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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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The main control center for maintaining mammalian body temperature is in the ___ .

  1. a. anterior pituitary
  2. b. renal cortex
  3. c. adrenal gland
  4. d. hypothalamus

Summary Introduction

Introduction: The hypothalamus is a small region in the brain located near the pituitary gland. When outside temperature declines, thermoreceptors in their skin send action potential to the hypothalamus; the brain region is responsible for thermoregulation. A signal from the hypothalamus causes vessels that deliver blood to the skin to contract, so less metabolic heat reaches the body surface.

Explanation

Reasons for the correct statement:

Hypothalamus is the main center for vertebrate temperature control.  It helps in maintaining mammalian body temperature.

Hence, option d. is correct.

Reasons for the incorrect statement:

Option a. is given as “anterior pituitary”. But, hypothalamus regulates body temperature not the anterior pituitary.

So, option a. is incorrect answer.

Option b. is given as “renal cortex”...

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