Integumentary System

[object Object],[object Object],www.freelivedoctor.com Integumentary System

Made up of all 4 tissue types . . . .?? www.freelivedoctor.com

Two Major Subdivisions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Epidermis ,[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Stratum Germinativum ,[object Object],[object Object],[object Object],[object Object],Stratum germinativum = stratum basale Innermost, single layer www.freelivedoctor.com

Stratum Spinosum ,[object Object],[object Object],[object Object],Stratum spinosum Several cells thick www.freelivedoctor.com

Stratum Granulosum ,[object Object],[object Object],[object Object],Stratum granulosum www.freelivedoctor.com

Stratum Lucidum ,[object Object],[object Object],Stratum lucidum www.freelivedoctor.com

Stratum Corneum ,[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com 15-30 layers (much thicker in thick skin)

Thin vs. Thick Skin ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com Refers to epidermis

Contour of skin surface follows pattern of epidermal ridges. Advantage ?? www.freelivedoctor.com Unique fingerprints c c

Skin Color ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Melanocytes Number of melanocytes same in all people, production levels differ ! www.freelivedoctor.com Function ?

Dermis ,[object Object],[object Object],www.freelivedoctor.com

Papillary Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com M 

Reticular Layer ,[object Object],[object Object],[object Object],www.freelivedoctor.com Pacinian corpuscule (deep pressure)

Hypodermis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Accessory Structures: Hair Follicles & Hair ,[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Skin Glands: 1) Sebaceous Glands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

2) Apocrine Sweat Glands ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

3) Merocrine Sweat Glands ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

For purpose of completion: ,[object Object],[object Object],[object Object],www.freelivedoctor.com

The End Nails not covered. Skin and Aging Process www.freelivedoctor.com

Integumentary System

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