Chapter23 urinarymarieb

Ch 23: Urinary System Objectives Identify and describe the components of the urinary system and their function Describe the (histological) organization of the nephron Identify the blood vessels that supply blood to the nephrons Describe the blood flow through and around the nephron Trace a drop of filtrate as it becomes urine

Functions of Urinary System (Kidneys): ,[object Object],[object Object],[object Object],[object Object],[object Object]

Kidney Location ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Internal Anatomy ,[object Object],[object Object],[object Object],Compare to Fig 23.3

Renal Circulation 20-25% of cardiac output!!

Nephron = functional unit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],(>10 6 /kidney) Fig 23.6

Uriniferous Tubule p 691 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

This diagram has an important inaccuracy!

Two Types of Nephrons ,[object Object],[object Object],Fig 23.9

The Renal Corpuscle ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Filtration: Passage across three barriers

Juxtaglomerular (JG) Apparatus ,[object Object],[object Object],[object Object]

Urine collection: ,[object Object]

Ureters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],This is another inaccuracy!!

Urine Transport, Storage, and Elimination ,[object Object]

Nephrolithiasis Occurs when urine becomes too concentrated and substances crystallize. Symptoms arise when stones begin to move down ureter causing intense pain. Kidney stones may form in the pelvis or calyces of the kidney or in the ureter.

Urinary Bladder ,[object Object],[object Object],[object Object],[object Object]

Urinary Bladder Histology ,[object Object],[object Object],empty bladder full bladder

Urethra, Female ,[object Object],[object Object],[object Object],[object Object]

Urethra, Male ,[object Object],[object Object],[object Object],[object Object]

A drop of filtrate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],Manneken Pis Fountain Brussels, 1619

Chapter23 urinarymarieb

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Chapter23 urinarymarieb

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