Advanced Biology module 15 | Baamboozle - Baamboozle

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Urinary system

Study Slideshow

What is the normal pH range for blood?

7.35-7.45

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What are the three processes for changing the pH of blood?

least effective but fast is the buffer system in the blood, ventilation depth and rate, most effective but slow is H+ secretion in the kidneys

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A sample of blood has a pH of 7.2, is it acidic, alkaline or normal?

acidic <7.35

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What happens to the pH of blood in high altitudes and why?

It becomes alkaline. You breathe deeper to get more O2, and that causes you to get rid of more CO2

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What might cause urine to become more alkaline, and why?

vomiting, because you are losing acid, causing the kidney to secrete a lot of H+ ions back into the blood

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What is tubular maximum?

The maximum rate of reabsorption by active transport through the nephron tubules. (glucose and sodium)

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What is the Glomerular Filtration rate(GFR)?

The rate at which filtrate is produced in glomerular filtration. normal is 125ml/min

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What is a sphincter?

a ring of muscles surrounding and serving to guard or close an opening of a tube.

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What is a buffer system?

A mixture of acids and bases that resist changes in the pH

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What is the vasa recta?

A blood vessel in the medulla of the kidney, near the loop of henle

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What are fenestrae?

large pores in the glomerular capillaries

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What is the renal blood flow rate?

The rate at which blood flows through the kidneys (1 liter/min)

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What does retroperitoneal mean?

behind the parietal peritoneum.

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What is filtrate in the urinary systerm>

Blood plasma minus the large proteins. The fluid that is filtered by the nephrons

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What is erythropoiesis?

The production of red blood cells (erythro-red, poi - new)

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Starting with the kidneys, name the 4 parts of the urinary tract.

kidneys, ureters, bladder, urethra

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