0
yes
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Is the distal tubule and collecting ducts relatively impermeable due to water in the absence of hormones?
In the absence of hormones, the distal tubule and collecting ducts are relatively impermeable to water. True
What event occurs under maximum ADH stimulation?
The DCT and collecting system become more permeable to water.
Where does osmoregulation take place in the urinary system?
In the urinary system, osmoregulation takes place in the renal tubules and collecting ducts in the kidney. These parts are where selective reabsorption takes place, where water, glucose, salts and other necessary substances are absorbed back into the surrounding blood capillaries, from the renal tubule, which eventually leads to the bladder. The tubule is affected by the hormone ADH (anti-diuretic hormone) from the pituitary gland in the brain, which makes the renal tubule membrane more permeable, so more water can be reabsorbed, or vice versa - Makes the membrane more permeable so that more water is excreted. Osmoregulation is an example of homeostasis.
Which part of the nephron is under the control of the hormones ADH and aldosterone?
ADH increases water reabsorption in the collecting ducts Aldosterone works on the distal convoluted tubule and leads to increased blood pressure.
What property of water makes it bead up on waxy surface?
The form of water you are seeing is water vapor turning to mist and then collecting on leaves.
What substance directly controls the reabsorption of water from the collecting ducts?
The antidiuretic hormone is the substance that directly controls the reabsorption of water from the collecting ducts. It is also known as vasopressin.
Is the distal tubule and collecting ducts relatively impermeable due to water in the absence of hormones?
In the absence of hormones, the distal tubule and collecting ducts are relatively impermeable to water. True
Does diuretics work on the collecting ducts?
Diuretics work in the region of the collecting ducts, but on the ducts themselves. They inhibit ADH from causing water to be reabsorbed in the distal tubules and that produces more urine output.
What is the roleof anti-diuretichormone (ADH)in the body?
ADH makes the collecting duct & distal convoluted tubule of the nephron more permeable to water
What is the role of anti diuretichormone (ADH) in the body?
ADH makes the collecting duct & distal convoluted tubule of the nephron more permeable to water
What is the role of anti-diuretic hormone (ADH) in the body?
ADH makes the collecting duct & distal convoluted tubule of the nephron more permeable to water
What pituitary hormone increases permeability of collecting ducts to water?
Antidiuretic hormone
What does ADH make the kidneys do?
Increases how much water the collecting ducts in the kidney reabsorb.
Which hormone is responsible for facultative water reabsorption in the collecting ducts?
ADH is the hormone responsible for facultative water reabsorption.
What event occurs under maximum ADH stimulation?
The DCT and collecting system become more permeable to water.
Where does osmoregulation take place in the urinary system?
In the urinary system, osmoregulation takes place in the renal tubules and collecting ducts in the kidney. These parts are where selective reabsorption takes place, where water, glucose, salts and other necessary substances are absorbed back into the surrounding blood capillaries, from the renal tubule, which eventually leads to the bladder. The tubule is affected by the hormone ADH (anti-diuretic hormone) from the pituitary gland in the brain, which makes the renal tubule membrane more permeable, so more water can be reabsorbed, or vice versa - Makes the membrane more permeable so that more water is excreted. Osmoregulation is an example of homeostasis.
After passing through the proximal convoluted tubule urine filtrate flows where?
Afferent arteriole -> Glomeruli -> Bowman's capsule (ultrafiltration) -> PCT (Highly permeable to water and solutes, brush border enzymes) -> Loop of henle (descending: water permeable, ascending: solute permeable) -> Early PCT (solute permeable) -> Late PCT and cortical collecting duct (principal cell - permeability depends on hormones ADH and aldoesterone and intercalated cell: secrtes H+)-> Medullary collecting duct (principal cell) -> Ureter -> Bladder -> Urethra
