Informative Speech On Hair Evidence

My name is Jaclyn and I am here to talk about hair components and how they are examined. I will go step by step to insure that everyone knows what makes up hair, how a hair sample is analyzed and why the crime scene hair evidence is a match to the suspect here today. I will be talking about certain terms that are in the diagram above such as the shaft, follicle, root, bulb, cuticle, cortex and medulla. . The bulb is at the base of the hair and includes different layers of cells that extend through the hair follicle. The hair follicle is the structure that hair grows out of. The hair root is the part of the hair below the surface of the skin. The hair shaft is the visible part of the hair that is seen through the skin. The hair shaft