdivisions (usually 7 in humans). The broad base of each pyramid faces the renal cortex, and its apex, or papilla, points internally. The pyramids appear striped because they are formed by straight parallel segments of nephrons.

Additional images

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.

See also

External links



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Look at other dictionaries:

  • renal pyramids — pyramides renales; see under pyramis …   Medical dictionary

  • Renal column — Kidney 1 …   Wikipedia

  • renal column — n any of the masses of cortical tissue extending between the sides of the renal pyramids of the kidney as far as the renal pelvis called also Bertin s column, column of Bertin …   Medical dictionary

  • renal system — ▪ anatomy Introduction  in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine.       In many respects the human excretory, or… …   Universalium

  • Renal cortex — For other uses, see Cortex (disambiguation). Renal cortex 1: Parenchyma 2: Cortex 3: Medulla 4: Perirenal fat 5: Capsule 6: Ureter …   Wikipedia

  • Renal papilla — Infobox Anatomy Name = PAGENAME Latin = GraySubject = GrayPage = Caption = 1. Renal triangle 2. Efferent artery 3. Renal artery 4. Renal vein 5. Renal hilum 6. Renal pelvis 7. Ureter 8. Minor calyx 9. Renal capsule10. Inferior renal capsule 11.… …   Wikipedia

  • Renal medulla — Infobox Anatomy Name = PAGENAME Latin = GraySubject = 253 GrayPage = 1221 Caption = 1: Parenchyma 2: Cortex 3: Medulla 4: Perirenal fat 5: Capsule 6: Ureter 7: Pelvis of kidney 8: Renal artery and Renal vein 9: Hilus 10: Calyx Caption2 = Vertical …   Wikipedia

  • renal calices — the recesses of the renal pelvis that enclose the renal pyramids; see calices renales majores and calices renales minores. Called also calyces renales …   Medical dictionary

  • renal medulla — medulla renalis [TA] medulla renis the inner part of the substance of the kidney, composed chiefly of collecting tubule elements, loops of Henle, and vasa recta, organized grossly into renal pyramids …   Medical dictionary

  • renal pyramid — ▪ anatomy       any of the triangular sections of tissue that constitute the medulla, or inner substance, of the kidney. The pyramids consist mainly of tubules that transport urine from the cortical, or outer, part of the kidney, where urine is… …   Universalium


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