GENERAL HISTOLOGY

Detailed explanation-1: -(b) Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body.

Detailed explanation-2: -Sweating: Your sweat glands release sweat, which cools your skin as it evaporates. This helps lower your internal temperature. Vasodilatation: The blood vessels under your skin get wider. This increases blood flow to your skin where it is cooler-away from your warm inner body.

Detailed explanation-3: -In an effort to defend body temperature, our bodies decrease blood flow to the skin to reduce heat loss. We also increase internal heat production through several mechanisms. One example is shivering-or the rapid contraction of muscles-which can quickly produce large quantities of heat within the body.