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5 Written questions

5 Matching questions

  1. Pars distalis
  2. Calcitonin (CT)
  3. Type 2 DM
  4. Neuro control of aMSH
  5. Dopamine
  1. a dec blood Ca by acting on bone to inhibit osteoclast activity; produced by C cells (parafollicular cells that arise from ultimobranchial glands in mammals, migrate to thyroid gland) located in thyroid gland
  2. b inhibition (Dop hyperpolarizes aMSH secreting cells and inhibits MSH release) stimulation (Acetylcholine depolarizes MSH secreting cells and stimulates MSH release)
  3. c neurotransmitter; inhibits prolactin release; agonists inhibit PRL release from AP, antagonists stimulate release; Hyperprolactinemia in 28% women with menstrual abnormalities, treat with dopamine agonists (parlodel, bromocryptine mesylate)
  4. d Maturity onset, non insulin; most common; insulin level may be low nl or high; insulin normally not required to tx but may facilitate management
  5. e major part of adenohypophysis

5 Multiple choice questions

  1. highest during sleep, hypothalamic control, hypoglycemia stimulus released
  2. Melanin pigment; eumelanins (black/brown) and pehomelanins (yellow/red); pig's in melanostomes (fully melanized organelle); located in dermis/epidermis
  3. glucogenic AA can be converted to carbs: alanin and glutamine most impt, leucine and lysine cant be used
  4. Cortisol (neg feedback) Thyroxine, Estradiol/testosterone
  5. dec in cAMP increase free Ca2+ causing contraction of melanofilaments whic hpull melanosomes into smaller area, causing lightened skin

5 True/False questions

  1. Distribution of cellsstain with acid dyes (GH, PRL cells)


  2. PRL secretioninc during sleep/pregnancy; stimulated by nursing; inhibited by dopamine


  3. Hypoparathyroidismpolypeptide essential for life; fxns to inc blood CA levels, produced by chief cells of parathyroid gland;


  4. Regulation of hungerGhrelin (stimulates ) and Obestatin (suppresses); ratio important; precursor molecule has opposite effect


  5. Glucagon like peptide-1 (GLP-1)intestinal peptide encoded in proglucagon gene; produced by L cells of the intestine; stimulates insulin release in presence of glucose and suppresses glucagon secretion