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5 Written questions

5 Matching questions

  1. Releasing Hormone
  2. Prostaglandins
  3. Neurosecretory Cells
  4. Endocrine System
  5. Islets of Langerhans
  1. a Specialized cells in the pancreas that act as an endocrine gland. They secrete two amino acid-based hormones that regulate the level of sugar in the blood. The hormones are insulin and glucagon.
  2. b The endocrine glands and specialized cells as a whole.
  3. c Nerve cells that secrete hormones. The axons of these cells in the hypothalamus extend into the posterior lobe of the pituitary. Oxytocin and ADH are transported through these axons into the posterior pituitary where they are stored for eventual release into the bloodstream.
  4. d Stimulate the anterior pituitary to make and secrete hormones.
  5. e Modified fatty acids that are secreted by most cells. They accumulate in areas where tissues are disturbed or injured. Some reduce blood pressure, and others raise blood pressure. Some cause smooth muscles to contract while still others cause smooth muscles to relax. Some even cause fever. Aspirin and acetaminophen reduce fever and decrease pain by inhibiting prostaglandin synthesis.

5 Multiple choice questions

  1. An androgen secreted by the testes that regulates male secondary sex characteristics. It also, along with FSH, stimulates sperm production.
  2. This gland is located near the base of the brain and it secretes melatonin.
  3. Many hormones work together in pairs to regulate the level of critical substances. These hormones have opposite effects.
  4. These sex hormones are stimulated to be produced by LH and FSH in females. In preparation for a possible pregnancy, these sex hormones cause the monthly release of an egg by an ovary and buildup of the uterine lining. Estrogen also regulates female secondary sex characteristics.
  5. Excessive insulin causes this, a disorder that causes glucose to be stored rather than used and properly delivered to body cells. This leads to lowered blood glucose concentrations and subsequent release of glucagon and epinephrine. Symptoms include lethargy, dizziness, nervousness, overactivity, and in extreme cases, unconsciousness and death.

5 True/False questions

  1. Digestive CellsEndocrine cells within the walls of some digestive organs also secrete a variety of hormones that control digestive processes. Some examples of these hormones include gastrin and secretin.


  2. Positive FeedbackAnother way to maintain homeostasis is a positive feedback loop. In this process, release of an initial hormone stimulates release or production of other hormones or substances which stimulate further release of the initial hormone.


  3. HypothyroidismWhen there is a deficiency in thyroid hormones. Symptoms of this include: growth retardation, lethargy, weight gain, and low heart rate and body temperature. It can also cause cretinism, a form of mental retardation.


  4. EndorphinsA group of sex hormones secreted by the testes.


  5. EnkephalinsA group of neuropeptides that inhibits pain messages traveling towards the brain.