Histology MCQ MD: Endocrine System Characteristics
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Questions and Answers

Which of the following is NOT a characteristic of the endocrine system?

  • Glands with ducts (correct)
  • Products secreted into blood
  • Secretes hormones
  • Non localized response

    • What type of hormone is testosterone?

  • Catecholamine
  • Amino acid chain
  • Protein
  • Steroid (correct)

    • What organ is nicknamed the 'master gland'?

  • Adrenal cortex
  • Heart
  • Adrenal medulla
  • Brain (correct)

    • What cell type secretes ACTH?

    <p>Corticotropic cells</p> Signup and view all the answers

    Where is corpora arenacea found?

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

    Which gland secretes melatonin?

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

    What type of hormone is insulin?

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

    What connects the pituitary to the hypothalamus?

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

    Which of the following is not part of the adenohypophysis?

    <p>Pars nervosa</p> Signup and view all the answers

    What cell type secretes prolactin?

    <p>Lactotropic cells</p> Signup and view all the answers

    Which of the following cells can be classified as an acidophil?

    <p>Lactotropic cells</p> Signup and view all the answers

    Which gland secretes calcitonin?

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

    Where is glucagon secreted from?

    <p>Alpha cells</p> Signup and view all the answers

    Which of the following is a component of the adrenal medulla?

    <p>Chromaffin cells</p> Signup and view all the answers

    What are the cells of the pineal gland called?

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

    What type of hormone is prolactin?

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

    Which of the following hormones is NOT a steroid?

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

    Which gland is responsible for secreting glucocorticoids?

    <p>Zona reticularis</p> Signup and view all the answers

    Where are the chromaffin cells located?

    <p>Adrenal medulla</p> Signup and view all the answers

    What type of hormone is calcitonin?

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

    Which cell type secretes thyroglobulin?

    <p>Follicular cell</p> Signup and view all the answers

    What is the main function of the adrenal cortex?

    <p>Maintenance of glucose levels</p> Signup and view all the answers

    Which type of hormone is insulin?

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

    What cell type secretes MSH (melanocyte-stimulating hormone)?

    <p>Gonadotropic cells</p> Signup and view all the answers

    Where is glucagon secreted from?

    <p>Alpha cells</p> Signup and view all the answers

    Which gland secretes calcitonin?

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

    Where are tropic hormones secreted from?

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

    Which of the following is a component of the adrenal medulla?

    <p>Chromaffin cells</p> Signup and view all the answers

    Which gland secretes cortisol?

    <p>Adrenal gland (cortex)</p> Signup and view all the answers

    What cell type is found in the adrenal medulla?

    <p>Principal cell</p> Signup and view all the answers

    Which of the following cells can be classified as an acidophil?

    <p>None of the above</p> Signup and view all the answers

    What type of hormone is prolactin?

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

    Study Notes

    Characteristics of the Endocrine System

    • The endocrine system does not have a characteristic of voluntary muscle involvement.

    Hormones

    • Testosterone is a steroid hormone.
    • Insulin is a peptide hormone.
    • Prolactin is a protein hormone.
    • Calcitonin is a peptide hormone.
    • Melatonin is a hormone secreted by the pineal gland.
    • Glucagon is a peptide hormone secreted by the pancreas.
    • ACTH (adrenocorticotropic hormone) is a hormone secreted by the corticotrophs.

    Glands and Organs

    • The pituitary gland is nicknamed the 'master gland'.
    • The pineal gland secretes melatonin.
    • The thyroid gland secretes calcitonin.
    • The adrenal gland secretes cortisol and has an outer cortex and inner medulla.
    • The pancreas secretes glucagon.

    Cells and Tissues

    • Corticotrophs are the cell type that secretes ACTH.
    • Lactotrophs are the cell type that secretes prolactin.
    • Acidophils are the cell type that can be classified as an acidophil.
    • Chromaffin cells are located in the adrenal medulla.
    • Pinealocytes are the cells of the pineal gland.
    • Thyrotrophs are the cell type that secretes thyroglobulin.
    • Melanotrophs are the cell type that secretes MSH (melanocyte-stimulating hormone).

    Connections and Functions

    • The infundibulum connects the pituitary to the hypothalamus.
    • The main function of the adrenal cortex is to secrete glucocorticoids.
    • Tropic hormones are secreted from the anterior pituitary gland.
    • The adrenal medulla is a component of the adrenal gland and secretes catecholamines.

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    Description

    Test your knowledge of the characteristics of the endocrine system with this multiple-choice quiz. Identify the features and types of hormones associated with the endocrine system, and assess your understanding of its key components like the 'master gland'.

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