18 Urinary System (Lecture) 8 Flashcards Preview

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Flashcards in 18 Urinary System (Lecture) 8 Deck (64):
1

Functions of Urinary stystem

Electrolyte balance, Removal of waste, stabilize blood pH, regulate BP, conversion of nutrients

2

Upper urinary tract includes...

kidney only

3

Lower urinary tract includes...

ureters, bladder and urethra

4

Filtration system consists of...

nephrons clean the blood

5

Collection system cosists of ...

every part of kidney and the lower urinary tract except the nephron make up the collection system

6

Where are kidneys located?

in the Retroperitoneum

7

*Where is Paranephric fat located?

surrounds kidney and adreanal gland connects kidneys to posterior abdominal wall.

8

*Where is Paranephric capsule?

Fibrus connective tissue surrounds kidney and adrenal gland.

9

*Where is Perinephric fat located?

Surround kidney only not adrenal

10

What is Renal capsule?

non functional layer just connective tissue

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Renal cortex is comprised of...

Nephrons and Renal columns

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What are nephrons?

Located in the cortex, cleans blood, 1,000,000 in each kidney. Can lose 75% and be fine.

13

Renal columns are?

Where the cortex projects into medulla

14

Renal medulla is where?

functional middle triangles

15

Renal Pyramids contain...

tubes that drain urine from the nephron

16

Renal Pelvis is where?

inner most layer of kidney is part ureter

17

Calyces are....

cups that drain urine from the pyramids.

18

Transitional epithelium is able to

Strech and change shape

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* Renal sinuses are where?

empty spaces bestween the calyces

20

*Blood vessels of the kidney...

Renal artery and vein, Interlobar vessels, arcuate vessels, cortical radiates.

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*Renal artery extends from

aorta to kidney

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*Renal vein extends from

kidney to inferior vena cava

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*Interlobar vessels run...

the boarder between pyramids

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*Arcuate vessels run...

boarder between cortex and medulla

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*Cortical Radiates AKA Interlob(U)lar vessels run...

into the cortex

26

Afferent arteriole does...

brings blood into the glomerelus

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The Glomerulus is?

a capillary bed

28

Efferent arterioles do what?

drains blood out of the glomerulus and delivers blood to peritubular capillary

29

Peritubular capillary does what?

absorbs nutrients, water and salt

30

Juxtaglomerular Complex (Apparatus)

endocrine structure makes Erythropoietin and Renin

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Erythropoietin does what?

stimulates bone marrow to produce mare RBC

32

Renin does what?

Regulates BP and Electrolytes like sodium and potassium

33

Collecting ducts do what?

They drain urine from the nephrons

34

Renal Papillae are...

openings where urine flows out of collecting ducts

35

Calyces minor and major do what?

drain urine from pyramids

36

Renal pelvis does what?

drains urine from the calyces

37

Hilum

notch in kidney

38

Ureters

drain urine from the pelvis to the bladder

39

Bladder sits where?

Retropubic

40

What is the detrusor?

Thick wall of smooth muscle empties bladder

41

What lines the inside of the bladder?

transitional epithelium

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What are the ridges that allow the bladder to expand?

Rugae

43

Trigone of bladder does what?

Funnels direct urine to urethra

44

What is the volume of the bladder when we first notice we have to pee?

200ml

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What is the volume of the bladder when we have to go NOW?

500ml

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What is the volume of the bladder when we lose the ability to hold it?

800ml

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What holds the bladder in place?

Median umbilical ligament

48

Prostatic portion of the urethra....

passes through prostate

49

Membranous portion of urethra...

passes through the muscle of the pelvic floor

50

Cavernous portion of urethra...

passes through the male genitalia

51

Internal urethral sphincter...

relaxes with urinary reflex

52

External urethral sphincter...

involentary control

53

What is the Micturition Reflex?

Urinary reflex loacated in Pons

54

60% of the body's water is...

inside cells it's intracellular

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40% of the body's water is.....

outside cell's it's extracellular

56

Males are ?% water

60

57

Females are ?% water

50

58

Where does fluid intake come from?

60% Ingestion, 30% solid foods, 10% metabolic water (water made by breaking down nutrients)

59

Where does fluid output come from?

60% urine, 4% Feces, 8% Perspiraton, 28% Exhaling.

60

What types of fluid loss are insensible?

perspiration and exhaling

61

Diuretic

any chemical that cause you to lose water (lasix, coffee)

62

ADH is..

Anti diuretic hormone (stims retention of water)

63

Aldosterone does what

helps the body retain salt (water follow salt)

64

Alcohol

Inhibits (ADH) causes you to lose water