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

In response to a specific stimulus, autonomic reflex arcs can trigger which of the following responses?

Conscious perception of pain

Initiation of reflexes in the cerebral cortex

Voluntary movement of skeletal muscles

Increased heart rate

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Verified step by step guidance

Step 1: Understand the role of autonomic reflex arcs. These are involuntary responses controlled by the autonomic nervous system (ANS), which regulates functions such as heart rate, digestion, and respiratory rate without conscious control.

Step 2: Eliminate incorrect options by analyzing their relationship to the autonomic nervous system. For example, 'Conscious perception of pain' and 'Initiation of reflexes in the cerebral cortex' are functions of the somatic nervous system or higher brain centers, not the autonomic nervous system.

Step 3: Recognize that 'Voluntary movement of skeletal muscles' is controlled by the somatic nervous system, which governs voluntary actions, not autonomic reflex arcs.

Step 4: Focus on the correct answer, 'Increased heart rate,' which is a classic example of an autonomic reflex response. The sympathetic division of the autonomic nervous system is responsible for increasing heart rate in response to stimuli such as stress or physical activity.

Step 5: Relate this concept to real-life scenarios, such as the 'fight or flight' response, where the autonomic nervous system triggers increased heart rate to prepare the body for action.