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

5. Integumentary System

Introduction to the Integumentary System

Anatomy & Physiology

5. Integumentary System

Introduction to the Integumentary System

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following is NOT a primary function of the skin?

Synthesis of vitamin D

Production of red blood cells

Regulation of body temperature

Protection against pathogens

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by identifying the primary functions of the skin. The skin is the largest organ of the body and plays several critical roles, including protection, regulation of body temperature, and synthesis of vitamin D.

Step 2: Understand the synthesis of vitamin D. The skin contains cells that produce vitamin D when exposed to ultraviolet (UV) light from the sun. This is a well-documented function of the skin.

Step 3: Examine the regulation of body temperature. The skin helps regulate body temperature through mechanisms such as sweating and vasodilation (widening of blood vessels) or vasoconstriction (narrowing of blood vessels). This is another primary function of the skin.

Step 4: Consider the protection against pathogens. The skin acts as a physical barrier, preventing harmful microorganisms from entering the body. It also contains immune cells that help fight infections, making this a key function of the skin.

Step 5: Evaluate the production of red blood cells. Red blood cells are produced in the bone marrow, not the skin. Therefore, this is NOT a primary function of the skin, making it the correct answer to the question.