Urinary System

hilum

medial surface regulated by the kidneys.

calyces

beginning of the "plumbing system" of the urniary system, urine leaving the renal papilla is collected in the cuplike structures.

nephron

functional unit of the kidney

glomerules and Bowman' capsule

is a component of the renal corpuscle.

juxtaglomerular apparatus

secretes renin when blood pressure in the afferent arteriole drops.

filtration

substances pass from the glomerulus and into the Bowman's capsule

afferent arteriole

juxtaglomerular cells reside here

renal artery

blood is brought to the kidneys by the

secretion

the movement of molecules out of the peritubular blood and into the tubule for excretion.

proximal convoluted tubule

under normal conditions, most water, electrolytes, and nutrients are reasborbed in the

henle loop

is considered a countercurrent structure.

ADH and aldosterone

water loss from the blood is reduced by these

dysuria

painful urination

kidney failure

homeostatic failure, and if not relieved, inevitable death.

hydronephrosis

urine backs up into the kidneys causing swelling of the renal pelvis and calyces.

renal calculi

kidney stones

uremia

final stage of chronic renal failure

neurogenic bladder

involuntary retention of urine with subsequent distention of the bladder.

cystitis

inflammation of the bladder

pyelonephritis

inflammation of the renal pelvis and connective tissues of the kidney

acute renal failure

an abrupt reduction in kidney function characterized by oliguria and a sharp rise in nitrogenous compounds in the blood.

chronic renal failure

progressive condition resulting fro gradual loss of nephrons.

renal colic

intense kidney pain caused by destruction of the ureters by large kidney stones.

acute glomerulonephritis

most common form of kidney disease caused by a delayed immune response to streptococcal infection

proteinuria

albumin in the urine.

urethritis

inflammation of the urethra that comonly results from bacterial infection.

dialysis

a process used by the artificial kidney to remove waste materials from the blood.

reabsorption

urine formation allows the blood to retain most body nutrients

external urethral sphincter

voluntary control of micturition is achieved by the action of.

ureter

the structure that carries urine from the kidney to the bladder.

glomeruli

capillary loops contained within Bowman's capsule

pyramids

the triangular divisions of the medulla of the kidney are

bladder

the trigone is located in the

hematuria

blood in the urine

anuria

absence of urine

nephritis

inflammation of the kidney

micturition

urination

oliguria

scanty amount of urine

polyuria

large amount of urine

incontinence

involuntary voiding

proteinuria

large amount of protein in urine

rugae

folds that line the bladder

urethra

passes through prostate gland

BUN

test for renal dysfunction