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Urinary system
ultrasound
| afferent arteriole | carries blood into the glomerulus of the nephron |
| bowman's capsule | site of filtration in the kidney; contains water, salts, glucose, urea, and amino acids |
| cortex | outer parenchyma of the kidney that contains the renal corpuscle and proximal and distal convoluted tubules of the nephron |
| gerota's fascia | another term for the renal fascia; the kidney is covered by the renal capsule, perirenal fat, gerota's fascia, and pararenal fat |
| hilus | area of kidney where vessels, ureter, and lymphatics enter and exit |
| major calyces | receives urine from the minor calyces to convey the renal pelvis |
| minor calyces | receives urine from the renal pyramids; form the border of the renal sinus |
| nephron | functional unit of the kidney; includes a renal corpuscle and a renal tubule |
| renal corpuscle | part of the nephron that consists of bowman's capsule and the glomerulus |
| renal pelvis | area in the midportion of the kidney that collects urine before entering the ureter. |
| retroperitoneum | space between the peritoneal lining of the abdominal cavity |
| urethra | small, membranous canal that excretes urine from the urinary bladder |
| arcuate arteries | small vessels found at the base of the renal pyramids; appear as echogenic structures |
| creatinine | a product of metabolism; lab test that measures the ability of the kidney to get rid of waste |
| calyx | part of the collecting system adjacent to the pyramid that collects urine and is connected to the major calyx |
| efferent arteriole | small vessel that carries blood from the glomerulus of the nephron and conducts blood to the peritubular capillaries that surround the renal tubule |
| glomerulus | network of capillaries that are part of the filtration process in the kidney |
| loop of henle | portion of a renal tubule lying between the prox and distal convoluted portions; reabsorption of fluid, sodium, and chloride occurs here and in the prox convoluted tubule |
| medulla | inner portion of the renal parenchyma that contains the loop of henle |
| renal pyramid | one of several conical masses of tissue that from the kidney medulla; each consists of the loops of henle and collecting tubules of the nephrons |
| renal sinus | central area of the kidney that includes to calyces, renal pelvis, renal vessels, fat, nerves, and lymphatics |
| specific gravity | lab test that measures how much dissolved material is present in the urine |
| BUN | lab measurement of the amount of nitrogenous waste and creatinine in the blood |