Describe the different causes and mechanisms of osmotic thirst.

What will be an ideal response?


Osmotic thirst is caused by an increased concentration of solutes in the extracellular fluid, either by increased salt intake, or water loss. Osmotic thirst is detected by neurons in the OVLT that cause increased release of vasopressin (which decreases urine output and raises blood pressure) and increased activity in the LPO to initiate drinking, preferably of pure water.

Psychology

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As with many individuals with senile dementia, Alois has begun to experience a reduced and distorted sense of self. This is an example of a. external continuity

b. internal continuity. c. external discontinuity. d. internal discontinuity.

Psychology

The first two stages in Maslow's hierarchy of needs are:

a. physiological and safety needs b. physiological and belongingness needs c. deprivation and growth needs d. esteem and sense of worth needs

Psychology

Assortative mating is a phenomenon in which humans and animals:

A) mate with more than one partner to mask the paternity of the offspring. B) mate randomly with others to increase genetic variation. C) choose sexual partners based on their social status. D) choose sexual partners who are similar to the individual doing the searching.

Psychology

Walt, Jesse, Mike, and Gus are business partners trying to decide whether they should invest in a risky new direction for their company. Jesse gets the feeling that his partners are leaning toward the risky option

In order to convince his partners that he is a valued member of the company and a "good" group member, Jesse speaks up in strong, public terms in favor of the risky decision, and he leaves the meeting even more convinced than he was before that they should take the risk. Jesse's personal shift in the risky direction illustrates the _____________ explanation for group polarization. a. social comparison b. counterattitudinal c. persuasive arguments d. social facilitation

Psychology