It is made of four or five layers of epithelial cells, depending on its location in the body. This quiz has tags. Hair and nails are made up of dead skin cells. In most regions of the body the epidermis has four strata or layers —stratum basale, stratum spinosum, stratum granulosum, and a thin stratum corneum. a layer of the epidermis found only in the thick skin of the fingers, palms, and soles. Actin. It does not have any blood vessels within it (i.e., it is avascular). This layer marks the transition from living to dead tissue; cytoplasm full of lamellated granules and keratohyaline granules; help the outer strata "toughen up" to make it the strongest skin region. Most of the skin can be … Beneath the dermis is the subcutaneous tissue or hypodermis. It has many functions including protection and temperature regulation. Cells in the epidermis divide and move up to replace cells in the layers above, changing as they move from one layer to the next. 5. Did You Know? The stratum basale is also home to melanocytes that produce melanin (the pigment responsible for skin color). Check all that apply. Stratum Basale. Only present in the fingertips, palms, and soles. True. The stem cells are located in the stratum basale and migrate outwards in their differentiation process. Q. B. Stratum Basale. The waterproofing protein that fills the cells in the upper layers of the epidermis. A. Stratum Basale. The deepest layer, attached to the underlying dermis; also known as the "Stratum Germinativum". Tags: Question 15 . Skin that has four layers of cells is referred to as “thin skin.” From deep to superficial, these layers are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. Stratum Spinosum and Granulosum. answer choices . Click card to see definition . Start studying TEAS Test: Science-The Integumentary system. False. The epidermisis composed of keratinized, stratified squamous epithelium. B. Cells divide in the basal layer, and move up through the layers above, changing their appearance as they move from one layer to the next. STRATUM CORNEUM; This is the outermost layer of the epidermis, it is formed by the accumulations of dead cells (keratinocyte) in the outermost epidermis, and these dead cells contained here are eventually shed. It takes around 2-4 weeks for this to happen.This continuous replacement of cells in the epidermal layer of skin is important. The epidermis regenerates in orderly fashion by cell division of keratinocytes in the basal layer , with maturing daughter cells becoming increasingly keratinised as they move to the skin surface. Learn with flashcards, games, and more — for free. epidermis definitions - from layers, to function, and structures. The stratum basale is the deepest layer, while the stratum corneum is the outermost layer of epidermis. The cutaneous membrane is composed of a superficial epithelium, or epidermis, and the underlying dense connective tissue, or dermis. The epidermis is composed of five types of cells:. There are two main types of epidermis: Thin , which is found in places like your eyelids and consists of 4 layers (or strata). The stratum basale (also called the stratum germinativum) is the deepest epidermal layer and attaches the epidermis to the basal lamina, below which lie the layers of the dermis.The cells in the stratum basale bond to the dermis via intertwining collagen fibers, referred to as the basement membrane. Chapter 5 Notes Learn with flashcards, games, and more — for free. Bodytomy takes a closer look at these layers along with their functions. Layers of the epidermis Learn with flashcards, games, and more — for free. Bodytomy takes a closer look at these layers along with their functions. This layer contains … This is an online quiz called Layers of The Epidermis There is a printable worksheet available for download here so you can take the quiz with pen and paper. Thick , which is found in areas that experience a lot of wear and tear (like the heels and soles of your feet). Cells in the epidermis divide and move up to replace cells in the layers above, changing as they move from one layer to the next. The deeper hypodermis is made up of fat and even more connective tissue.   Stratum granulosum: This layer contains more keratinocytes moving toward the surface. The increased keratinization (also called cornification) of the cells in this layer gives it its name. Stratum basale, also known as the basal cell layer, is the innermost layer of the epidermis.This layer contains column-shaped basal cells that are constantly dividing and being pushed toward the surface. There are usually 15 to 30 layers of cells in the stratum corneum. A. layers of epidermis from bottom to top. 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