Which substance is the primary liquid waste product extracted from the bloodstream by the kidneys?, urea, glucose, What are the microscopic filtering units found inside the kidneys called?, Nephrons, ureters, Which hormone is produced by the kidneys to control red blood cell production in the bone marrow?, Adrenaline, Erythropoietin, How do the ureters transport urine from the kidneys to the bladder?, passive gravity, Active pumping, What is the approximate storage capacity of a healthy human bladder?, 2 liters, 2 cups, Which part of the nephron consists of a dense ball of capillaries where blood enters for filtration?, Renal tubule, Glomerulus, According to the urine color spectrum, what does 'dark brownish' urine indicate?, Perfect health, Severe hydration, Which circular muscles act as the 'physical lock' to prevent urine from leaking out of the bladder?, Lateral muscle, sphincter muscle, In the urination release sequence, what is the first step that initiates the process?, muscle relaxation, nerve signal, What is the correct biological path for liquid waste as it exits the body?, bladder to ureter, bladder to urethra

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