Health & Medicine Anatomy & Physiology

The Endocrine System Explained

Hormones, glands, feedback loops, and clinical patterns made clear

The Endocrine System Explained logo
Quick Course Facts
18
Self-paced, Online, Lessons
18
Videos and/or Narrated Presentations
6.5
Approximate Hours of Course Media
About the The Endocrine System Explained Course

The Endocrine System Explained is a focused Health & Medicine course that makes hormone biology practical, organized, and easier to apply. Students learn how hormones, glands, feedback loops, and clinical patterns made clear can improve their understanding of metabolism, stress responses, reproduction, growth, calcium balance, and endocrine disorders.

Master The Endocrine System Explained Through Clear Clinical Reasoning

  • Build a strong foundation in hormone signaling, receptor activity, and cellular responses.
  • Understand endocrine feedback loops and how the body maintains homeostasis.
  • Connect glands, lab findings, symptoms, and clinical patterns across major endocrine systems.
  • Gain practical Health & Medicine knowledge for studying, teaching, or healthcare preparation.

A complete Health & Medicine overview of the endocrine system, from hormone biology to applied clinical endocrinology.

This course begins with the foundations of hormone biology, including endocrine signaling, hormone classes, receptors, cellular responses, feedback loops, and homeostasis. Students then move into central endocrine control through the hypothalamus and pituitary, learning how this master control axis influences growth, lactation, water balance, reproduction, metabolism, and stress regulation.

The course also examines the thyroid gland, endocrine pancreas, adrenal cortex, adrenal medulla, parathyroid hormone, vitamin D, calcitonin, and reproductive hormone systems. Lessons connect normal physiology with disorders such as thyroid disease, diabetes mellitus, adrenal excess and deficiency, calcium imbalance, and reproductive endocrine changes across puberty, pregnancy, lactation, and menopause.

By the end of The Endocrine System Explained, students will be able to interpret endocrine concepts with more confidence, recognize patterns in symptoms and labs, and understand how clinicians approach testing, imaging, and treatment principles. This Health & Medicine course turns complex hormones, glands, feedback loops, and clinical patterns made clear into knowledge students can use for study, professional development, and practical medical understanding.

Course Lessons

Full lesson breakdown

Lessons are organized by topic area and each includes descriptive copy for search visibility and student clarity.

Foundations of Hormone Biology

3 lessons

This lesson introduces endocrine signaling as the body’s long-range chemical communication system. Learners will distinguish endocrine signaling from neural, paracrine, autocrine, and exocrine communi…

Lesson 2: Hormone Classes, Receptors, and Cellular Responses

20 min
This lesson explains how chemical structure shapes hormone behavior. Learners distinguish peptide, steroid, amine, and eicosanoid hormones; connect each class to transport, receptor location, speed of…

Lesson 3: Feedback Loops and Homeostasis

19 min
This lesson explains how endocrine feedback loops keep internal conditions within workable ranges. Students learn the roles of sensors, integrating centers, target glands, hormones, receptors, and eff…

Central Endocrine Control

2 lessons

Lesson 4: The Hypothalamus and Pituitary: The Master Control Axis

22 min
This lesson explains how the hypothalamus and pituitary gland coordinate central endocrine control. Students learn the anatomical relationship between the brain, the pituitary stalk, the anterior pitu…

Lesson 5: Growth Hormone, Prolactin, and Posterior Pituitary Hormones

21 min
This lesson completes the central pituitary picture by focusing on growth hormone, prolactin, and the posterior pituitary hormones vasopressin and oxytocin. Learners will connect hypothalamic control …

Metabolism and Energy Balance

4 lessons

Lesson 6: The Thyroid Gland and Metabolic Regulation

22 min
This lesson explains how the thyroid gland regulates metabolic rate, heat production, energy use, cardiovascular tone, growth, and nervous system function through thyroid hormones. Students learn the …

Lesson 7: Thyroid Disorders and Lab Interpretation

23 min
This lesson explains how thyroid disorders are recognized through symptoms, physical patterns, and laboratory results. Students learn to interpret TSH, free T4, free T3, and thyroid antibodies using t…

Lesson 8: The Endocrine Pancreas: Insulin, Glucagon, and Blood Glucose

22 min
This lesson explains how the endocrine pancreas stabilizes blood glucose through the paired actions of insulin and glucagon. Students will learn the major islet cell types, what triggers each hormone,…

Lesson 9: Diabetes Mellitus and Glucose Control

24 min
This lesson explains how normal glucose control works and how diabetes mellitus develops when insulin production, insulin action, or both become inadequate. Learners connect pancreatic beta-cell physi…

Stress, Salt, and Survival

3 lessons

Lesson 10: The Adrenal Cortex: Cortisol, Aldosterone, and Androgens

23 min
This lesson explains the adrenal cortex as a three-zone steroid factory built for survival: cortisol for stress adaptation, aldosterone for salt and volume control, and adrenal androgens for androgen …

Lesson 11: The Adrenal Medulla and the Fight-or-Flight Response

18 min
This lesson explains how the adrenal medulla acts as a fast neuroendocrine extension of the sympathetic nervous system. Students learn how chromaffin cells release epinephrine and norepinephrine, why …

Lesson 12: Adrenal Disorders: Excess, Deficiency, and Testing

24 min
This lesson explains how adrenal disease presents when cortisol, aldosterone, or catecholamine signaling is too high or too low. Learners will connect symptoms such as weight gain, bruising, salt crav…

Minerals, Bone, and Long-Term Regulation

2 lessons

Lesson 13: Calcium Balance: Parathyroid Hormone, Vitamin D, and Calcitonin

22 min
This lesson explains how the body keeps blood calcium within a narrow range using parathyroid hormone, vitamin D, and calcitonin. Learners connect the main target organs: bone, kidney, and intestine, …

Lesson 14: Bone, Kidney, and Gastrointestinal Endocrine Roles

20 min
This lesson explains how bone, kidney, and the gastrointestinal tract function as endocrine organs in long-term mineral regulation. Learners will connect parathyroid hormone, calcitriol, fibroblast gr…

Reproductive Hormone Systems

3 lessons

Lesson 15: Male Reproductive Endocrinology

20 min
This lesson explains male reproductive endocrinology through the hypothalamic-pituitary-gonadal axis, the testicular cell types, and the feedback signals that regulate testosterone production and sper…

Lesson 16: Female Reproductive Endocrinology and the Menstrual Cycle

24 min
This lesson explains the female reproductive endocrine axis as a coordinated conversation between the hypothalamus, pituitary, ovaries, and endometrium. Students learn how GnRH pulses regulate FSH and…

Lesson 17: Puberty, Pregnancy, Lactation, and Menopause

22 min
This lesson explains how reproductive hormone systems change across puberty, pregnancy, lactation, and menopause. It focuses on the hypothalamic-pituitary-gonadal axis, the placenta as a temporary end…

Applied Endocrine Reasoning

1 lesson

Lesson 18: Clinical Endocrinology: Symptoms, Labs, Imaging, and Treatment Principles

25 min
This lesson teaches a practical framework for clinical endocrine reasoning: start with the symptom pattern, decide whether the problem looks like hormone excess or deficiency, use paired hormone tests…
About Your Instructor
Professor Victor Zane

Professor Victor Zane

Professor Victor Zane guides this AI-built Virversity course with a clear, practical teaching style.