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 of the following is an effect of the sympathetic division on the circulatory system?

Decreased blood pressure

Increased heart rate

Decreased cardiac output

Constriction of blood vessels in skeletal muscles

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Verified step by step guidance

Step 1: Begin by understanding the role of the sympathetic division of the autonomic nervous system. The sympathetic division is responsible for the 'fight or flight' response, which prepares the body for action during stress or emergencies.

Step 2: Analyze how the sympathetic division affects the circulatory system. It typically increases heart rate, enhances cardiac output, and redirects blood flow to essential organs and muscles by constricting or dilating blood vessels as needed.

Step 3: Evaluate each option provided in the question. For example, 'Decreased blood pressure' is inconsistent with the sympathetic response, as it usually increases blood pressure to ensure adequate blood flow during stress.

Step 4: Consider the correct answer, 'Increased heart rate,' which aligns with the sympathetic division's role in preparing the body for action by pumping more blood to vital areas.

Step 5: Review the other options, such as 'Decreased cardiac output' and 'Constriction of blood vessels in skeletal muscles,' and explain why they are incorrect. The sympathetic division increases cardiac output and typically dilates blood vessels in skeletal muscles to enhance blood flow during activity.