A&P CHAPTER 22: URINARY SYSTEM Flashcards

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1
Q

3 MAJOR FUNCTIONS OF URINARY SYSTEM

A

EXRETION (REMOVAL OF WASTE FROM BODY FLUID)
ELIMINATION (DISCHARGE OF WASTES FROM BODY)
HOMEOSTATIC REGULATION (OF VOLUME AND SOLUTE CONCENTRATION OF BLOOD PLASMA)

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2
Q

HOW DO KIDNEYS HELP MAINTAIN HOMEOSTASIS

A

REGULATION OF PH/ACID-BALANCE AND VOLUME OF EXTRACELLULAR FLUID

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3
Q

WHAT HORMONE DOES KIDNEY SECRETE

A

ERYTHROPOIETIN WHICH HELPS CONTROL RBC PRODUCTION

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4
Q

WHAT VITAMIN DOES THE KIDNEY ACTIVATE

A

VITAMIN D

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5
Q

WHAT ENZYME DOES THE KIDNEY SECRETE

A

RENIN WHICH HELPS MAINTAIN BLOOD VOLUME AND PRESSURE

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6
Q

WHAT PROCESS DOES THE KIDNEY CARRY OUT DURING FASTING PERIODS

A

GLUCONEOGENESIS

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7
Q

WHAT SUPPLIES THE KIDNEYS WITH BLOOD

A

RENAL ARTERIES

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8
Q

WHAT DO NEPHRONS DO

A

FUNCTIONAL UNITS OF THE KIDNEY THAT FILTER BLOOD (GLOMULUS) AND RETURN NEEDED SUBSTANCES BACK TO BODY (TUBULE)

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9
Q

WHAT DO KIDNEY COLLECTING DUCTS DO

A

RESPONSIBLE FOR MAINTAINING WATER AND SODIUM ION BALANCE OF THE BODY WITH TYPE A AND B CELLS, BALANCING ACID/BASES IN BLOOD

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10
Q

GLOMERULAR FILTRATION

A

INITIATES URINE FORMATION IN RENAL CORPUSCLE
USES HYDROSTATIC PRESSURE TO FORCE FLUIDS AND SOLUTES THROUGH MEMBRANES

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11
Q

GLOMERULAR MESANGIAL CELLS

A

SPECIALIZED PERICTYES THAT ENGULF MACROMOLECULES CAUGHT IN FILTRATION MEMBRANE

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12
Q

GLOMERULAR FILTRATION RATE WILL DECREASE IF WHAT

A

INADEQUATE BLOOD PRESSURE
SYMPATHETIC STIMULATION
DECREASED NECESSARY IONS

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13
Q

TUBULAR REABSORPTION

A

MOVES SELECT SUBSTANCES BACK INTO BLOOD

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14
Q

MECHANISM FOR SODIUM TUBULAR REABSORPTION

A

PRIMARY ACTIVE TRANSPORT

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15
Q

MECHANISM FOR NUTRIENTS TUBULAR REABSORPTION

A

SECONDARY ACTIVE TRANSPORT

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16
Q

MECHANISM FOR WATER TUBULAR REABSORPTION

A

PASSIVE TUBULAR WATER REABSORPTION

17
Q

MECHANISM FOR IONS TUBULAR REABSORPTION

A

PASSIVE TUBULAR SOLUTE REABSORPTION

18
Q

HOW ANTIDIURETIC HORMONE AFFECTS FILTRATE

A

INHIBITS URINE OUTPUT

19
Q

HOW ALDOSTERONE AFFECTS FILTRATE

A

CONTROLS REABSORPTION OF SODIUM IONS

20
Q

HOW ATRIAL NATRIURETIC PEPTIDE AFFECTS FILTRATE

A

REDUCED BLOOD SODIUM IONS

21
Q

HOW PARATHYROID HORMONE AFFECTS FILTRATE

A

INCREASES REABSORPTION OF CALCIUM IONS

22
Q

WHAT DOES TUBULAR SECRETION DO

A

MOVES SELECTED SUBSTANCES FROM BLOOD INTO PERITUBULAR CAPILLARY FOR SECRETION

23
Q

VASA RECTA

A

RETURNS SOLUTES AND WATER REABSORBED IN THE RENAL MEDULLA TO THE BLOODSTREAM WITHOUT CHANGING CONCENTRATION GRADIENT

24
Q

UREA IS A RESULT OF ___

A

AMINO ACID CATABOLISM

25
Q

URIC ACID IS A RESULT OF ___

A

METABOLISM OF ORGANIC BASES IN NUCELIC ACIDS

26
Q

WHAT MAKES URINE YELLOW

A

UROCHROME PIGMENT FROM DESTRUCTION OF HEMOGLOVIN

27
Q

DIFFERENCE BETWEEN RENAL CORPUSCLE AND TUBULE

A

CORPUSCLE: FILTERS
TUBULE: REABSORBS/SECRETES

28
Q

RENAL CLEARANCE

A

VOLUME OF PLASMA THE KIDNEYS COMPLETELY REMOVE OVER A MINUTE TIMEFRAME

29
Q

WHAT IS MICTURITION

A

URINATION