Zeitgebers and the Brain

What is the SCN?

• Suprachiasmatic Nucleus

• Superchiasm Nucleus

• Suprachiasmatic Nodule

• Suprachiasm Nodule

What is the hypothalamus?

• Part of the brain that regulates your movement

• Part of the brain that manages your temperature, blood pressure, hunger/thirst and mood

• Part of the brain that holds your emotions

• Part of the brain that controls your memories

What happens when we are exposed to light? (Choose 2 options)

• The SCN delays the release of melatonin

• We wake up quickly

• The internal body clock is regulated

• The light stimulates the neural pathway from the retina to the hypothalamus

When is melatonin at its highest?

• 1am-6am

• 7am-12pm

• 1pm-6pm

• 7pm-12pm

When is it difficult to detect any melatonin? (Choose 2 options)

• 1am-6am

• 7am-12pm

• 1pm-6pm

• 7pm-12am