BIOLOGY
221
Practice Quizzes - Urinary System
J.E. Lathrop-Davis, Assistant Professor
CCBC Catonsville
The main function of the urinary system is _________________________________.
The kidney helps regulate systemic blood pressure by secreting ________________.
The kidney helps regulate red blood cell formation by secreting ________________.
Urine is carried to the urinary bladder by the _________________; the __________ carries it from the bladder to the outside.
The main function of the bladder is to __________________________________.
The outer region of the kidney is called the ___________________. The inner region of the kidney is the ____________________.
The _______________ brings oxygenated blood to the kidney; the ____________ provides venous drainage.
The _____________ is the functional unit of the kidney.
The functional unit
is composed of 4 parts; name them, in the order in which they form or
process the filtrate:
1. ____________________. 3. ____________________.
2. ____________________. 4. ____________________.
Name and describe
the three main processes of urine formation.
a. ________________________________________.
b. ________________________________________.
c. ________________________________________.
Bowman's capsule surrounds a specialized capillary bed called the ________________. Together these structures may be referred to as the __________________.
The ________________________ consists of parts of the afferent and efferent arterioles as well as part of the distal convoluted tubule.
The part from the arterioles is called the ________________; the part from the DCT is called the ___________________.
What keeps the pressure
higher in this capillary bed than in normal capillaries?
___________________________ is the main force responsible for adding fluid to the filtrate at the renal corpuscle.
What are three factors
that affect the glomerular filtration rate?
____________________________
____________________________
____________________________
Increases in systemic
blood pressure would be expected to result in increased filtration.
What two intrinsic (autoregulatory) mechanisms does the kidney use to
adjust flow to maintain a steady filtration rate?
___________________________ and ______________________________
Most tubular reabsorption takes place in the ___________________________.
What are two groups
of substances that are normally reabsorbed?
___________________________ and ___________________________
________________transport uses the energy of the concentration gradient to move substances by diffusion, facilitated diffusion or osmosis.
________________ transport requires ATP and moves substances against their concentration gradients.
______________________ include urea, creatinine and uric acid, which are not normally reabsorbed.
_____________________ is a hormone that targets cells of the CDs to increase Na+ reabsorption.
What controls the secretion of the hormone in #23?
_____________________ is a hormone that affects the CDs and increases their permeability to water.
_____________________ is a hormone that inhibits the reabsorption of sodium, thereby inhibiting water reabsorption.
_____________________ are chemicals that inhibit Na+reabsorption
Reabsorption of water will - increase / decrease (circle one) - blood pressure.
Diuretics will - increase / decrease (circle one) - blood pressure.
__________________________ is the movement of solutes from the blood into the filtrate in the nephron.
The __________________________ is the part of the nephron that acts as a counter-current multiplier to conserve water while allowing wastes to be removed. The blood vessels associated with this structure are called the ____________________.
What type of diabetes results from:
increased plasma glucose due to increased cortisol? ___________________
increased plasma glucose due to decreased insulin? ___________________
decreased ADH secretion? ____________________
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19 August, 2004
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