398 CHAPTER 9• Endocrine and Nervous Systems
SECTION REVIEW 9-1
For the following medical terms, first write the suffix and its meaning. Then translate the meaning of the
remaining elements starting with the first part of the word. The first word is completed for you.
Term Definition- toxic/o/logist -logist: specialist in study of; poison
- pancreat/itis
- thyr/o/megaly
- hyper/trophy
- gluc/o/genesis
- hypo/calc/emia
- adrenal/ectomy
- poly/dipsia
- aden/oma
- thyroid/ectomy
Competency Verification:Check your answers in Appendix B: Answer Key, page 591. If you are not satisfied with
your level of comprehension, review the vocabulary and retake the review.
Correct Answers × 10 = % Score
Hormones
9–1 Hormones are chemical substances produced by specialized cells of the body.
Because they travel in the blood, hormones reach all body tissues. However, only
target organs contain receptors that recognize a particular hormone. The receptors
maintain the tissue’s responsiveness to hormonal stimulation.
Review Figure 9–2, which illustrates hormones of the pituitary gland and their target
organs. The organs shown in Figure 9–2 are directly affected by the amounts of
hormones released into the bloodstream by the pituitary gland. For example, under-
production of growth hormone (GH) in children results in dwarfism.Boldfaceindicates a word root or combining form. Blueindicates a suffix. Pinkindicates a prefix.