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

13. The Peripheral Nervous System

Introduction to Sensory Receptors

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to Sensory Receptors

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Multiple Choice

The baroreceptors in the carotid sinus and aortic arch are sensitive to which of the following?

Changes in blood pressure

Body temperature

Levels of blood glucose

Oxygen concentration in the blood

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Verified step by step guidance

Understand the role of baroreceptors: Baroreceptors are specialized nerve endings located in the walls of blood vessels, particularly in the carotid sinus and aortic arch. Their primary function is to detect changes in blood pressure.

Identify the location and function: The carotid sinus is located at the bifurcation of the common carotid artery, and the aortic arch is part of the aorta. Both locations are strategic for monitoring blood pressure changes as blood exits the heart and travels to the brain and body.

Recognize the mechanism of action: Baroreceptors respond to the stretch of the blood vessel walls. When blood pressure increases, the walls stretch more, and baroreceptors send signals to the brain to initiate a response to lower the blood pressure.

Differentiate from other receptors: While baroreceptors are sensitive to blood pressure changes, other receptors in the body are responsible for detecting changes in body temperature, blood glucose levels, and oxygen concentration. For example, chemoreceptors in the carotid and aortic bodies detect changes in blood oxygen levels.

Conclude with the correct answer: Based on the understanding of baroreceptor function, they are sensitive to changes in blood pressure, not to body temperature, blood glucose levels, or oxygen concentration.