layers of the skin
what are the three main layers of the skin
epidermis, dermis, hypodermis
list three major functions of the skin
excretion, protection, and temperature regulation
what are the three main types of skin appendages
hair, nails, and sweat glands
which layer of the epidermis is responsible for continuous cell division
stratum basale
explain how the skin can regulate body temperature
sweating and vasodilation
name two different glands
eccrine glands and apocrine glands
where is thick skin found on the epidermis
palms of the hands and soles of the feet
how does the skin recieve vitamin D
UVB radiation from sunlight causes a conversion of 7-dehydrocholesterol in the epidermis of the skin
describe three parts of a hair follicle
hair bulb, dermal papilla, sebaceous gland