Urinary System Flashcards
function is to filter blood and create urine as a waste by-product.
Urinary System
Components of the Urinary System
consists of two kidneys, two ureters, one urinary bladder, and one urethra.
Kidneys produces two hormones
calcitriol and erythropoietin
regulate blood volume and composition; help regulate blood pressure, pH, and glucose levels; produce two hormones (calcitriol and erythropoietin), and excrete wastes in urine.
Kidney
transport urine from the kidneys to the urinary bladder.
Ureters
stores urine and expels it into the urethra.
Urinary Bladder
discharges urine from the body.
Urethra
blood plasma is filtered
renal corpuscle
the functional unit of the kidney and the structure that actually produces urine in the process of removing waste and excess substances from the blood.
Nephron
capillary network
glomerulus
PATH OF BLOOD FILTRATION:
Renal Artery -
Segmental arteries - Interlobar arteries -
Arcuate arteries -
Cortical radiate arteries - Afferent arterioles- Glomerular capillaries- Efferent Arterioles- Peritubular capillaries - Peritubular venules-
Cortical radiate veins- Arcuate veins-
Interlobar Veins-
Renal Veins
bowman’s capsule
GLOMERULAR CAPSULE
filtered fluid
renal tubule
denotes the part of the tubule
attached to the glomerular
capsule
PROXIMAL CONVOLUTED
TUBULE (PCT)
organ used for male urination
Penis
organ used for female urination
Vagina
connects the promixal and distal
convoluted tubules
nephron loop
tubule is tightly coiled
rather than straight
convulated
Filter blood and create urine as a waste by product
Urinary System
Two main regions of the Kidney
Renal Cortex and Renal Medulla
Superficial, light red region of the Kidney
Renal Cortex
Deep, dark red region of the Kidney
Renal Medulla
The process by which urine empties from the bladder
Micturition
In females, the urethra is ______ and only ______ cm long.
shorter, 3-4 cm