The Renal Corpuscle

The renal corpuscle (fig. 23.6) consists of a ball of capillaries called a glomerulus5 (glo-MERR-you-lus), enclosed in a two-layered glomerular (Bowman's6) capsule. The parietal (outer) layer of the capsule is a simple squamous epithelium, while the visceral layer consists of elaborate cells called podocytes7 wrapped around the capillaries. The podocytes are described in detail later. The fluid that filters from the glomerular capillaries, called the glomeru-lar filtrate, collects in the capsular space between the

4pelvis = basin

5glomer = ball + ulus = little

6Sir William Bowman (1816-92), British physician

Saladin: Anatomy & I 23. The Urinary System I Text I I © The McGraw-Hill

Physiology: The Unity of Companies, 2003 Form and Function, Third Edition

Chapter 23 The Urinary System 883

Diabetic Kidney Damage Gross Anatomy

Renal -cortex

Renal -medulla

Renal capsule

Minor calyx-^BE^'

Major calyx Renal column

Renal pyramid (b)

Figure 23.4 Gross Anatomy of the Kidney. (a) Photograph of a frontal section. (b) Major anatomical features.

Renal -cortex

Renal -medulla

Renal

Renal Corpuscle

Renal papilla

Renal pelvis

Ureter

capsule

Minor calyx-^BE^'

Major calyx Renal column

Renal pyramid (b)

Renal papilla

Renal pelvis

Ureter

Figure 23.4 Gross Anatomy of the Kidney. (a) Photograph of a frontal section. (b) Major anatomical features.

parietal and visceral layers and then flows into the renal tubule on one side of the capsule.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

Get My Free Ebook


Responses

  • Christin
    What fluid collects in the renal corpuscle?
    4 days ago

Post a comment