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Miladys Study Ch 7
Skin Structure and Growth
Question | Answer |
---|---|
Briefly describe healthy skin | Slightly moist, soft and flexible with a texture that ideally is smooth and fine-grained. Surface is slightly acidic, and its immune responses react quickly to organisms that touch or try to enter it |
The outtermost layer of skin and is the thinnest layer of skin, forming the protective covering for the body | Epidermis (aka cuticle) |
What is the Basal Cell Layer also known as | Stratum Germinativum |
Stratum Germinativum is the | deepest layer of the epidermis |
The underlying layer of skin. It is about 25 times thicker than the epidermis. | Dermis |
Papillary Layer | Outter layer of the dermis, contains dermal papillae and melanocytes |
Reticular Layer | Deeper layer of the dermis that supplies the skin with oxygen and nutrients. Contains fat cells, sweat glands, blood vessels, hair follicles, lymph vessels, arrector pili and oil glands |
How is the skin nourished? | Blood supplies nutrients and oxygen to the skin. Nutrients are molecules from food, such as protein, carbs and fats. These nutrients are necessary for cell life, repair and growth. |
What are the 3 types of nerve fibers found in the skin? | Motor Nerve Fibers Sensory Nerve Fibers Secretory Nerve Fibers |
What is collagen? | Fibrous protein that gives the skin form and strength |
Sudoriferous Glands [Sweat] | Regulate the body's temperature and help to eliminate waste products from the body |
Sebaceous Glands [Oil] | Secrete sebum which lubricates the skin and preserves the softness of the hair |
What are the 6 important functions of the skin? | Protection Sensation Heat Regulation Excretion Secretion Absorption |
The medical branch of science that deals with the study of the skin and it's nature, structure, functions, diseases and treatment | Dermatology |