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 is a primary function of oxytocin in the human body?

Increases heart rate

Promotes sodium reabsorption in the kidneys

Regulates blood glucose levels

Stimulates uterine contractions during childbirth

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Verified step by step guidance

Step 1: Begin by identifying oxytocin as a hormone produced by the hypothalamus and stored in the posterior pituitary gland. It plays a significant role in reproductive and social bonding processes.

Step 2: Understand the primary function of oxytocin in the human body. Oxytocin is most well-known for its role in stimulating uterine contractions during childbirth, which helps in the delivery of the baby.

Step 3: Eliminate the incorrect options by analyzing their relationship to oxytocin. For example, oxytocin does not increase heart rate, promote sodium reabsorption in the kidneys, or regulate blood glucose levels. These functions are associated with other hormones like adrenaline, aldosterone, and insulin, respectively.

Step 4: Focus on the correct answer, which is 'Stimulates uterine contractions during childbirth.' This function is critical for labor and delivery, as oxytocin triggers the smooth muscle contractions of the uterus.

Step 5: Reinforce the understanding that oxytocin also plays a role in milk ejection during breastfeeding and in social bonding, but its primary function during childbirth is to stimulate uterine contractions.