Urinary System - Texas A&M College of Veterinary Medicine ...
Transcript of Urinary System - Texas A&M College of Veterinary Medicine ...
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Urinary System
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OBJECTIVES
ANATOMY
KIDNEY STRUCTURE
COMPOSITION OF
NEPHRONS
IDENTIFICATION OF
NEPHRON
COMPONENTS
EXCRETORY
COMPONENTS
FUNCTION of the
urinary system
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URINARY SYSTEM
- FUNCTION IN
HOMEOSTASIS
RID BODY OF WASTE (UREA, URIC ACID,
CREATININE, SALTS)
PRESERVES CONSTANCY OF
EXTRACELLULAR FLUID IN COMPOSITION,
VOLUME, AND pH
ENDOCRINE FUNCTION
a) SECRETE ERYTHROPOIETIN - RED BLOOD
CELL PRODUCTION
b) PRODUCES RENIN - ALDOSTERONE RELEASE
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Urinary System VIBS 443/602
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260
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458
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19713 kidney cortex
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19713 kidney cortex
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EM 18b
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EM 18a
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285
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Renin granules in Kidney (PAS)
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Vascular and urinary poles of Kidney, cortex
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34400
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19713 kidney medulla
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Kidney medulla (Lee’ s stain) –
thin portion of loop of Henle 254
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rat Kidney medulla–
thin portion of loop of Henle 36748
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19713 kidney thin loop of Henle in cortex
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Thin portion of Cortical nephrons
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Cortical nephrons
Juxtamedullay nephrons
Loop increases
temperature over
straight tube
with same
amount of heat
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458 kidney
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458 kidney
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ARTERIAL PORTAL SYSTEM CAPILLARY PORTAL ARTERIOLE CAPILLARY = afferent ARTERIOLE, efferent ARTERIOLE, and PERITUBULAR CAPILLARIES
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Kidney - Rich blood supply of
paritubular capillaries and vasa recta
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rat Kidney medulla–
thin portion of loop of Henle 36748
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19713 kidney
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458 kidney
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458 kidney
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Ureter – transitional epithelium
and smooth muscle
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Urinary bladder, monkey
160
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Urethra
Urethra
of penis
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Female
and Male
Urethras