What mechanism is involved when arterioles in the dermis widen to facilitate heat loss?
Understand the Problem
The question is asking about the physiological mechanism that occurs when arterioles in the dermis widen, which is a response to heat regulation in the body. It is testing knowledge of terms related to blood vessel behavior and temperature regulation.
Answer
Vasodilation widens arterioles, increasing blood flow to the skin to lose heat.
The mechanism involved is vasodilation, where arterioles in the dermis widen, allowing increased blood flow to the skin surface to facilitate heat loss.
Answer for screen readers
The mechanism involved is vasodilation, where arterioles in the dermis widen, allowing increased blood flow to the skin surface to facilitate heat loss.
More Information
Vasodilation is a crucial process in thermoregulation where blood vessels widen to increase blood flow to the skin, which helps in dissipating heat to maintain optimal body temperature.
Tips
A common mistake is confusing vasodilation with vasoconstriction; remember, vasodilation is associated with increased blood flow to decrease body temperature.
Sources
- Functions of Blood Regulation - blood.co.uk
- Thermoregulation | Biology for Majors II - Lumen Learning - courses.lumenlearning.com
- Vasodilation: What Causes Blood Vessels to Widen - Cleveland Clinic - my.clevelandclinic.org
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