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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 Heart2h 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

2. Cell Chemistry & Cell Components

Atoms- Smallest Unit of Matter

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Atoms- Smallest Unit of Matter

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Multiple Choice

What are the four most abundant elements found in living systems?

Hydrogen, oxygen, calcium, and nitrogen

Nitrogen, carbon, sulfur, and oxygen

Hydrogen, oxygen, nitrogen, and carbon dioxide

Hydrogen, oxygen, nitrogen, and carbon

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Verified step by step guidance

Begin by understanding that living systems are primarily composed of elements that are essential for life processes.

Recognize that the most abundant elements in living organisms are those that form the basic building blocks of biological molecules.

Identify the four most abundant elements: Hydrogen (H), Oxygen (O), Nitrogen (N), and Carbon (C). These elements are crucial for forming water, proteins, nucleic acids, and carbohydrates.

Consider the roles of these elements: Hydrogen and Oxygen are key components of water, Nitrogen is essential for amino acids and nucleic acids, and Carbon is the backbone of organic molecules.

Review the options provided and match them with the identified elements: Hydrogen, Oxygen, Nitrogen, and Carbon are the correct answer, as they are the most abundant in living systems.