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5 Written questions

5 Matching questions

  1. Gonads
  2. Prostaglandins
  3. Endocrine System
  4. Epinephirine & Norepinephrine
  5. Antagonistic Hormones
  1. a The ovaries in females, and the testes in males. These are gamete-producing organs that also produce a group of steroid sex hormones. Sex hormones regulate body changes that begin at puberty.
  2. b 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.
  3. c The endocrine glands and specialized cells as a whole.
  4. d Many hormones work together in pairs to regulate the level of critical substances. These hormones have opposite effects.
  5. e These amino acid-based hormones produced in the adrenal medulla are also known as adrenaline and noradrenaline. These hormones work together to orchestrate the nervous system's reaction to stress and its "fight-or-flight" reaction response to danger. When a person is stressed the medulla secretes both hormones into the bloodstream. They increase heart rate, blood pressure, blood glucose level, and blood flow to the heart and lungs. They also stimulate enlargement of the bronchial tubes and dilation of the pupils.

5 Multiple choice questions

  1. It is located beneath the sternum and between the lungs. It plays a role in the development of the immune system. This gland secretes thymosin.
  2. A group of neuropeptides that regulate emotions, influence pain, and affect reproduction.
  3. An amino acid-based hormone that regulates the level of sugar in the blood. It does this by stimulating body cells, especially muscles, to store glucose or use it for energy. It is secreted by the pancreas.
  4. A group of neuropeptides that inhibits pain messages traveling towards the brain.
  5. Hormones secreted by the nervous system. Unlike neurotransmitters, they tend to affect many cells near the nerve cells that release them.

5 True/False questions

  1. TestosteroneA hormone secreted by digestive cells that stimulates other stomach cells to release digestive enzymes such as hydrochloric acid.


  2. PubertyThe adolescent stage during which the sex organs mature and secondary sex characteristics, such as facial hair appear. In males, during this stage, sperm production begins, the voice deepens, the chest broadens, and hair begins to grow on the body and face. In females, the menstrual cycle begins, the breasts grow, and the hips wide.


  3. Parathyroid GlandsThere are four of these glands on the back of the thyroid gland and they secrete parathyroid hormone. This stimulates the transfer of calcium ions from the bones to the blood. It has the opposite effect of calcitonin. A proper balance of calcium ions is necessary for cell division, muscle contraction, blood clotting, and neural signaling.


  4. Release-Inhibiting HormoneThese inhibit production and secretion of anterior-pituitary hormones.


  5. GastrinA hormone secreted by digestive cells that stimulates other stomach cells to release digestive enzymes such as hydrochloric acid.


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