22_Urinary

22_Urinary - THE URINARY SYSTEM Chapter 27

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
THE URINARY SYSTEM Chapter 27 https://docs.google.com/document/d/1- MX2fmraxKblimoIydxP82LPTeAGxzy9z9Z- HDfFi_4/edit?hl=en&authkey=CJyyi4gO
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Urinary System Functions Removing waste products from the bloodstream Converts plasma filtrate into urine Storage and excretion of urine Regulation of blood pressure and volume Secretion of erythropoietin (EPO) Regulation of erythrocyte production
Background image of page 2
Kidneys Paired organ Symmetrical, bean- shaped and reddish- brown Located by the posterior abdominal wall, suspended by fat Left kidney is 2 cm superior to right kidney Retroperitoneal Adrenal gland rests on the top of the kidney
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Anatomy of the Kidney 1. Renal capsule 2. Renal cortex 3. Renal medulla 4. Renal columns 1. Renal pyramids 8-15 per kidney 1. Renal papilla Apex of pyramid 2. Minor calyxes 1 per pyramid 3. Major calyxes 2-3 per kidney 4. Renal pelvis Collects urine and transports it to the ureter 5. Ureter
Background image of page 4
Nephron Functional unit of kidney About 1 million in each kidney Consists of: 1. Renal corpuscle 1. Glomerulus and glomerular capsule 2. Renal tubule 1. Proximal convoluted tubule (PCT) 2. Nephron Loop (Loop of Henle) 3. Distal convoluted tubule (DCT) 1. Cortical nephrons (85%) 2. Juxtamedullary nephrons (15%)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Urine Formation Filtration Water and dissolved solutes in plasma passively move out of glomerular capillaries into the capsular space Fluid called filtrate Tubular Reabsorption Substances move by diffusion or active transport from the tubule back to the blood Called tubular fluid Tubular Secretion Active transport of solutes out of blood into the tubules
Background image of page 6
Composed of: Glomerulus (Fenestrated capillaries) Glomerular (Bowman’s) capsule Site of filtration:
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

22_Urinary - THE URINARY SYSTEM Chapter 27

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online