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

During your primary assessment of a 19-year-old unconscious male, which organ system should be assessed first to ensure immediate survival?

Digestive system

Reproductive system

Respiratory system

Integumentary system

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Verified step by step guidance

Start by understanding the primary goal of a primary assessment: to identify and address any life-threatening conditions that could compromise immediate survival.

Recall that the respiratory system is responsible for oxygen intake and carbon dioxide removal, which are critical for cellular function and survival. Without oxygen, brain and organ function cease within minutes.

Consider the ABCs of emergency care: Airway, Breathing, and Circulation. The respiratory system is directly involved in the first two components (Airway and Breathing), making it the top priority in an unconscious patient.

Evaluate why the other systems listed (digestive, reproductive, integumentary) are not immediately critical for survival. For example, while the integumentary system protects against infection, it does not directly impact oxygen delivery to tissues in the short term.

Conclude that the respiratory system must be assessed first to ensure the airway is open and the patient is breathing adequately, as this is essential for immediate survival.