Medical Terminology Simplified

Thyroid Gland

9–27 The (2) thyroid glandcontains two lobes connected by a thin bridge of

tissue called the isthmus. Locate and label the thyroid gland in Figure 9–3.

9–28 The CFs for thyroid gland are thyr/oand thyroid/o. Use thyroid/oto form

a word that means excision of the thyroid gland.

____________________ / ____________________

9–29 Use thyr/oto construct words that mean

enlargement of the thyroid gland:__________ / _____ / ____________________

disease of the thyroid gland:__________ / _____ / ____________________

incision of the thyroid gland:__________ / _____ / __________

9–30 Table 9–2 on page 407 outlines thyroid hormones along with their func-

tions and selected associated disorders. Refer to the table to complete Frames 9–30

through 9–32.

The thyroid gland secretes three hormones, two of which regulate the body’s metab-

olism (rate at which food is converted into heat and energy). These hormones are

called__________ and __________.

9–31 In conjunction with parathyroid hormone (PTH), calcium levels in the

blood are regulated by secretion of the thyroid hormone called__________.

9–32 When does calcitonin exert its most important effects in the body?

9–33 Hyper/thyroid/ism is caused by excessive secretion of the thyroid gland.

The gland increases the body’s metabolism and intensifies the demand for food.

Analyze hyper/thyroid/ism by defining the elements.

hyper-:____________________, ____________________ ____________________

thyroid:____________________ ____________________

-ism:____________________

Frame 9–26to Frame 9–33

Endocrine System • CHAPTER 9 405

thyroid/ectomy

thī-royd-ĔK-tō-mē

thyr/o/megaly

thī-rō-MĔG-ă-lē

thyr/o/pathy

thī-RŎP-ă-thē

thyr/o/tomy

thī-RŎT-ō-mē

excessive, above normal

thyroid gland

THĪ-royd

condition

To check answers for

Frames 9–30 through

9–32, refer to Table 9–2

on page 407.