NAME ____________________________________ LAB TIME/DATE _______________________
S H E E T
EXERCISE
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Functional Anatomy of the Endocrine Glands
Gross Anatomy and Basic Function of the Endocrine Glands
1. Both the endocrine and nervous systems are major regulating systems of the body; however, the nervous system has been compared to an airmail delivery system and the endocrine system to the pony express. Briefly explain this comparison.
The nervous system employs electrochemical impulses to bring about rapid control, whereas the endo system is more
slowly acting with hormones.
Substance secreted by the endrocrine tissues into the blood that acts to target tissue to produce 2. Define hormone. specific response
3. Chemically, hormones belong chiefly to two molecular groups, the and the amino acid-bases
steroids
.
4. What do all hormones have in common?
5. Define target organ.
organs that respond to a particular hormone
Ability of the target tissue to 6. If hormones travel in the bloodstream, why don’t all tissues respond to all hormones? respond depends on the ability of the hormone to bind with specific receptors on cells plasma membrane or within the cell
7. Identify the endocrine organ described by each of the following statements.
thyroid adrenal pancreas testes parathyroid gland ovary thymus pineal gland
1. 2. 3. 4. 5. 6. 7. 8.
located in the throat; bilobed gland connected by an isthmus found close to the kidney a mixed gland, located close to the stomach and small intestine paired glands suspended in the scrotum ride “horseback” on the thyroid gland found in the pelvic cavity of the female, concerned with ova and female hormone production found in the upper thorax overlying the heart; large during youth found in the roof of the third ventricle
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8. For each statement describing hormonal effects, identify the hormone(s) involved by choosing a number from key A, and note the