Adjacent counties. 1  Angelina County (northeast) 2  Polk County (southeast) 3  San Jacinto County (south) 4  Walker County (southwest) 5  Houston County (northwest)
This lesson will cover the three main layers of your skin, which includes the epidermis, dermis, and subcutis. In addition, we'll learn about other skin cells and tissue, such as adipose tissue, keratinocytes, melanocytes, and Merkel's cells. UExcel Anatomy & Physiology: Study Guide & Test Prep / Science Courses.
There are three main types of skin cancer: basal-cell skin cancer (basal-cell carcinoma) (BCC), squamous-cell skin cancer (squamous-cell carcinoma) (SCC) and malignant melanoma. Basal-cell carcinomas are present on sun-exposed areas of the skin, especially the face. They rarely metastasize and rarely cause death.