Question

Describe what messages are sent by the nervous system when you go outside wearing a sweater on a very hot day.​

Answer 1

Answer and Explanation:

In homeostatic control processes any deviation from the norm sets into motion the appropriate corrective mechanisms which restore the norm. This rectification occurs through negative feedback. When you go outside wearing a sweater on a hot day, the body sends messages to the CNS and the following occurs:

• The superficial blood vessels vasodilate so that more blood flows near the surface. This encourages heat loss.
• Sweating and panting. Sweat secreted by the sweat glands evaporate from the surface of the body as it absorbs latent heat.
• The metabolic rate falls so that the body generates less heat. You also become less active
• Behavioural response by seeking cooler areas, cold drinks or removal of the sweater.