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

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Multiple Choice

Which of the following hormones is secreted by the posterior lobe of the pituitary gland?

Prolactin

Oxytocin

Adrenocorticotropic hormone (ACTH)

Growth hormone

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Verified step by step guidance

Step 1: Understand the anatomy of the pituitary gland. The pituitary gland has two lobes: the anterior lobe (adenohypophysis) and the posterior lobe (neurohypophysis). Each lobe secretes specific hormones.

Step 2: Learn the function of the posterior lobe. The posterior lobe does not produce hormones itself; instead, it stores and releases hormones produced by the hypothalamus. These hormones are oxytocin and antidiuretic hormone (ADH, also called vasopressin).

Step 3: Review the hormones listed in the question. Prolactin, ACTH, and growth hormone are secreted by the anterior lobe of the pituitary gland, not the posterior lobe.

Step 4: Identify oxytocin as one of the hormones secreted by the posterior lobe. Oxytocin is involved in processes such as uterine contractions during childbirth and milk ejection during breastfeeding.

Step 5: Conclude that the correct answer is oxytocin, as it is the only hormone listed that is secreted by the posterior lobe of the pituitary gland.