A&P Urinary System Vocab

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Biology

11th

32 Terms

1

glomerulus

small network of capillaries encased in the upper end of a nephron; where the filtration of blood takes place

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2

Hilum

entrance to renal sinus which blood vessels, nerves, lymphatic vessels, and the ureter pass through

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3

urethra

tube that conveys urine outside the body

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4

urinary bladder

serves as a urine reservoir

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5

detrusor muscle

interlaced muscle which forms the bladder wall

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6

Trigone

triangular internal floor of the bladder which has an opening at each of the 3 corners

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7

Bowman's capsule

cup-shaped structure of the nephron of a kidney which encloses the glomerulus and which filtration takes place

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8

afferent arteriole

the small artery that carries blood toward the capillaries of the glomerulus

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9

efferent arteriole

the small artery that carries blood away from the capillaries of the glomerulus

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10

ureters

The tubes that carry urine from the kidneys to the bladder.

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11

urine

substance secreted from body; made up of 95% water, urea, uric acid, & trace amounts of amino acids & electrolytes

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12

Glomerular Filtration

1st step of urine formation which contains water & various substances dissolving and filtered out of blood between Glomerulus & Bowman’s Capsule

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13

Filtration Pressure

net pressure acting to force substances out of the glomerulus

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14

Ureter

What does the renal pelvis drain into?

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15

Renal cortex

What region of the kidney is mainly composed of blood capillaries?

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16

Bowman’s capsule

What part of the nephron that is most closely related to the glomerulus?

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17

Urethra

What structure carries urine from the bladder to the outside of the body?

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18

Metanephridium

Which structure is not part of the urinary system?

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19

Renal tubules

Reabsorption and concentration of substances by the kidney occur in what structure?

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20

Urinary bladder

In the urinary system what structure stores urine?

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21

Transitional

What type of epithelium lines your bladder?

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22

Micturition

The elimination of urine is _______?

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23

Protein

In the kidneys blood doesn’t lose much _____?

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24

Glomerular filtration, tubular reabsorption, tubular secretion

Name the 3 processes in urine formation?

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25

Peritubular capillary network

Once the blood comes out of the efferent arteriole, what blood vessel does it go into next?

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26

2 gallons

Between both kidneys how much filtrate is produced in an hour?

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27

150 ml

What’s the average amount of urine excreted from the bladder at one time?

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28

Blood

Which of these substances will you find in filtrate that wouldn’t be found in urine?

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29

30 cc

Urine output less than how many cc’s an hour is a sign of kidney failure?

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30

peristalsis

Which of these is the main force that causes urine to move through the ureters to the bladder?

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31

Potassium

Which substance enters the urine via tubular secretion?

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32

Uvula

Which of these is not part of the urinary system?

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