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Kidneys
Gross Anatomy 2 - Kidneys
| Question | Answer |
|---|---|
| Kidneys located | T2-L3; higher on left |
| hilum | L1 |
| anterior to posterior | renal v., renal a., renal pelvis |
| kidney surrounded by | fat & fascia for protection |
| from surface outward | renal capsule, perirenal fat, renal fascia, pararenal fat |
| kidney functions | detoxification, regulation of water volume & blood pressure (angiotensin) |
| internal structure made up of | cortex & medulla & duct system for drainage |
| Medulla formed by | triangular structures: pyramids |
| Cortex extends btwn. pyramids called | renal columns |
| Tip of ea. pyramid - papilla - urine is released | minor calix |
| several minor calyses drain into | major calix |
| 3 major calyses form | renal pelvis |
| Lesser splanchnic n synapse in | aorticorenal ganglis & join reanl plexus on renal a. |
| least splanchnic n. goes directly to | renal a. & synapse with diffuse ganglion cells |
| Additional contribution from | L1 & L2 |
| Kidneys receive no extrinsic parasympathetic innervation but contain | modified epithelial cells which produce acetylcholine |