To review:
The pathway used by hormones in order to reach their target cells.
Introduction:
An organ that produces as well as releases a substance that accomplishes a specific task in the body is referred to as a gland. Based on the location where the product is released, the glands are classified as an endocrine or an exocrine gland. Hormones are the secretions of the endocrine gland.
Explanation of Solution
Hormones are released into the extracellular spaces by the endocrine glands and enter the nearby capillaries through which they travel across the body and target specific organs that are situated at a distant location.
Hormones circulate in the entire body within the blood. These secretions exit the bloodstream and come in contact with majority of tissues of the body. However, they only exert their effect on specific target cells. The target cells contain receptors to which the molecules of hormones bind which is then followed by certain changes in the target cells.
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Chapter 17 Solutions
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