00:01
Hello student, this question is regarding the urinary system and there are many sub questions within it so let us answer it first.
00:06
The main functions of the urinary system is to filter blood and remove all toxic substances and it maintains body fluid balance and it also regulates regulates blood pressure.
00:32
Then next kidneys are located just below the rib cage one on each side.
00:45
This is the labeled diagram where the kidneys, the ureters, the urethra, urinary bladder and spleen stuff is labeled.
00:52
Then this is answer to question 3 whereby we have to label the different parts of the kidney.
00:56
This is the cortex, the renal pyramid, the medulla, the urethra, renal hymen, renal pelvis and the medial calyx.
01:03
Then coming to the next question, the kidneys maintain homeostasis by controlling the amount of water, ions and other substances in the blood.
01:21
It does this with help of hormones such as renin, erythrocytin and the renin angiotensin which regulates blood pressure.
01:38
Then retroperitoneally means outside the peritoneum.
01:49
Organs such as the kidneys are located behind the peritoneum.
01:57
Then coming to the next question, the two blood vessels are renal artery which carries blood from the heart to the kidneys and the renal veins that carries blood away from the kidneys and to the heart.
02:11
And this is the labeled diagram of the bowman's capsule, the glomerulus, distant convoluted tibia, collecting duct and this is where the urine flows, the loop of head and proximal convoluted tibia.
02:21
Then coming to the next filtration is when the blood is filtered by the tiny blood vessels of the glomerulus.
02:36
That is it occurs in a glomerulus.
02:42
Then reabsorption is the process by which water and ions are removed from the filtrate.
03:02
That is they are being reabsorbed and returns to the blood.
03:08
This occurs in the nephron particularly in the tibials of the nephron.
03:16
Whereas secretion is when certain molecules are transported out of the blood and into the urine.
03:35
Secretion occurs in the proximal convoluted tibia...