The kidneys Flashcards
January exam
What are the main structures of the urinary system (there are 7)?
Main vein and artery, kidneys, ureter, nerves, bladder and the urethra.
What are the main structures of the kidneys (there are 6)?
Nephron, renal cortex, renal medulla, renal artery, ureter and the renal capsule.
What are the main structures of the nephron (there are 7)?
the bowman’s capsule, proximal convoluted tubule, distal convoluted tubule, collecting duct, loop of henle, efferent and afferent arteriole.
What happens in the descending limb?
Highly permeable to water but impermeable to solutes.
What happens in the ascending limb?
Nearly impermeable to water but highly permeable to Na+ and Cl-.
What is excretion?
Removing waste
What is osmoregulation?
Controlling the water and salt concentration.
Draw and label a urinary system.
Google the diagram.
What causes water and dissolved minerals to move from the glomerulus into the bowman’s capsule?
high pressure.
Why is it important that glucose is reabsorbed from the PCT into the body?
Will mess the concentration gradient and will appear in urine, releases energy in the form of ATP which is required for processes in the body.
What is the main role of the loop of henle?
maintaining the concentration gradient between water and sodium chloride- water will be reabsorbed.
How does the loop of henle achieve this?
reabsorption- active transport. salt is pumped from the ascending loop into the tissue of the medulla.
