Major calyx

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Major calyx
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
Illu kidney2.jpg
Frontal section through the kidney
Latincalices renales majores
Gray'ssubject #254 1225
PrecursorUreteric bud
MeSHKidney+calices
 
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Major calyx
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
Illu kidney2.jpg
Frontal section through the kidney
Latincalices renales majores
Gray'ssubject #254 1225
PrecursorUreteric bud
MeSHKidney+calices

Two or three minor calyces converge to form a major calyx. A major calyx, in the kidney, surrounds the apex of the renal pyramids. Urine formed in the kidney passes through a renal papilla at the apex into a minor calyx then into a major calyx before passing through the renal pelvis into the ureter.

Peristalsis of the smooth muscle originating in pace-maker cells originating in the walls of the calyces propels urine through the renal pelvis and ureters to the bladder.

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