Question

A registered nurse is asking the nursing student to list the mechanisms that would occur in a patient when the posterior hypothalamus senses that the body temperature is lower than the set point. Which mechanisms listed by the student indicate effective learning?

1) Increased shivering and vasoconstriction
2) Decreased shivering and vasodilation
3) Increased sweating and vasodilation
4) Decreased sweating and vasoconstriction

Answer 1

Increased shivering and vasoconstriction are the mechanisms that indicate effective learning when the body temperature is lower than the set point.

Step-by-step explanation:

The hypothalamus in the brain maintains the body's core temperature by initiating various mechanisms when the body temperature is lower than the set point. In this case, increased shivering and vasoconstriction would be the mechanisms that indicate effective learning. Shivering generates heat through muscle contractions, while vasoconstriction reduces blood flow to the skin, conserving heat.