What happens after damage to the suprachiasmatic nucleus itself?
A) Light no longer resets the biological clock, but the animal continues generating a 24-hour rhythm.
B) Animals' activity patterns become less consistent and no longer respond to light and dark cycles.
C) Animals lose their biological rhythms of temperature, but keep other circadian rhythms.
D) Animals begin to maintain a constant level of activity throughout the 24-hour day.

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) is responsible for controlling circadian rhythms, including activity patterns, in response to light and dark cycles. Damage to the SCN disrupts these rhythms, making animals' activity patterns less consistent and unresponsive to the natural light-dark cycle.

What Happens After Damage to the Suprachiasmatic Nucleus Itself