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

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Anatomy & Physiology

1. Introduction to Anatomy & Physiology

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Multiple Choice

Which of the following is the best example of an unconditioned response in a reflex arc?

Sweating in response to heat

Salivation in response to food

Jumping at the sound of a loud noise

Blinking in response to a bright light

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Understand the concept of a reflex arc: A reflex arc is a neural pathway that controls a reflex action. It typically involves a sensory neuron, an interneuron, and a motor neuron, resulting in an automatic response to a stimulus.

Define an unconditioned response: An unconditioned response is an automatic, natural reaction to a stimulus that does not require prior learning or conditioning.

Analyze each option to determine if it is an unconditioned response: Consider whether the response is automatic and does not require prior learning.

Option 1 - Sweating in response to heat: This is an automatic physiological response to regulate body temperature, but it is not typically considered a reflex action in a reflex arc.

Option 2 - Salivation in response to food: This is an automatic response to the presence of food, preparing the body for digestion, and is a classic example of an unconditioned response in a reflex arc.