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

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

A 19-year-old female is found unconscious by her roommate. Which organ system is primarily responsible for maintaining consciousness?

Nervous system

Digestive system

Muscular system

Integumentary system

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Verified step by step guidance

Step 1: Begin by understanding the concept of consciousness. Consciousness is the state of being awake, aware, and responsive to stimuli. It is primarily regulated by the brain and its associated structures.

Step 2: Identify the organ system responsible for maintaining consciousness. The nervous system, particularly the central nervous system (CNS), plays a key role in processing sensory information, controlling motor responses, and maintaining awareness.

Step 3: Evaluate the other options provided in the question. The digestive system is responsible for nutrient absorption and waste elimination, the muscular system facilitates movement, and the integumentary system protects the body and regulates temperature. None of these systems directly maintain consciousness.

Step 4: Focus on the nervous system's components, such as the brainstem and reticular activating system (RAS), which are critical for regulating wakefulness and alertness.

Step 5: Conclude that the nervous system is the correct answer, as it is the primary organ system responsible for maintaining consciousness through its control of brain functions and sensory processing.