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

Which statement is best supported by the observable differences in the structure of humerus bones from various species?

Humerus bones are only found in humans and not in other vertebrates.

The structure of the humerus bone reflects adaptations to different types of movement and function.

The humerus bone is not influenced by evolutionary pressures.

All humerus bones have identical shapes regardless of the organism's lifestyle.

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Verified step by step guidance

Understand the role of the humerus bone in vertebrates: The humerus is a long bone located in the upper limb of tetrapods, connecting the shoulder to the elbow. It plays a critical role in movement and function, influenced by the organism's lifestyle and environment.

Analyze the observable differences in humerus structure across species: Differences in the shape, size, and features of the humerus bone are adaptations to specific types of movement, such as flying in birds, swimming in aquatic animals, or running in terrestrial mammals.

Consider evolutionary pressures: Evolutionary pressures, such as the need for efficient locomotion or specialized functions, drive the structural adaptations of the humerus bone in different species.

Evaluate the incorrect statements: The humerus is not exclusive to humans; it is found in all tetrapods. Additionally, humerus bones do not have identical shapes across species, as they are influenced by evolutionary pressures and adapted to the organism's lifestyle.

Conclude with the correct statement: The structure of the humerus bone reflects adaptations to different types of movement and function, supporting the idea that evolutionary pressures shape anatomical structures to meet the demands of an organism's environment and lifestyle.