Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

16. The Endocrine System

Introduction to the Endocrine System

Anatomy & Physiology

16. The Endocrine System

Introduction to the Endocrine System

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

How is the production of hormones such as thyroxine and estrogen regulated in the endocrine system?

By a negative feedback mechanism involving the hypothalamus and pituitary gland

By direct stimulation from the autonomic nervous system

Through a positive feedback loop involving the hypothalamus and pituitary gland

Through the direct action of digestive enzymes

Previous problemNext problem

Verified step by step guidance

Understand the role of the endocrine system: The endocrine system is responsible for producing and regulating hormones, which are chemical messengers that travel through the bloodstream to target organs.

Identify the key players in hormone regulation: The hypothalamus and pituitary gland are central to regulating many hormones, including thyroxine and estrogen. They work together to maintain homeostasis in the body.

Explore negative feedback mechanisms: Negative feedback is a process where the output of a system acts to reduce or dampen the processes that lead to the output of that system, thus maintaining an equilibrium. In the context of hormone regulation, when hormone levels rise, signals are sent to reduce production.

Examine the role of the hypothalamus and pituitary gland: The hypothalamus releases hormones that stimulate the pituitary gland to release other hormones. For example, the hypothalamus releases Thyrotropin-releasing hormone (TRH), which prompts the pituitary to release Thyroid-stimulating hormone (TSH), leading to thyroxine production.

Consider other mechanisms: While negative feedback is the primary mechanism for hormone regulation, it's important to recognize that other processes, such as direct stimulation by the autonomic nervous system or positive feedback loops, can also play roles in specific contexts.