Long-term inhibition of thirst is mostly associated with which of the following?
Cooling of the mouth
Distension of the stomach by ingested water
A drop in blood osmolarity
Moistening of the mouth
Increased salivation
The Correct Answer is C
A. Cooling of the mouth: This causes temporary inhibition of thirst but does not last long-term.
B. Distension of the stomach by ingested water: Stomach distension contributes to short-term thirst relief.
C. A drop in blood osmolarity: This indicates proper hydration and is the main signal for the hypothalamus to turn off the thirst mechanism.
D. Moistening of the mouth: Like cooling, moistening the mouth only provides short-term relief from thirst.
E. Increased salivation: Increased salivation can be a result of hydration but does not directly regulate thirst.
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Related Questions
Correct Answer is {"dropdown-group-1":"B"}
Explanation
A. External urethral orifice: This is the external opening of the urethra, and part of the urethral passageway.
B. Internal urethral sphincter: This is a muscular structure that regulates flow, but it is not a section of the urethral tube itself.
C. Prostatic urethra: This is the part of the male urethra that passes through the prostate gland.
D. Membranous urethra: This portion passes through the urogenital diaphragm in males.
E. Spongy urethra: The longest segment of the male urethra, it runs through the penile (spongy) tissue.
Correct Answer is B
Explanation
A. Intracellular fluid: Intracellular fluid is inside the cells. Edema refers to fluid accumulation outside the cells, so this is incorrect.
B. Interstitial fluid: Edema is caused by the abnormal accumulation of fluid in the interstitial space, which is the space between cells in tissues.
C. Intracellular fluid and interstitial fluid: Edema is confined to the interstitial (extracellular) compartment, not intracellular.
D. Blood plasma: Although fluid may move from the plasma into the interstitial space, edema refers to fluid retention in tissues, not in the blood plasma.
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