education anatomy and physiology of human scalp show of hair folticles under the microscopic.

adult alopecia anagen anatomy arrector asian background bald baldness beauty biology biopsy cell connective dermal dermis doctor education epidermis epithelium follicle follicles folticles gland glands hair head health healthy histology human infection keeps laboratory layer loss medical medicine melanin melanocytes micrograph microscope microscopic microscopy muscle papilla physiology research root scalp science sebaceous section sheath show shows skin style texture tissue treatment