Chapter 5: Integument 1. What are the basic functions of the skin? 2. What are t

Question

Chapter 5: Integument 1. What are the basic functions of the skin? 2. What are the different layers of the skin? 3. What are the layers of the epidermis? 4. What are the different structures found within each layer? Tissue types? 5. What is the hypodermis? 6. What are the functions of each layer of the skin? 7. What are the different glands associated with the skin? Functions? Specific disorders? 8. Understand the different homeostatic imbalances of the skin discussed in class and the t 9. What are the different types of skin cancer? How do they differ? How dangerous is each 10. How are hairs formed? 11. Know the basic anatomy of a hair and hair follicle 12. Know the basic anatomy of a nail 13. What is keratin? 14. What are the different types of cells found in skin tissues Functions?

Explanation / Answer

Q1. Answer) Basic functions of skin are as under:

Protection: The skin forms the cover around the internal tissues and organs to protect them from mechanical injury by bumps and knocks.

Maintenance of body form: The skin is quite firm and successfully resists an external and internal pressure on it thus, maintaining the shape of the body.

Safety aganist sunburn: Melanin of the epidermal cells gives protection aganist the visible ultraviolet rays of the sun. These rays cause sunburn.

   The skin also helps in maintaining water balance, helps in excretion, helps in regulation of body temprature etc.

Q2. ANSWER) Layers of skin are as under:

The skin has three layers Epidermis. Dermis and Subcutaneous tissue or hypodermis.

Q3. ANSWER) The layers of epidrmis are a under:

Stratum Basale, Stratum Corneum, Stratum Granulosum, Stratum Spinosum, and Stratum Lucidum.

Q4. ANSWER) Hypodermis:

Beneath the dermis is a layer of loose connetive tissue. This layer is called the the hypodermis or it is also known as Subcutaneous tissue. It loosely attatches the skin to the muscles inside so that the skin can slide over the muscles. The hypodermis insulates the body aganist the cold and heatand acts as a shock absorber.

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