Category: KIDNEY

HISTOLOGY OF KIDNEY

HISTOLOGY OF KIDNEY

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IDENTIFICATION POINTS

  • OUTER CORTEX AND INNER MEDULLA.
  • CORTEX CONTAINING RENAL CORPUSCLES,PROXIMAL AND DISTAL CONVOLUTED TUBULES.
  • MEDULLA CONTAINING LOOP OF HENLE AND COLLECTING DUCTS.

INTRODUCTION

– KIDNEY IS A PAIR OF EXCRETORY ORGAN LOCATED IN THE POSTERIOR ABDOMINAL WALL BEHIND THE PERITONEUM.

STRUCTURE

CAPSULE:

OUTER MOST PROTECTIVE COVERING MADE UP OF DENSE IRREGULAR CONNECTIVE TISSUE. EXTERNAL TO IT THERE IS A CONDENSATION OF PERIPHERAL FAT AS PERINEPHRIC PAD OF FAT , WHICH IN TURN IS SURROUNDED BY SHEATH CALLED RENAL FASCIA.

CORTEX:

OUTER PART OF KIDNEY FOUND BELOW THE CAPSULE. IT MAINLY CONTAINS GLOMERULUS,BOWMAN’S CAPSULE,DCT AND PCT.

MEDULLA:

INNER PART OF KIDNEY FOUND BELOW THE CORTEX. MEDULLA IS RICH IN LOOP OF HENLE,COLLECTING DUCTS AND PAPILLARY DUCTS(DUCTS OF BELLINI).

CLINICAL:

  • NEPHROTIC SYNDROME IS A DISEASE OF KIDNEY CHARACTERISED BY MASSIVE PROTEINURIA,HYPOALBUMINEMIA AND EDEMA.
  • INFLAMMATION OF GLOMERULUS- GLOMERULONEPHRITIS.
  • INABILITY OF THE KIDNEY TO MAINTAIN THE HOMEOSTASIS OF BLOOD AND BODY FLUIDS IS KNOWN AS RENAL FAILURE.