Subcutaneous Layer Chapter 6
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
