Urinary System Part 2 - The Kidney Flashcards
what is the outer layer/superficial layer of the internal kidney called?
the renal cortex
what is the kidney covered in?
a fibrous capsule
when we put all the renal pyramids together, what do we get?
the renal medulla
there are pieces in between each renal pyramid that are filled with the renal cortex. what are they called?
renal columns
what is the renal papilla?
the point at which each renal pyramid comes towards the renal hilum
where is the kidney doing all of its filtering of the blood?
the renal cortex and medulla
how is blood brought into the kidney?
arterial blood is brought into the kidney on every heart beat from the abdominal aorta through the renal artery to be filtered by the kidney
when will the kidney be up to date on what the body needs?
constantly
- it constantly checks up on the blood to make sure it is meeting the needs of the body
the blood that comes into the kidney will go through?
branches and branches of arteries up into the renal cortex and the renal medulla and the kidney will sift through what is in the blood
what will the kidney do if the blood has too much calcium?
it will hold onto it and not give it back to the blood
what will the kidney do if the blood needs more or less water?
it will make sure the blood has that
once the blood has been filtered by the kidney, where will it go?
it is going to leave through the renal vein and go to the inferior vena cava to rejoin the blood stream
where will all the waste from the blood in the kidney leave?
through a nephron, through the yellow tubes, and head towards the ureter, to the bladder, to leave as urine
where is the blood filtration in the kidney occuring?
nephrons
what are the functional unit of the kidney?
nephrons
each kidney has about how many nephrons?
2.5 million
why are people able to donate a kidney?
because even if you have one left, you still have 2.5 million nephrons (a lot)
after the nephrons of the kidney filter the blood and out everything good back into the blood, where does the leftover waste go?
everything leftover will come down through the renal pyramid, towards the renal papilla of the pyramid and will enter through one of the minor calyx openings which then a bunch of the minor calyx will join to form a major calyx
the major calyx’s join together to form?
the renal pelvis
where does the urine go after the renal pelvis?
will leave through the ureter and head towards the urinary bladder