Melatonin receptors are found in the SCN and the pituitary gland of the brain, as well as in the ovaries, blood vessels, and intestinal tract. There is a high concentration of receptors in the SCN because this is where melatonin mediates the majority of its affects on circadian rhythm. The binding of melatonin to its receptors on the pituitary gland and the ovaries appears to play a role in regulating the release of reproductive hormones in females. For example, the timing, length, and frequency of menstrual cycles in women are influenced by melatonin.
The process by which the nervous system bypasses the brain to increase response time is called a A. feedback mechanism. B. contraction. C. reflex. D. hormonal response. The process by which the nervous system bypasses the brain to increase response time is called a REFLEX. Log in to see link for more information.
In Uncategorized. Motor (efferent) division of PNS carries motor responses from the  central nervous system to muscles, glands, and other organs. Response by the nervous system is accomplished â¦ by motor control.Neurons send impulses to the spinal chord and dendrites carry the message to the cell body the axons then sends them away Motor neurons efferent neurons.otor (efferent) division of PNS carries motor responses from the  central nervous system to muscles, glands, and other organs.