Endocrine System

    Endocrine System
    What is one mechanism of hormone action?
    Some hormones (corticosteroids) determine which genes are transcribed in the nucleus.
    Endocrine System
    The adrenal medulla produces which of the following?
    The adrenal cortex produces weak androgens and mineralocorticoids.
    Endocrine System
    What hormone(s) does the adrenal medulla produce?
    Epinephrine and norepinephrine are produced in the adrenal medulla (the deep or inside part). Aldosterone is a mineralocorticoid, which like corticosteroids and glucocorticoids, as the “cortico” in the name suggests, are all produced in the adrenal cortex.
    Endocrine System
    Iodine is an essential component of which hormone?
    Thyroid hormones T3 and T4 contain three and four iodine atoms, respectively.
    Endocrine System
    Which two hormones are stored in the posterior pituitary prior to their release?
    OT and ADH are produced in the hypothalamus before being transported to the posterior pituitary.
    Endocrine System
    The structure that secretes regulatory hormones that control the pituitary gland is known as the:
    Hypothalamus is structure. Hypophysis is another name for the pituitary gland.
    Endocrine System
    The posterior pituitary does which one of the following?
    OT and ADH are made in hypothalamus and passed along neurones to the posterior pituitary.
    Endocrine System
    How do calcitonin or parathyroid hormone controls blood calcium levels?
    PTH acts to increase blood calcium levels. Hence less is required when blood calcium level is high.
    Endocrine System
    What may be correctly said about oxytocin and antidiuretic hormone?
    The hypothalamus produces ADH and OT. The posterior pituitary releases them.
    Endocrine System
    Which statement is NOT CORRECT about hormones?
    Steroid hormones are not based on amino acids. They are lipids.