Urinary system Flashcards

1
Q

Functions of the kidneys

A

Removes metabolic waste from the blood and forms urine

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2
Q

Functions of the ureter

A

Tubes 10 inches long that transport urine away from the kidneys to the urinary bladder

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3
Q

Functions of the urinary bladder

A

A hollow extensible, muscular organ that temporarily holds urine

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4
Q

Describe the urinary bladder in males and females

A

Smaller in female, larger in male

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5
Q

Capacity of the urinary bladder

A

Approximately 470 mL. At 250-300 mL you begin to feel the urge to urinate and when full, the top of the bladder reaches the level of the umbilicus

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6
Q

Length of urethra in males and females

A
  • Male 8-9 inches
  • Female 1.5 inches
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7
Q

Dimensions and shape of the kidneys

A

4.5 in by 2.5 in by 1 inch; bean shaped

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8
Q

Which kidney is larger in humans

A

Left is larger in humans as well as higher

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9
Q

Function of adipose with the kidneys

A

Cushions the kidneys and helps to hold them in place

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10
Q

Position of kidneys

A

Lies against the dorsal abdominal wall, below the waist line, behind the abdominal peritoneum

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11
Q

Three major regions of the kidneys

A

cortex, medulla, and renal pelvis

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12
Q

Cortex

A

Outer layer, granular appearance, renal columns which are part of the cortex and extends into some areas of the medulla

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13
Q

Medulla

A

Second layer, striated in appearance, consist of renal pyramids

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14
Q

Renal pelvis

A

Funnel shaped sue that forms the upper end of the ureter

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15
Q

Calyx

A

Smaller region of the renal pelvis, collects urine

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16
Q

Renal pyramids

A

conical masses that make up medulla

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17
Q

Bowman’s Capsule

A

Expanded end of a nephron, encloses glomerulus

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18
Q

function of Bowman’s Capsule

A

Filters blood to form urine from metabolic waste

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19
Q

Nephron

A

Functional unit

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20
Q

How many nephrons are present in one kidney

A

1 million per kidney

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21
Q

Glomerulus

A

Bundle of capillaries enclosed by Bowman’s capsule

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22
Q

How does diffusion occur in the glomerulus

A

High pressure of blood in glomerulus causes materials to diffuse out of vessels and into Bowman’s capsule

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23
Q

passage of blood

A

blood enters through an afferent vessel and leaves glomerulus through an efferent vessel

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24
Q

name 3 renal tubules

A

proximal convoluted tubule, loop of Henle, and distal convoluted tubule

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25
Where does filtrate go from the Bowman's capsule
The filtrates from Bowman's capsule pass through the tubules and certain components are reabsorbed into capillaries that surround the tubules
26
Define glycosuria
excess sugar in urine
27
Define hematuria
Blood present in urine
28
Define pyuria
puss or WBCs present in urine
29
Define pylitis
infection of renal pelvis
30
Renal calculi
Kidney stones in renal pelvis
31
Cystitis
infection of the urinary bladder
32
Nephritis
Infection of the nephron
33
Edema
Accumulation of fluid in the tissue
34
Uremia
Kidney failure
35
Micturition
urination
36
Hemodialysis
Acts as a filtering system for blood and extends life expectancy
37
Name the vein and artery used in hemodialysis
Renal artery and saphenous vein
38
How long does hemodialysis take
3 to 4 hours
39
Urology
Study of the urinary tract
40
4 organs of the urinary system
Urethra, Urinary bladder, Ureters, Kidneys
41
Renal Hilium
The entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters
42
3 structures that protect the kidney
Adipose, Renal Capsule, and Renal fascia
43
What causes "floating kidney" disease
When perirenal fascia is not abundant, the kidneys are not fixed in place and they drop upon standing
44
Danger of "floating kidney" disease
difficult and painful urination
45
2 parts of the renal corpuscle
Bowman's capsule and glomerulus
46
Renal plexus
Nerve that supplies information to the kidneys
47
Can nephrons regenerate
No
48
Functions of the nephrons
filtration, reabsorption, and secretion
49
Aldosterone
produced by adrenal glands, controlled by NaCl
50
3 examples of a diuretic
alcohol, coffee, chocolate
51
what happens in the absence ADH
tubules absorb more solutes than water, this form diluted urine
52
factors the play a role in transporting urine from ureter to baldder
blood pressure, fluid intake, diseases
53
factors that influence urine volume
dehydration, blood loss, diuretics, infection
54
Description of normal urinalysis
yellow in color, clear, aromatic, 4.8-7.5 pH
55
Abnormal urinalysis
dark red/brown in color, fishy odor, hazy, above 7.5 pH or below 4.8 pH
56
Functions of male urethra
expels both urine and semen
57
polyuria
excessive urination
58
Nocturia
Excessive urination at night
59
dysuria
painful urination
60
urea
presence of proteins
61
uric acid
presence of nucleic acids
62
creatinine
presence of muscle
63
amino acids
presence of protein metabolism
64
how much blood do the kidneys filter
48 gallons in a 24 hour period
65
hydrostatic pressure
pressure a fluid exerts