An oocyte in a mature follicle. During the menstral cycle in females the ovary produces oocytes, which develop in follicles. As the follicle matures it increases in size, different cell types are recr...

Light micrograph showing a cross section through a hair follicle. The hair shaft is made up of hard dead protein called keratin, which is observed in the center. This is surrounded by skin cells that ...

Light micrograph of elastic cartilage of the ear. This type of cartilage is made from a protein called elastin and is formed from a network of elastic fibers and collagen. The fibers form bundles whic...

Light micrograph of elastic cartilage of the ear. This is a type of cartilage (connective tissue) that is present in the outer ear. It contains a network of collagen and elastin fibers, which gives it...