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

In what two ways do sensory receptors respond to stimuli?

By altering DNA expression and protein synthesis

By releasing neurotransmitters and hormones

By generating receptor potentials and action potentials

By increasing blood flow and oxygen consumption

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Verified step by step guidance

Understand the role of sensory receptors: Sensory receptors are specialized cells or nerve endings that respond to changes in the environment, known as stimuli. They are crucial for converting external stimuli into electrical signals that the nervous system can interpret.

Identify the types of potentials involved: Sensory receptors respond to stimuli by generating electrical changes in the form of receptor potentials and action potentials. Receptor potentials are graded potentials that occur in response to a stimulus, while action potentials are all-or-nothing signals that propagate along neurons.

Differentiate between receptor potentials and action potentials: Receptor potentials are local changes in membrane potential that occur at the site of the sensory receptor. If the receptor potential is strong enough, it can trigger an action potential, which is a rapid and uniform electrical signal that travels along the axon of a neuron.

Explore the process of transduction: Transduction is the process by which sensory receptors convert a stimulus into an electrical signal. This involves the opening or closing of ion channels in the receptor cell membrane, leading to changes in membrane potential.

Consider the physiological significance: The generation of receptor potentials and action potentials allows the nervous system to detect and respond to various stimuli, enabling organisms to perceive their environment and react appropriately.