Chapter 45

Hormones and the Endocrine System

Understand chemical coordination in animals. Master the endocrine system - one of the highest-yield physiology topics.

10 Hours

Olympiad 5/5

Advanced

NEETRequired

MCATRequired

AP BiologyRequired

IB BiologyRequired

USABO

5/5

BBO

5/5

INBO

5/5

IBO

5/5

Key Topics Covered

Hormone types and mechanisms

Hypothalamus-pituitary axis

Thyroid and parathyroid

Adrenal glands

Pancreatic hormones

Compare hormone signaling mechanisms

Explain hypothalamus-pituitary control

Describe major gland functions

Understand hormone disorders

Extremely important! Chemical Coordination and Integration is heavily tested with questions on all major hormones.

Olympiads test hormone receptor mechanisms, feedback loops, and endocrine disorders in detail.

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