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Flashcards in urinary system Deck (22)
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1

function of kidneys

produce urine
filter blood
maintain electrolyte, water and acid-base balance
produce hormones

2

position of kidneys

T12-L3
right kidney is located lower due to liver

3

covering of kidneys

kidneys are covered by renal fascia, renal fat (adipose capsule and pararenal fat)

4

renal fascia of kidney

anterior joins the peritoneum, posterior layer joins the posts fascia, superior and lateral are closed, medial and inferior open for vessels and ureter

5

nerves in pararenal fat

subcostal, iliohypogastric and ilioinguinal

6

splenorenal ligament

contains the splenic blood vessels

7

dorsal mesogastrium

= splenorenal ligament and gastrosplenic ligament

8

renal sinus

space that contains minor and major calyces, renal pelvis, renal fat, vessels and nerves

9

renal lobes and liberated kidneys in newborns

8-18 renal pyramids
newborns have lobulated kidney

10

variation in anatomy of the renal pelvis

dendritic pelvis- long, slim and reified calyces
ampullarf type- short calyces

11

blood supply to the kidney

right and left renal arteries from the aorta
left and right renal veins into IVC

12

five segments of the idney

superior, inferior, posterior, anterior inferior, anterior superior

13

branching of renal arteries

renal artery--> segmental arteries --> lobar arteries --> interloper arteries --> arcuate arteries --> interlobular arteries ---> afferent arterioles --> glomerulus ---> efferent arterioles ---> normal capillaries

14

renal corpuscle

glomerulus surrounded by bowman's capsule

partial layer and visceral layer (from by podocytes)
vascular pole where arterioles enter and urinary pole where the proximal tubule drains

15

components of the glomerular filter system

endothelial cells
podocytes
basement membrane

16

supporting cells of the glomerular capillaries

mesangium cells which act like macrophages

17

nephron

functional unit of the kidney that produces urine

18

ureters

transport urine b=via peristaltic movement of smooth muscles
retroperitoneal

abdominal part and pelvic part

19

bladder

retroperitoneal
apex attached to a fibrous cord urachus
funds- attached to ureters
body- forms the superior surface and is the biggest part of the bladder
neck- attaches to the ureter

20

muscle of bladder

detrusor muscle

21

wolffian duct

trigon and associated ureters

22

urinary bladder in children

in early childhood the bladder is an abdominal organ
it begins to descend into pelvis at around six years of age