Papillary Layer: Each of these bumps or areas of the dermis that protrude into the epidermis is called a epiderma ridges What is the function of the dermal papilla? Reticular Layer: "Reticular" means network and can refer to many structures, not just reticular connective tissue. This layer of the dermis is made of mostly dense irregular connective tissue. Why? Draw what you see. Label the collagen fibers, fibroblast nuclei, and any hair or glands that you see. HYPODERMIS: Fibroblast: Draw what you see. Label the cells and their nuclei. Collagen Dense regular connective tissue Dense irregular connective tissue You will see a tissue that looks like soap bubbles. Each "bubble" is a single cell with one nucleus pushed to the very edge of the bubble. The rest of the cell is filled with fat or adipose, giving the tissue its name: loose connective tissue. You also find this tissue in areas of the body where fat is stored (yellow bone marrow, greater omentum, etc.) What is the function of this tissue in this layer of the skin? fat droplet nucleus plasma membrane

EPIDERMAL LAYERS Label the following: Stratum corneum * Stratum lucidum * Stratum granulosum * Stratum spinosum * Stratum basale * Dermal papilla * Sweat duct * Sweat pore * Stratified squamous epithelium * Dendritic cell * Melanocyte 1 3 6. 11 8 9. 10 2 4 License: Anatomy

How does melanin get into the skin?     melanocytes are found in the most superficial layer of skin and are full of melanin giving pigmentation     keratinocytes absorb surrounding melanocytes as they rise up from the basal layer to the surface     melanocytes form in the basal membrane and as they ascend to the surface they change into keratinocytes while maintaining the original amount of melanin they produced     melanocytes in the basal layer produce melanin and inject it into surrounding keratinocytes via the dendrites

The integument contains all 4 tissue types, which are arranged into several layers. Use the figure below to label these layers and their structures. You may use answers more than once. A - F G H. Subcutaneous K layer V [ Choose ] A Dermis B Sebaceous gland Epidermis C Hair follicle Nerves Hair E Stratum corneum Sweat gland F Stratum basale Adipocytes Arrector pilli H TChoose ] [ Choose ] [ Choose ] K [ Choose ] [ Choose ]