EXERCISES, LESSON 6
INSTRUCTIONS: The following exercises are to be answered by marking the lettered
response that best answers the question or best completes the incomplete statement or
by writing the answer in the space provided.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers.
Endocrine glands are best described as:
a. Duct glands that secrete a chemical substance through a system of ducts into
a body cavity or onto the surface of the body.
b. Glands that secrete chemical substances through the lymphatic system of the
Ductless glands which secrete their hormones directly into the bloodstream
instead of through a duct or duct system.
d. Glands that have no ducts, but are actively involved in the production of
perspiration and stomach acid.
Which of the following are endocrine glands?
a. Pituitary gland, parathyroid gland, and the gonads.
b. Suprarenal (adrenal) glands, thyroid gland, and salivary glands.
Thyroid gland, Islets of Langerhans, and sweat glands.
d. Pancreas, pituitary gland, and gallbladder.
The principle function of the parathyroid glands is the production of :