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Endocrine System

Science

QuestionAnswer
Function of glands. Secrete hormones.
Hormones. Chemical messenger.
Life process involved with the endocrine system. Regulation.
Regulation. Control and coordination.
Receptor molecules must have a specific __________ that matches the _____________ of the hormone. Shape.
Name of the cell that has the correct receptor shape for the hormone. Target cell.
Name of the cell that does not have the correct receptor shape for the hormone. Non-Target cell.
A type of feedback mechanism or loop that tends to oppose an initial change and thus maintains the stability of the quantities involved. Negative feedback.
Why is negative feedback important for an organism? It helps it maintain homeostasis.
What does a graph showing negative feedback look like? A series of lines that go up and down constantly.
Describe how negative feedback affects the endocrine system. The secretion of a hormone is controlled by the concentration of another substance in the blood, often another hormone.
Pituitary gland. Controls the activity of other glands and hormones, otherwise known as the "master gland", located in the brain.
Four hormones secreted by the pituitary gland. TSH (thyroid hormone), ACTH, GH (growth hormone), and FSH (egg cells).
Hypothalamus. Controls the release of hormones by the pituitary and serves as a major link between the nervous system and the endocrine system, helps with temperature regulation.
Thyroid gland. Located in the neck, secretes thyroxine, regulates rate of metabolism.
Parathyroid gland. Located on the side of the thyroid gland, secretes parathormone, regulates calcium and phosphate metabolism.
Adrenal gland. Located on the top of the kidneys, secretes adrenaline, epinephrine, and cortisone, activated during emergencies and stressful situations.
Pancreas. Otherwise known as Islets of Langerhans, secretes glucagon (increases carbs) and insulin (decreases carbs), affects glucose levels, can lead to diabetes.
Gonads. Sex glands.
Ovaries. Produce egg cells, secrete estrogen and progesterone.
Testes. Produce sperm cells, secrete testosterone.
Created by: emarciante9
 

 



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