The endocrine system is a complex network of glands and hormones that regulate bodily functions and maintain homeostasis. Hormones are released into the bloodstream to activate target cells and produce a response. Important glands include the pituitary, thyroid, adrenal, pancreas, and gonads. Under...
,1. Introduction to biological
systems • This session:
2. Gas exchange and mass • Endocrine system
transport overview
3. Cardiovascular system • Homeostasis and
4. Digestive system feedback control
5. Nervous system • Hormones
6. Nerves, muscles and • Hormonal control of
movement
blood glucose
7. Homeostasis and hormones
• Role of insulin
8. Immune system
• Type 1 and 2 Diabetes
9. Pathogens and disease
10. Ecosystems
,• To describe the roles of the endocrine system in
maintaining homeostasis, integrating growth and
development, and responding to environmental
changes
• To understand the production and general function of
hormones
• To understand the role of hormones in homeostasis
and the control of blood sugar
, • Two major body systems convey information and
allow humans to detect and respond to stimuli from
the external or internal environment
• Nervous system
• Fast-acting communication system
• Sends information as electrochemical impulses using neurons
• Endocrine system
• Slow-acting, causes longer lasting responses
• Hormones used as chemical signals
Feature Endocrine system Nervous system
Type of signal Chemical (hormones) Electrical
Travels by… Bloodstream Special cells - neurones
How fast? Usually quite slow Usually very rapid
Causes… Usually gradual changes Rapid, instant responses
Act on… Only on target organs Only on specific effectors
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