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Chapter 16 Endocrine System

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Chapter 16 Endocrine System
Chapter 16: Endocrine System

For this assignment, please read the chapter and answer the questions below. Please type your answers in red or blue color.
Please note that points may be deducted if answers are not submitted in these colors.

There is a tutorial on the endocrine glands in Blackboard under the Lab Tutorial button. Use it to study the glands. Under the External Links button

The nervous and endocrine systems maintain homeostasis in the body. The nervous system is a fast but short-lived response that uses neurons and neurotransmitters to change the metabolism of the cells in the body (ex: stimulates muscle contractions). In contrast, the endocrine system is a slow but long-lasting response that uses glands which release hormones (chemicals) into the bloodstream.

Endocrine System:

The endocrine system is made up of the cells, tissues, and organs that secrete hormones into body fluids such as the blood stream. What is its function?

-It influences metabolic activity by means of hormones and along with the nervous system, it coordinates and integrates activity of body cells.

ENDOCRINE GLANDS:
Pituitary Gland-Overview: The pituitary gland is attached to the base of the brain and has a front lobe called the anterior pituitary and a rear lobe called the posterior pituitary. The brain controls the activity of the pituitary gland in two ways.
Releasing hormones from the hypothalamus control the secretions of the anterior pituitary and are carried in the bloodstream by hypophyseal portal veins.

The posterior pituitary releases hormones into the bloodstream in response to nerve impulses from the hypothalamus.

Anterior Pituitary Gland: The anterior pituitary consists mostly of epithelial tissue arranged around blood vessels and enclosed in a capsule of collagenous connective tissue. How many different types of hormones does the anterior pituitary gland secrete? 6 Most of these hormones

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