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AP Intermediate 1st Year Neural Control and Chemical Coordination — practice questions — page 2

Explore 50 free Neural Control and Chemical Coordination questions in AP Intermediate 1st Year Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Neural Control and Chemical Coordination questions and exercises with answers

Showing questions 31–50 of 50.

Hypothalamic somatostatin inhibits the release of which pituitary hormone?Read the answer and worked solution →How do hypothalamic hormones reach the anterior pituitary?Read the answer and worked solution →The adenohypophysis consists of which two portions?Read the answer and worked solution →The pars intermedia of the pituitary secretes which single hormone?Read the answer and worked solution →Oxytocin and vasopressin are actually synthesised in which structure?Read the answer and worked solution →What is the main role of prolactin?Read the answer and worked solution →ACTH stimulates the synthesis and secretion of which hormones?Read the answer and worked solution →Which hormone induces ovulation of fully mature Graafian follicles?Read the answer and worked solution →Which pituitary hormone stimulates growth of ovarian follicles in females?Read the answer and worked solution →Vigorous uterine contraction during childbirth is stimulated by which hormone?Read the answer and worked solution →Vasopressin is also known by which name?Read the answer and worked solution →Impaired synthesis or release of ADH leads to which condition?Read the answer and worked solution →Melatonin plays a key role in regulating which body rhythm?Read the answer and worked solution →Thyroxine is chemically known as which compound?Read the answer and worked solution →Enlargement of the thyroid due to dietary iodine deficiency is called what?Read the answer and worked solution →Exophthalmic goitre is also called which disease?Read the answer and worked solution →Which features characterise exophthalmic goitre?Read the answer and worked solution →Which protein hormone of the thyroid gland regulates blood calcium?Read the answer and worked solution →How does parathyroid hormone act on bones?Read the answer and worked solution →Besides bone, PTH increases Ca2+ reabsorption at which site?Read the answer and worked solution →

Worked practice questions

Hypothalamic somatostatin inhibits the release of which pituitary hormone?

  1. Growth hormone
  2. Oxytocin
  3. Vasopressin
  4. Prolactin
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Correct answer: A. Growth hormone

Somatostatin is an inhibiting hormone that blocks growth hormone release from the pituitary.

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How do hypothalamic hormones reach the anterior pituitary?

  1. A portal circulatory system
  2. The cerebrospinal fluid
  3. The lymphatic vessels
  4. The general venous return
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Correct answer: A. A portal circulatory system

Releasing and inhibiting hormones travel to the anterior pituitary through a hypophyseal portal circulation.

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The adenohypophysis consists of which two portions?

  1. Pars distalis and pars intermedia
  2. Pars nervosa and pars distalis
  3. Pars intermedia and pars nervosa
  4. Pars nervosa and the stalk
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Correct answer: A. Pars distalis and pars intermedia

The adenohypophysis has the pars distalis and the pars intermedia, while the pars nervosa is the neurohypophysis.

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