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.
Skin cancers are of three major types: basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma. 1  The vast majority of skin cancers are BCCs or SCCs. While malignant, these are unlikely to spread to other parts of the body. 2  A small but significant number of skin cancers are malignant melanomas.