State the reason why: 1. The rise in the body temperature due to increased humidity in the surrounding environment acts as the stimulus that is input to the receptor. 2.

State the reason why: 1. The rise in the body temperature due to increased humidity in the surrounding environment acts as the stimulus that is input to the receptor. 2. The nerve cells of the skin and the brain are involved in perceiving the change or rise in body temperature and thus act as receptors of the stimulus. 3. The hypothalamus acts as the temperature control center of the body. It receives input from the receptors and causes the blood vessels to dilate, thereby activating the effector.