Anatomy Flashcards
What does the kidney metabolise?
Vitamin D
Catabolism of insulin, PTH, calcitonin
Function of the kidneys?
Control volume Control osmolarity Help to control pH Excretion of waste products Synthesise some hormones Metabolism of some things
How much water in a person?
40L
Where is water stored and what quantities?
ICF - 25L
ECF - 15L
What happens if something has a high osmotic potential?
Water moves towards it
Water moves from low to high osmolarity
What is osmolality and osmolarity?
Osmolality - solute per kilo of solvent
Osmolarity - no. of osmoles of solute per litre
How many nephrons in each kidney?
1.5 million
What levels are the kidneys at? Which is higher?
T11/T12
Left is higher than the right
Where does the bladder sit in an adult and child
Adult - behind the pubic bone
Child - above the pubic bone
Course of a ureter?
Arise from renal pelvis on medial aspect of each kidney
Descend on front of psoas major passing laterally to medially
Cross pelvic brim near bifurcation of iliac arteries
Pass under uterine artery/ductus deferens
Down the pelvic sidewall
Insert on posterior surface of the bladder
List some bony landmarks for course of the ureters
Arise at L2
Descend in front of tips of lumbar transverse processes
Cross into pelvic brim roughly in front of sacroiliac joint
Enter bladder at level of ischial spines
Three sections of the ureters where kidneys are likely to cause an obstruction?
Junction of renal pelvis and ureter
Pelvic brim
Where ureters pass into wall of bladder
What surrounds the kidneys?
Perinephric fat
Renal fascia which surrounds the adrenal glands also
Paranephric fat
What part of the nephron is contained in the renal cortex?
Bowman’s capsule and renal tubules except for part of the loop of Henle
What is contained in the renal medulla?
The loop of Henle and collecting duct
What happens at the renal papilla?
Where the urine empties from the renal pyramid into the minor calyxes