Chapter 4. The Suprachiasmatic Nucleus

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Infographic Activity 4.1 The Suprachiasmatic Nucleus

The suprachiasmatic nucleus (SCN) of the hypothalamus is the body’s internal master clock, playing a role in regulating our circadian rhythms. These rhythms roughly follow the 24-hour cycle of daylight and darkness. But one doesn’t have to consciously perceive light for the SCN to function properly: there is a dedicated, nonvisual pathway that carries light information from the eyes to the SCN.

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Quiz

Question 4.1

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Correct.
Incorrect.

Question 4.2

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Correct.
Incorrect.

Question 4.3

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Correct.
Incorrect.

Question 4.4

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Correct.
Incorrect.

Question 4.5

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Correct.
Incorrect.

Question 4.6

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Correct.
Incorrect.

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