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In which region of the nephron does secretion occur?
The distal tubule
What is the primary site of tubular reabsorption in the kidneys?
The distal convoluted tubule or the collecting tube.
What are the subdivisons of the renal tubule?
Proximal convoluted tubule, Loop of henle and Distal convoluted tubule.
Which substances are normally secreted into the distal tubule?
The ions that are secreted by the distal convoluted tubule are potassium ions. These are secreted to better control the levels of potassium and sodium.
What are the components of the renal tubule as they are encountered by filtrate?
proximal continuous tubule loop of henle distal continuous tubule
What is the last portion of the renal tubule?
the three main portions of the renal tubule are the proximal convoluted tubule, the loop of henle, and the distal convoluted tubule. the proximal convoluted tubule is the first portion. The proximal (convulated) tubule.
What histological feature distinguishes proximal convoluted tubule from a distal convoluted tubule?
Proximal convoluted tubules have brush borders or microvilli on the inner edge of the tubule. Distal convoluted tubules do not have this structure.
What are the similarities between the distal tubule and the proximal tubule?
Both the distal tubule and proximal tubule are parts of the renal tubule in the nephron. They are involved in reabsorption of essential substances such as water, electrolytes, and glucose from the filtrate. They both play a crucial role in regulating the body's fluid and electrolyte balance.
Where does ADH act on the nephron?
collecting duct (system) and late distal tubule
Is the collecting duct the site that drains the distal convoluted tubule?
No, the collecting duct is the site where the filtrate from multiple nephrons is collected and the final adjustments to urine concentration are made. The distal convoluted tubule drains into the collecting duct.
What is finally reabsorbed in distal convoluted tubule?
Bicarbonate.
Aldosterone acts on what part of the kidney?
Aldosterone acts on the distal convoluted tubule and collecting duct in the kidney to increase sodium reabsorption and potassium secretion.
