Subcutaneous Layer Chapter 6

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Normal body temp

98.6 degrees Fahrenheit

Squamous cell carcinoma

begins in spinosum; metastasizes to lymph nodes

Hypothermia

below 95 degrees Fahrenheit

Inflammation

body's response to injury and stress; dilated blood vessels provide injured tissues w/ nutrients & oxygen to aid healing

Subcutaneous Layer

consists of loose connective and adipose tissue that holds skin to underlying organs, contains major blood vessels

Hair follicles

develops from a group of epidermal cells, keratinization occurs as hair shaft grows, genes determine hair color (melanin)

2nd degree burn

epidermis & dermis; blisters, very painful

3rd degree burn

epidermis, dermis, hypodermis (subcutaneous layer)

Adipose Tissue

insulates

Why is proper temp regulation important?

maintains metabolic reactions

Lenula

most active growing region (white half moon shaped)

Basal cell carcinoma

most common type of skin cancer; begins in stratum basale

ABCD rule for detecting skin cancer

Asymmetry Border irregularity Color Diameter

Accessory structures of skin

Hair & Nails

Malignant Melanoma

Most deadly, cancer of melonocytes; metastisizes rapidly to lymph nodes & blood vessels

Nails

Protective covering for fingers and toes, keratinization occurs in nail plate, lack color because there is no pigment

Dialated blood vessels

Skin appears red

Hyperthermia

above 100 degrees Fahrenheit

1st degree burn

affects epidermis; redness and soreness

Cyanosis

skin appears blue due to low oxygen

Constricted blood vessels

skin appears pale


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