CH # 15: Urinary System Flashcards
The smooth muscle in the wall of the urinary bladder
Detrusor muscle
A hormone released by the kidneys that stimulates RBC production
Erythropoietin
2 names 4 the double-layered cup that surrounds the glomerulus in a nephron
Glomerular capsule
Bowman capsule
The movement of blood plasma across the filtration membrane in the renal corpuscle
Glomerular filtration
Cluster of capillaries in the nephron through blood is filtered
Glomerulus
Complex mortified cells in the afferent arteriole and the ascending limb and distal tubule in the kidney
helps regulate blood pressure by secreting renin
Consists of the macula densa and juxtaglomerular cells
Juxtaglomerular apparatus
3 names 4 an act of expelling urine from the bladder
Micturition
Voiding
Urination
Functional units of the kidney consisting of a renal corpuscle and a renal tubule
Nephrons
The hairpin loop of the renal tubule that extends in2 the renal pyramids
Nephron loop
Portion of the nephron where filtration occurs
Consists of the glomerulus and glomerulus capsule
Renal corpuscle
Outer portion of the kidney that appears granular
Renal cortex
Inner portion of the kidney consisting of renal pyramids
Renal medulla
Large cavity in the central region of the kidney that collects the urine as it is produced
Renal pelvis
Tubular portion of the nephron that carries the filtrate away from the glomerular capsule
Site where tubular reabsorption and secretion occur
Renal tubule
An enzyme secreted by the kidneys that functions in blood pressure regulation by stimulating the formation of angiotensin
Renin
Triangular area in the floor of the urinary bladder formed by the openings 4 the urethra and the 2 ureters
Trigone
The movement of filtrate from the renal tubules back in2 the blood in response 2 the body’s needs during urine formation
Tubular reabsorption
The movement of substances from the blood in2 the renal tubules in response 2 the body’s needs during urine formation
Tubular secreation
Tubular structure that carries urine from the renal pelvis 2 the urinary bladder
Ureter
Passageway that conveys urine from the urinary bladder to the exterior
Urethra
Storage reservoir 4 urine
Located in the pelvic cavity
Urinary bladder
The folds of the mucosa (mucus membrane) of the bladder which allow the bladder 2 expand as it fills w/urine
Rugae
