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 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

5. Integumentary System

The Epidermis: Cells

Anatomy & Physiology

5. Integumentary System

The Epidermis: Cells

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

Imagine you're a doctor, and a patient comes to you with a rare medical condition. It seems that their epidermal cells are not producing keratin. Which of the following symptoms are they most likely to experience?

They will have reduced sensitivity to touch.

They're much more prone to sunburn.

Their skin will tear easily upon exposure to mechanical stress.

Their skin will harden significantly.

Previous problemNext problem

Verified step by step guidance

Understand the role of keratin in the epidermis: Keratin is a key structural protein in the epidermal cells that provides strength and resilience to the skin. It helps protect the skin from mechanical stress and damage.

Consider the symptoms related to keratin deficiency: Without keratin, the skin loses its protective barrier, making it more susceptible to tearing and damage when exposed to mechanical stress.

Evaluate the options given: Reduced sensitivity to touch is not directly related to keratin production. Increased susceptibility to sunburn is more related to melanin deficiency. Hardening of the skin is contrary to the expected symptom of keratin deficiency.

Identify the most likely symptom: Given the role of keratin, the skin tearing easily upon exposure to mechanical stress is the most plausible symptom of keratin deficiency.

Conclude the analysis: The absence of keratin compromises the skin's integrity, leading to increased vulnerability to physical damage, which aligns with the symptom of skin tearing easily.