Endocrine System Lab
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Questions and Answers

What is the main function of the endocrine glands?

  • To produce hormones that are transported through a duct
  • To produce hormones that influence all cells in the body
  • To secrete hormones directly into the blood (correct)
  • To regulate the immune system

    • What is the primary function of the thyroid gland?

  • To produce hormones that influence metabolic rate (correct)
  • To regulate sleep patterns
  • To produce hormones that influence the immune system
  • To secrete hormones that regulate blood pressure

    • What is the name of the hormone secreted by the pineal gland?

  • Glucagon
  • Insulin
  • Melatonin (correct)
  • Adrenaline

    • What is the name of the 'master gland' of the body?

    <p>Pituitary gland</p> Signup and view all the answers

    What is the function of the hormones secreted by the pancreatic islets?

    <p>To regulate glucose in the blood</p> Signup and view all the answers

    What is the name of the hormone produced by the adrenal gland that helps regulate response to stress?

    <p>Adrenaline</p> Signup and view all the answers

    Study Notes

    Endocrine System

    • Composed of glands that synthesize and secrete hormones directly into the blood without using a duct.
    • Hormones are transported throughout the body, influencing only cells with receptors for that hormone.

    Endocrine Glands

    • Secrete hormones into the blood, which are then transported to other tissues.

    Major Endocrine Glands

    Pituitary Gland

    • Located at the interface between the brain and the rest of the body.
    • Produces numerous hormones affecting various aspects of physiology.
    • Often called the "master gland" due to its regulation of other endocrine glands and direct effects on target tissues.

    Thyroid Gland

    • Secrete hormones triiodothyronine (T3) and thyroxine (T4).
    • Influences metabolic rate, protein synthesis, and calcium metabolism.

    Adrenal Glands

    • Produce hormones regulating metabolism, blood pressure, response to stress, and other essential functions.
    • Include adrenaline and the steroids aldosterone and cortisol.

    Pineal Gland

    • Secrete melatonin, which modulates sleep patterns.

    Pancreatic Islets (Islets of Langerhans)

    • 'Islands' of endocrine cells located within the pancreas.
    • Secrete hormones insulin and glucagon, important in regulating glucose in blood.

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    Description

    This quiz covers the basics of the endocrine system, including its glands, hormones, and how they are transported throughout the body.

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