Melatonin is a hormone made by the pineal gland, a small gland in the brain. Melatonin helps control your sleep and wake cycles. Use the Internet to research how the nervous and endocrine systems control the production and release of melatonin and how melatonin controls your sleep and wake cycles. Evaluate each statement below and select the statement that best describes the pathway.

Select one:

Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to wake up.

. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to wake up.

 Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to go to sleep.

 Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to go to sleep.