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 correctly lists the main components involved in the baroreceptor reflex?

Baroreceptors, sensory afferent neurons, cardiovascular center in the medulla, efferent autonomic fibers, and effector organs (heart and blood vessels)

Thermoreceptors, hypothalamus, parasympathetic ganglia, and sweat glands

Chemoreceptors, spinal cord, motor neurons, and skeletal muscles

Photoreceptors, thalamus, sympathetic chain, and adrenal cortex

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Verified step by step guidance

Step 1: Understand the baroreceptor reflex. The baroreceptor reflex is a mechanism that helps regulate blood pressure by detecting changes in the stretch of blood vessel walls. Baroreceptors are specialized sensory receptors located in the carotid sinus and aortic arch.

Step 2: Identify the sensory pathway. Baroreceptors send signals via sensory afferent neurons to the cardiovascular center in the medulla oblongata, which processes the information about blood pressure changes.

Step 3: Determine the integration center. The cardiovascular center in the medulla acts as the integration center, analyzing the input from baroreceptors and deciding the appropriate response to maintain homeostasis.

Step 4: Recognize the efferent pathway. The cardiovascular center sends signals through efferent autonomic fibers, which include both sympathetic and parasympathetic fibers, to the effector organs.

Step 5: Identify the effector organs. The effector organs involved in the baroreceptor reflex are the heart and blood vessels. These organs adjust heart rate, contractility, and vascular tone to stabilize blood pressure.