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14 Lesson 14.1: Anatomy of the Kidney Lesson 14.2: Urine Formation, Storage, and Excretion Lesson 14.3: Diseases and Disorders of Excretory System The.

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Presentation on theme: "14 Lesson 14.1: Anatomy of the Kidney Lesson 14.2: Urine Formation, Storage, and Excretion Lesson 14.3: Diseases and Disorders of Excretory System The."— Presentation transcript:

1 14 Lesson 14.1: Anatomy of the Kidney Lesson 14.2: Urine Formation, Storage, and Excretion Lesson 14.3: Diseases and Disorders of Excretory System The Excretory System

2 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Kidney Location and Size

3 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. renal cortex –outer renal medulla –middle renal pelvis –Inner (drainage area) Anatomy of the Kidney

4 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. renal medulla –pyramid –columns ureter bladder Anatomy of the Kidney

5 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. 20 – 25% of blood flows to kidneys renal artery renal vein sympathetic nerve system –renal nerve fibers Nerve and Blood Supply

6 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. basic working unit of each kidney two main parts –renal corpuscle glomerulus –renal tubule The Nephron

7 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. renal artery afferent arteriole glomerulus efferent arteriole peritubular capillaries or vasa recta renal vein Blood Flow through the Kidneys

8 Lesson 14.2 Urine Formation, Storage, and Excretion Chapter 14: The Urinary System

9 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. filtration –water and solutes from capillary to glomerular capsular space reabsorption –water and solutes move from tubule to capillary secretion –wastes in capillary pushed into tubule Urine Formation

10 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Urine Formation

11 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Reabsorption

12 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. nephron loop (loop of Henle) –descending loop reabsorb water –ascending loop reabsorb sodium The Renal Medulla

13 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. aldosterone –renin reacts & produces angiotensin atrial natriuretic peptide –causes urine volume to increase antidiuretic hormone –causes urine volume to decrease Hormonal Regulation of Urine Volume and Composition

14 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. ureter –kidney to bladder bladder –stores urine urethra –bladder to outside body Urine Storage

15 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Urine Storage

16 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. micturition –urination Urine Excretion

17 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. Urine- pH range 4.5 – 8.0 –95% water, 5% waste glomerular filtration rate –estimate with creatinine in blood Assessing Renal Function

18 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. kidney damage filtration rate under 60 ml/min for at least 3 months develops slowly Chronic Kidney Disease

19 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. hemodialysis –dialyzer peritoneal dialysis –dialysis solution –peritoneum acts as dialysis membrane –Done at home Renal Dialysis

20 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. diabetes mellitus –glucose in urine –type I, type II diabetes insipidus –large amount of dilute urine –ADH not made or not used Diabetes

21 Permission granted to reproduce for educational use only.© Goodheart-Willcox Co., Inc. kidney stones –calcium, magnesium, or uric acid urinary tract infection –Cystitis-bladder inflammation –more common in women than men Diseases and Disorders of the Urinary System


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