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

14. The Autonomic Nervous System

Introduction to the Autonomic Nervous System

Anatomy & Physiology

14. The Autonomic Nervous System

Introduction to the Autonomic Nervous System

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Multiple Choice

Which target organ receives dual innervation from both the sympathetic and parasympathetic divisions of the autonomic nervous system?

Blood vessels

Adrenal medulla

Heart

Sweat glands

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Verified step by step guidance

Understand the concept of dual innervation: Dual innervation refers to the situation where an organ receives nerve fibers from both the sympathetic and parasympathetic divisions of the autonomic nervous system, allowing for more precise control of its function.

Identify the role of the sympathetic division: The sympathetic division is responsible for the 'fight or flight' response, generally increasing heart rate, dilating airways, and mobilizing energy stores.

Identify the role of the parasympathetic division: The parasympathetic division is responsible for the 'rest and digest' response, generally decreasing heart rate, constricting airways, and promoting digestion and energy storage.

Recognize the heart as a target organ: The heart receives dual innervation, meaning it is influenced by both the sympathetic and parasympathetic divisions. The sympathetic division increases heart rate and force of contraction, while the parasympathetic division decreases heart rate.

Compare with other options: Blood vessels, adrenal medulla, and sweat glands do not receive dual innervation. Blood vessels are primarily controlled by the sympathetic division, the adrenal medulla is directly stimulated by sympathetic nerves, and sweat glands are also primarily under sympathetic control.