The term hormone was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning to excite or set in motion. The term endocrine was introduced shortly thereafter Endocrine is used to refer to glands that secret products into the bloodstream. The term endocrine contrasts with exocrine, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.
1.What is the authors main purpose in the passage?
A.To explain the specific functions of various hormones.
B.To provide general information about hormones.
C.To explain how the term hormone evolved.
D.To report on experiments in endocrinology.
2.The passage supports which of the following conclusions?
A.The human body requires large amounts of most hormones.
B.Synthetic hormones can replace a persons natural supply of hormones if necessary.
C.The quantity of hormones produced and their effects on the body are related to a persons age.
D.The short child of tall parents very likely had a hormone deficiency early in life.
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