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

1. Introduction to Anatomy & Physiology

Feedback Loops: Positive Feedback

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Feedback Loops: Positive Feedback

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Multiple Choice

Which type of neuronal organization is most commonly associated with positive feedback loops in neural circuits?

Parallel after-discharge circuits

Diverging circuits

Converging circuits

Reverberating (or oscillating) circuits

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Verified step by step guidance

Step 1: Understand the concept of neuronal organization and neural circuits. Neural circuits are groups of interconnected neurons that process specific types of information. Different types of circuits have distinct patterns of connectivity and functionality.

Step 2: Review the characteristics of the given circuit types: Parallel after-discharge circuits involve multiple pathways converging on a single output neuron, diverging circuits spread signals to multiple neurons, and converging circuits funnel signals from multiple neurons to a single neuron.

Step 3: Focus on the concept of positive feedback loops. Positive feedback loops occur when the output of a system enhances or amplifies the original signal, creating a self-sustaining or oscillating effect.

Step 4: Learn about reverberating (or oscillating) circuits. These circuits are characterized by a feedback loop where neurons in the circuit re-stimulate themselves, maintaining the signal for a prolonged period. This is the type of neuronal organization most commonly associated with positive feedback loops.

Step 5: Relate the function of reverberating circuits to real-life examples, such as rhythmic activities like breathing or walking, where sustained neural activity is required.