Flashcards in Chapter Seven- Urinary Deck (75)
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1
Calyx or Calix
Cup-like collecting region of the renal pelvis
2
Catheter
Tube for injecting or removing fluids
3
Cortex
Outer region of an organ; the renal cortex is the outer region of the kidney
4
Creatinine
Nitrogenous waste excreted in urine
5
Electrolyte
Chemical element that carries an electrical charge when dissolved in water; necessary with function of muscles and nerves; kidneys
6
Erythropoietin (EPO)
Hormone secreted by the kidney to stimulate the production of red blood cells by bone marrow
7
Filtration
Process whereby some substances, but not all, pass through a filter
8
Glomerular capsule
Enclosing structure surrounding each glomerulus. (Bowman capsule; collects the material that is filtered from the blood through the walls of the glomerulus)
9
Glomerulus
Tiny ball of capillaries in the kidney
10
Hilum
Depression in an organ where blood vessels and nerves enter and leave
11
Kidney
One of two bean shaped organs on either side of the backbone in the lumbar region; filters nitrogenous wastes from the bloodstream to form urine
12
Meatus
Opening or canal
13
Medulla
Inner region of an organ
14
Nephron
Combination of glomerulus and renal tubule where filtration, reabsorption, and secretion take place in the kidney; functional unit of kidney; 1 million per kidney
15
Nitrogenous waste
Substance containing nitrogen an excreted in urine
16
Potassium
Electrolyte regulated by the kidney so that a proper concentration is maintained within the blood; muscle contraction and nerve impulses
17
Reabsorption
Process where renal tubules return materials necessary to the body back in the bloodstream
18
Renal artery
Blood vessel that carries blood to the kidney
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Renal pelvis
Central collection region in the kidney
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Renal tubule
Microscopic tubes in the kidney where urine is formed after filtration
21
Renal vein
Blood vessel that carries blood away from the kidney and toward the heart
22
Renin
Hormone secreted by the kidney; raises blood pressure by influencing vasoconstriction
23
Sodium
An electrolyte regulated in the blood and urine by the kidneys; needed for proper transmission of nerve impulses, heart activity, and other metabolic functions
24
Trigone
Triangular area in the urinary bladder
25
Urea
Major nitrogenous waste excreted in urine
26
Ureter
One of two tubes leading from the kidneys to the urinary bladder
27
Urethra
Tube leading from the urinary bladder to the outside of the body
28
Uric acid
Nitrogenous waste excreted in urine
29
Urinary bladder
Hollow, muscular sac that holds and stores urine
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