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3 June, 04:30

Which of the following hypothalamic control centers would you predict is the LEAST important for survival?

a. suprachiasmatic nucleus

b. autonomic control center

c. temperature control center

d. thirst center

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Answers (1)
  1. 3 June, 05:25
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    a. suprachiasmatic nucleus

    Explanation:

    Suprachiasmatic nucleus is a region localized in the hypothalamus that controls the circadian rhythms, internal processes like the sleep-wake cycles, hormone release, eating habits, and digestion or body temperature. Their lack of regulation can lead to depression, sleep disorders, or eating disorders. Autonomic control center controls and regulates the heart and respiratory rates, sexual arousal, digestion, and other systems in an unconscious way, since it controls many important tasks, its maintenance is crucial for survivance Temperature control center occurs in the central nervous system, in the hypothalamus specifically, the thermoregulation of the body is important because a variation of the temperature can lead to hypothermia or heatstroke, both mortal conditions. Thirst center located on the hypothalamus constantly monitors the ions' concentration in the blood, the pressure or blood volume, when this is low for example, it sends the thirst signal.

    Considering this information I would say that the Suprachiasmatic nucleus is the least important for survival because circadian rhythms can be regulated by an external factor like light, also their regulation is important but not in a survival scenario.

    I hope you find this information useful and interesting! Good luck!
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