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Questions and Answers
Which gland is stimulated by the release of PTH from the anterior pituitary?
Which gland is stimulated by the release of PTH from the anterior pituitary?
What is the function of TSH?
What is the function of TSH?
What is the function of ACTH?
What is the function of ACTH?
Which hormone triggers ovulation in females?
Which hormone triggers ovulation in females?
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Which hormone stimulates the testes to produce testosterone in males?
Which hormone stimulates the testes to produce testosterone in males?
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Which hormone inhibits the release of Growth Hormone?
Which hormone inhibits the release of Growth Hormone?
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What is the function of GH (Growth Hormone)?
What is the function of GH (Growth Hormone)?
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Which hormone is released from the adrenal cortex in response to reduced plasma volume?
Which hormone is released from the adrenal cortex in response to reduced plasma volume?
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Which hormone is released when low plasma glucose levels occur?
Which hormone is released when low plasma glucose levels occur?
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Which enzyme is responsible for the breakdown of triglycerides into free fatty acids?
Which enzyme is responsible for the breakdown of triglycerides into free fatty acids?
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Which receptors are up-regulated after four weeks of exercise?
Which receptors are up-regulated after four weeks of exercise?
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Which hormone is released from the posterior pituitary in response to dehydration?
Which hormone is released from the posterior pituitary in response to dehydration?
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Which phase of General Adaptation Syndrome (GAS) is dominated by glucocorticoids?
Which phase of General Adaptation Syndrome (GAS) is dominated by glucocorticoids?
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Which hormone is released from the adrenal cortex in response to stress?
Which hormone is released from the adrenal cortex in response to stress?
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Which organ systems may experience failure during the Exhaustion Phase of General Adaptation Syndrome (GAS)?
Which organ systems may experience failure during the Exhaustion Phase of General Adaptation Syndrome (GAS)?
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Which hormone is responsible for the reabsorption of water by the kidneys?
Which hormone is responsible for the reabsorption of water by the kidneys?
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Which hormone stimulates milk production in females?
Which hormone stimulates milk production in females?
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Which hormone inhibits the release of Prolactin and milk production?
Which hormone inhibits the release of Prolactin and milk production?
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Which hormone decreases water loss in the kidneys and elevates blood pressure?
Which hormone decreases water loss in the kidneys and elevates blood pressure?
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Which hormone stimulates contraction cells in mammary glands and smooth muscle cells in the uterus?
Which hormone stimulates contraction cells in mammary glands and smooth muscle cells in the uterus?
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Which gland produces T3 and T4 hormones that regulate metabolism?
Which gland produces T3 and T4 hormones that regulate metabolism?
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Which gland produces parathyroid hormone (PTH) in response to low calcium levels?
Which gland produces parathyroid hormone (PTH) in response to low calcium levels?
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Which hormone lowers blood glucose levels by increasing glucose uptake?
Which hormone lowers blood glucose levels by increasing glucose uptake?
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Which of the following is NOT a function of the endocrine system?
Which of the following is NOT a function of the endocrine system?
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What is the difference between paracrine communication and hormonal communication?
What is the difference between paracrine communication and hormonal communication?
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What are up-regulation and down-regulation?
What are up-regulation and down-regulation?
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What is the difference between tropic hormones and trophic hormones?
What is the difference between tropic hormones and trophic hormones?
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What are neurohormones?
What are neurohormones?
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Which part of the body has both neural and endocrine functions?
Which part of the body has both neural and endocrine functions?
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How many important peptide hormones does the pituitary gland release?
How many important peptide hormones does the pituitary gland release?
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Study Notes
The Endocrine System: Key Facts and Functions
- The endocrine system includes cells and tissues that produce hormones or paracrine factors.
- It functions to maintain an optimal biochemical environment, influence metabolic activities, regulate growth and development, and control sexual reproduction.
- Paracrine communication refers to chemical messengers between cells within one tissue, while hormones are chemicals secreted into the bloodstream for transport to distant target tissues.
- Up-regulation and down-regulation are processes where target cells form more or lose receptors in response to hormones.
- Tropic hormones stimulate the release of another hormone, while trophic hormones stimulate growth and nourishment of a gland.
- Stress is any condition that threatens homeostasis, and neurohormones are hormones released by neurons into the bloodstream.
- The pancreas has clusters of endocrine cells called pancreatic islets, and the hypothalamus has both neural and endocrine functions.
- The hypothalamus regulates both the nervous and endocrine systems, secretes regulatory hormones, and exerts direct neural control over the endocrine cells of the adrenal medullae.
- The pituitary gland releases nine important peptide hormones, divided into the anterior pituitary (adenohypophysis) and posterior pituitary (neurohypophysis).
- The nervous system can modify the stimulation of endocrine glands and their negative feedback mechanisms.
- Hormone concentrations in the blood reflect the rate of release and the speed of inactivation and removal from the body.
- The endocrine system is responsible for both short-term crisis management and long-term ongoing metabolic activity management.
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Description
Test your knowledge on the key facts and functions of the endocrine system with this informative quiz. Explore topics such as hormone production, regulation, and the role of various glands. Challenge yourself and learn more about this crucial system that regulates our body's biochemical environment.
