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Summary Lecture Notes of The Endoctrine System I Essentials of Human Anatomy and Physiology Eleventh Edition I Global Edition I Elaine N. Marieb $10.49   Add to cart

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Summary Lecture Notes of The Endoctrine System I Essentials of Human Anatomy and Physiology Eleventh Edition I Global Edition I Elaine N. Marieb

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The endocrine system consists of glands that secrete hormones directly into the bloodstream to regulate various bodily functions. The endocrine glands include the pituitary, thyroid, parathyroid, adrenal, pineal, thymus, pancreas and gonads. Hormones act on target cells by either directly activatin...

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  • December 5, 2023
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Chapter 9
The Endocrine
System


Lecture Presentation by
Patty Bostwick-Taylor
Florence-Darlington Technical College

© 2015 Pearson Education, Limited.

, The Endocrine System

▪ Second controlling system of the body
▪ Nervous system is the fast-control system
▪ Uses chemical messengers (hormones) that are
released into the blood
▪ Hormones control several major processes:
▪ Reproduction
▪ Growth and development
▪ Mobilization of body defences
▪ Maintenance of homeostasis
▪ Regulation of metabolism

© 2015 Pearson Education, Limited.

, The Endocrine System

▪ The endocrine system goes along with the nervous
system, coordinates and directs the activity of the
body’s cells. Nervous is fast “built for speed”and
runs through the nerves and uses nerve impulses
while endo is slow and runs through the
bloodstream and uses chemical messengers called
hormones; mobilization of body defenses against
stressors, homeostasis: maintains electrolyte, water
and nutrient balance of the blood; regulating cellular
metabolism and energy balance


© 2015 Pearson Education, Limited.

, Regulation by chemical messengers
▪ Neurotransmitters released by neurons
▪ Hormones release by endocrine glands

endocrine gland
neurotransmitter


axon

hormone
carried by blood



receptor proteins receptor proteins

Lock & Key
system
target cell

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