Endocrine Hormones and Secretions
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Questions and Answers

What is the source of thyroxine (T4) that is converted by deiodinases?

  • ADH
  • TSH (correct)
  • Calcitonin
  • GHRH

What is the effect of thyroxine (T4) on metabolic activity?

  • Has no effect on metabolic activity
  • Decreases metabolic activity
  • Initially decreases then increases metabolic activity
  • Increases metabolic activity (correct)

What is the effect of ADH on the body?

  • Increases blood calcium level
  • Inhibits urine production (correct)
  • Stimulates urine production
  • Decreases blood calcium level

Where is ADH produced?

<p>Posterior pituitary (B)</p> Signup and view all the answers

What is the effect of calcitonin on blood calcium level?

<p>Decreases blood calcium level (B)</p> Signup and view all the answers

What is the primary function of Parathyroid Hormone (PTH)?

<p>Regulation of blood calcium levels (B)</p> Signup and view all the answers

Which hormone is responsible for increasing blood glucose levels via gluconeogenesis?

<p>Cortisol (B)</p> Signup and view all the answers

What is the effect of Aldosterone on potassium levels?

<p>Increases potassium excretion (D)</p> Signup and view all the answers

Which of the following is NOT a function of Epinephrine?

<p>Increases immune response (D)</p> Signup and view all the answers

What is the effect of Cortisol on immune response?

<p>Decreases immune response (B)</p> Signup and view all the answers

What is the effect of Angiotensin II on blood pressure?

<p>Increases blood pressure (D)</p> Signup and view all the answers

What is the primary function of Gonadotropin-Releasing Hormone (GnRH)?

<p>To stimulate the production of FSH and LH (B)</p> Signup and view all the answers

Which hormone is responsible for stimulating the production of milk in the breasts?

<p>Prolactin (A)</p> Signup and view all the answers

What is the effect of Thyroid-Stimulating Hormone (TSH) on the thyroid gland?

<p>To increase thyroid hormones (A)</p> Signup and view all the answers

What is the primary function of Oxytocin?

<p>To stimulate uterine contractions during childbirth (B)</p> Signup and view all the answers

What is the effect of Adrenocorticotropic Hormone (ACTH) on the adrenal cortex?

<p>To increase glucocorticoids (C)</p> Signup and view all the answers

What is the primary function of Growth Hormone (GH)?

<p>To stimulate bone and muscle growth (B)</p> Signup and view all the answers

What is the primary function of glucagon in the body?

<p>To increase blood glucose levels (B)</p> Signup and view all the answers

Which hormone inhibits the release of both glucagon and insulin?

<p>Somatostatin (D)</p> Signup and view all the answers

What is the effect of orexin on appetite?

<p>It increases appetite (A)</p> Signup and view all the answers

What is the primary function of gastrin in the digestive system?

<p>To increase HCl secretion and gastric motility (D)</p> Signup and view all the answers

Which hormone is involved in the regulation of blood pressure?

<p>Renin (A)</p> Signup and view all the answers

What is the effect of secretin on the digestive system?

<p>It increases the release of bicarbonate (C)</p> Signup and view all the answers

What triggers the kidneys to secrete the enzyme Renin?

<p>A drop in blood pressure (C)</p> Signup and view all the answers

What is the function of ACE in the blood pressure regulation process?

<p>To convert Angiotensin I to Angiotensin II (D)</p> Signup and view all the answers

What is the effect of Angiotensin II on blood pressure?

<p>It increases blood pressure by various mechanisms (A)</p> Signup and view all the answers

Why are ACE inhibitors prescribed to people with high blood pressure?

<p>To decrease blood pressure by preventing ACE from converting Angiotensin I to Angiotensin II (D)</p> Signup and view all the answers

What is the effect of high blood pressure on the body's response?

<p>It stimulates the brain to decrease blood pressure by increasing urination (B)</p> Signup and view all the answers

What is the role of the liver in the blood pressure regulation process?

<p>It secretes Angiotensinogen, a protein that can be converted to Angiotensin I (B)</p> Signup and view all the answers

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