Epidermis

Chapter 1 ELO’s Describe the basic functions of living organisms. A. Responsiveness – organisms respond to changes in their immediate environment (long term changes is adaptability) B. Growth – over a lifetime, organisms grow larger through an increase in size or number of cells. Differentiation is when cells have specialized functions C. Reproduction – Organisms reproduce, creating subsequent generations of similar organisms D. Movement – Organisms are capable of movement

this layer is the outer most layers; it is formed from numerous layers of compressed scale- like, overlapping cells. What makes up the surface of the skin is corneocytes, which are commonly called ‘dead skin cells’. Keratinocytes are found in the epidermis they travel up through the layer where they are formed into corneocytes. The stratum corneum layer protects against lights, chemicals, water loss, heat and bacteria. Stratum Lucidum is an additional layer of the skin, found only in the palms of

The Integumentary System plays an extensive role in our everyday lives. It consists of hair, skin, nails, and glands. Therefore, it is one of the largest organ systems that can be seen and in the human body. All these structures help protect the inner portion of the body. But the most important structure overall is the skin. The skin is used as a waterproof layer protecting everything on the inside of the body. The skin regulates the temperature of the body and the moisture. It also works as

only the largest organ on the human body, but it is also the most prominent organ that is in the integumentary system. It works in many aspects of protecting the body underneath against the outside environment. The skin has three main layers; the epidermis, dermis and the hypodermis. Each layer have different physical attributes that aid the skin in its job to protect the organism. Purpose: This lab was done to help me understand the layers of the skin and their varying appearances and thicknesses

protects us from microbes and the elements, it also helps regulate body temperature, and permits the sensations of touch, heat, and cold. There are three layers of skin, this includes the epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone, the dermis, beneath the epidermis, contains tough connective tissue, which gives the skin flexibility and strength, hair follicles, produce the various types of hair found throughout our body, sweat glands, these produce

of three layers; epidermis, dermis and hypodermis, the skin plays key functional roles in the control of temperature within the body, production of essential vitamins, housing of sensory receptors, secretion of waste products and protection of the body (Kerr, 2010). The epidermis is the most superficial layer of the skin, composed of keratinized stratified squamous epithelium, providing a waterproofed protective layer over the epidermis (Moore, Dalley, Agur 2010). The epidermis itself separates

system The integumentary system covers the whole body and is made up of several layers.The integumentary system consists of the skin and its derivatives including hair, glands, nails and specialised receptors  Outer skin  Superficial fascia  Epidermis  Dermis  Hair  Sweat gland  Stratum corneum  Hair follicle  Sebaceous gland  Adipose tisssue  Pacinian corpuscles  smooth muscle  Nerve 1.2 Function and role of the skin The human skin its self is an organ. The skin is in fact the largest

namely the epidermis, dermis and sub-dermis or hypodermis. These layers contain different specialized structures, as can be seen on the diagram on the cover page, which perform functions that are essential for our survival. The skin separates the internal body from the surrounding environment and thus it protects the body against water loss, radiation, toxic chemicals and infections in the surrounding environment. One of the structures that is further discussed are melanocytes in the epidermis and melanin

The skin is made up of two layers: the epidermis and the dermis. The epidermis consists of keratinocytes, melanocytes, dendritic cells, and tactile cells (Marieb & Hoehn 153). The epidermis consists of four to five layers, including stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum. The deepest layer, stratum basale lies on top of the dermis and contains mitotic cells that help repair the skin when it is damaged (Marieb & Koehn 153). Stratum spinosum

Woonyen Wong Professor Bender Biology 23 october 20 ,2016 Introduction Staphylococcus epidermis is one of the commonly known species in the Staphylococcus genus. It can be found in the normal flora of human skin or on the mucous membrane of warm-blooded mammals. It colonized mainly at the nostrils, armpits, head, and human epithelia. Staphylococcus epidermis is a salt-loving microbe. This species can live in a harsh condition, they can live in an environment that has 10 to 15 percent of salt