Urinary System
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Urinary System
OBJECTIVES
ANATOMY
KIDNEY STRUCTURE
COMPOSITION OF
NEPHRONS
IDENTIFICATION OF
NEPHRON
COMPONENTS
EXCRETORY
COMPONENTS
FUNCTION of the
urinary system
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
Urinary System VIBS 443/602
260
458
19713 kidney cortex
19713 kidney cortex
EM 18b
EM 18a
285
Renin granules in Kidney (PAS)
258
Vascular and urinary poles of Kidney, cortex
259
34400
19713 kidney medulla
Kidney medulla (Lee’ s stain) –
thin portion of loop of Henle 254
rat Kidney medulla–
thin portion of loop of Henle 36748
19713 kidney thin loop of Henle in cortex
Thin portion of Cortical nephrons
Cortical nephrons
Juxtamedullay nephrons
Loop increases
temperature over
straight tube
with same
amount of heat
458 kidney
458 kidney
ARTERIAL PORTAL SYSTEM CAPILLARY PORTAL ARTERIOLE CAPILLARY = afferent ARTERIOLE, efferent ARTERIOLE, and PERITUBULAR CAPILLARIES
Kidney - Rich blood supply of
paritubular capillaries and vasa recta
260
rat Kidney medulla–
thin portion of loop of Henle 36748
19713 kidney
458 kidney
458 kidney
Ureter – transitional epithelium
and smooth muscle
262
Urinary bladder, monkey
160
Urethra
Urethra
of penis
Female
and Male
Urethras
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