What protects a human being from external danger? A car 's seat belt? A helmet? Or our very own organ known as the skin? The skin is one of the most amazing organs in the human body. Skin is made up of specific cells and tissues to act as the boundary between you, me and the world. However, there are some factors that we have to pay attention to regarding our skins. The physiology of Skin will give an in dept explanation and description of its structure, functions, and diseases. The skin is the largest organ in the integumentary system with an area estimation of 20 square feet. It forms a barrier that prevents harmful microorganism and chemicals from entering the body. Other important functions are insulation, temperature regulation, sensory…
Skin A third-degree skin burn extends through the entire epidermis, dermis and hypodermis, but leaves the underlying muscle and bone tissue in a functional state. Skin is made up of three layers: the epidermis, dermis and hypodermis. The epidermis is ectodermal in origin. It is relatively void of ECM except for the basal membrane and has a distinctive keratinized layer produced by keratinocytes. Other artifacts of the epidermis include melanocytes, hair follicles, sebaceous glands, and sweat…
1.1 Background Our skin comprised of two main parts – epidermis and dermis. Epidermis is the superficial and thinner portion which serves to protect the skin and underlying tissues from abrasions, heat, microbes and chemicals. The deeper and thicker connective tissue portion called as dermis hosts several accessory structures of the skin like hair follicles, oil (sebaceous) glands and sweat (sudoriferous) glands. Sebaceous glands secrete greasy substances called sebum that will moistens the…
Epidermis is the tough outermost layer of the skin, and is made up of the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. It is mainly comprised of the protein keratin, squamous epithelial cells and melanin. The epidermis acts as a waterproof barrier and the melanin absorbs ultra violet light to prevent burns, inflammation, and swelling of the skin. Dermis is the lower layer of the skin that contains collagen, nerve fibers, lymph vessels, and blood…
integumentary system is superior or external to the body. The organs that make up this system is the skin, glands, nails, hair, and sense receptors. In addition, the skeletal frame is superficial to the cutaneous membrane in the human body. • Key Anatomical features- The skin, nails, hair, and glands. • The skin- The cutaneous membrane is the toughest organ that the human body has, and it has three coating layers. One is the epidermis, the next is the dermis, and the last layer is the…
System which is any medical condition that has to do with the skin, nails and hair. Eczema is one of the most common skin problems besides Acne. The area of the body that is being worked on in Special Effects is Eczema on forearm, fold of the arm and the hands as it is the most common places to have it and irritable. Also…
Functions of the skin: There are eight main functions associated with the skin. These are as follows... 1. Secretion – the skin secretes sebum from the sebaceous glands. This fatty substance lubricates the hair shafts and when combined with perspiration on the surface of the skin, it creates a natural moisturiser which acts as a protective barrier against bacteria. 2. Heat regulation – body temperature is maintained in healthy humans at 37oC (98.6oF). organs involved in heat production are…
The integumentary system is comprised of the skin’s two layers, the dermis and epidermis, as well as hair, nails, glands, and nerves. Underlying the skin is the subcutaneous layer, or hypodermis, this layer is not a part of the integumentary system but is vital to its function. Made up of a layer of loose connective tissue the hypodermis serves to connect the skin to underlying muscle and bone (142). The hypodermis also assists the overlying skin by supplying it with blood vessels and nerves…
The epidermis is the top most layer of the skin. The type of epithelia found here is keratinized stratified squamous epithelium. This layer consists of 4 layers of think skin or 5 layers of hard skin and is avascular which means there are not blood vessels in this layer. On the epidermis are epidermal ridges that allow it to lock with the dermis. The cells within the epidermis are keratinocytes that produce keratin and are the most numerous; melanocytes that are in the deepest layer of epidermis…
comprehension of anatomy beyond the barrier of human skin. Leonardo da Vinci along with many other artists used their fascination with anatomy and human structure to help shape the figures in their own art. Artists were often commissioned by physicians to create detailed drawings of the dissections. These diagrams were used as illustrations in the volumes of books being published, thereby…