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27 Cards in this Set
- Front
- Back
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What does the Urinary system remove from the blood stream?
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by-products of metabolism and toxins
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What does the Urinary system conserve?
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salts, glucose, proteins and water
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What does the urinary system regulate?
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blood pressure, hemodynamics and acid-base balance
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What does the urinary system activate?
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Vitamin D
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What covers the kidneys?
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capsule of dense irregular collagenous ct
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What structures make up the kidneys?
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Cortex and the medulla
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What structures make up the medulla of the kidney?
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renal pyramids
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What seperates the renal pyramids?
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cortical columns
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What smaller structure makes up the renal pyramids?
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Renal Lobule
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What does a renal lobule consist of ?
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A medullary ray with surrounding cortical labyrinth
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What are uriniferous tubules?
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Where urine is made and modified
nephron is the functional unit of kidney |
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What are the parts of the uriniferous tubules?
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renal corpuscle, proximal convoluted tubule, loop of Henle, distal convoluted tubule, connecting tubule, collecting tubule, papillary duct of bellini
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What is renal corpuscle made of?
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Bowman's capsule
glomerulus- capillaries |
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What is the visceral layer of bowman's capsule formed by?
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Podocytes- have filtration diaphragm
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What is the liquid called that passes through the filtration of podocytes?
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glomerular ultrafiltrate
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What does the distal tubule pump from lumen and what do cells make?
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chloride and make Tamm-Horsfall protein
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What makes up the justaglomerular apparatus?
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macula densa
juxtaglomerular cells extraglomerular mesangial cells |
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What does the macula densa cells do?
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send signals for other cells to produce renin
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What are juxtaglomerular cells?
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Modified smooth muscles cells
contain renin |
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Where are extraglomerular mesangial cells found?
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between macula densa and juxtaglomerular cells
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What are the cell types of collecting tubules?
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principal cells, intercalated cells
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When are collecting tubules not impermeable to water?
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Presence of ADH
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What do intraglomerular mesangial cells do?
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provide structural support and also have phagocytic activity
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What do ureters do?
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Conduct urine from renal pelvis to posterior bladder wall
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What is the detrusor muscle?
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Internal sphincter for urethra
contraction forces urine into urethra |
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What is the sympathetic innervation for in bladder?
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innervates vessels
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What is the parasympathetic innervation for in bladder?
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micturition reflex
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