It is divided into three layers. The outer layer is the epidermis. The dermis is in the middle and fat forms the innermost layer. Blood vessels, nerves, hair follicles, oil glands and sweat glands are located in the dermis. Skin is a waterproof, flexible, but tough protective covering for your body.
Provide physical protection Control permeability Provide sensation Produce specialized secretions There are various specialized types of epithelia. They can be sorted by cell shape and the number of cells between the basement membrane and the exposed surface of the epithelium. The three basic shapes of epithelial are squamous, cuboidal, and columnar. If the basement membrane is only covered by one layer of cells it is called a simple epithelium. If the basement membrane is cover by several layers of cells it is called stratified epithelium.
Connective tissue proper has two subclasses, loose connective tissue and dense connective tissues. Loose connective tissue is made up or three different types, areolar, adipose and reticular. Dense connective tissue is made up of three different types as well, dense regular, dense irregular and elastic. The functions of areolar connective tissue include: supporting and binding to other tissues, holding body fluids, defending against infection and storing nutrients as fats. This specific tissues has an arrangement made up of loose fibers.
Tissues and Tattoos The four types of tissue are epithelia, connective tissue, muscle tissue and neural tissue. They are all different but all serve a general purpose to cover, fill and protect what is underneath. Epithelia cover exposed surfaces, line internal passageways, chambers and produce glandular secretions. Connective tissues are responsible for filling internal spaces, provide structural support and store energy. Muscle tissue contract to produce active movement.
Understand the need for tissue viability risk assessment. 1.1…Describe the anatomy and physiology of healthy skin The skin is an outside covering for the human body. It is an organ just like the heart, lung and liver. It provides layer of protection and plays a vital role in maintaining body temperature and by making you aware of external stimuli through the sense of touch. The skin has two layers, the epidermis and the dermis, although not part of the skin, the hypodermis lies beneath the dermis.
The renal capsule is itself surrounded by a mass of fatty tissue that also helps to protect the kidney by damage by cushioning it in cases of impact or sudden movement. Renal cortex: The renal cortex is the outer part of the kidney and has a reddish colour (shown as very pale brown above). It has a smooth texture and is the location of the Bowman's Capsules and the glomeruli, in addition to the proximal and distal convoluted tubules and their associated blood supplies (these structures are part of the k idney nephrons - described in further detail on the page about k idney nephrons). Renal medulla: The renal medulla is the inner part of the kidney. "Medulla" means "inner portion".
Epithelium is an avascular tissue and has no integral (direct) blood supply. FUNCTIONS OF EPITHELIUM: Owing to the strategic location of epithelium at the border between the internal and external environments, the functions of epithelium are many and varied, but can be conveniently divided into two major categories: protective or metabolic. Protective functions of epithelium include protection against: * mechanical damage * loss of fluids (desiccation) - waterproofing * invasion of foreign bodies ( e.g. skin) Metabolic functions of epithelium include: * Exchange of metabolites, typically described as ion-transport. All the substances entering or leaving the body must pass through epithelium and are under its control.
Junctions bind cells together. Some kinds of junctions prevent the passage of molecules between cells. Other kinds of junctions allow molecules to pass from one cell to another. Epithelial Tissue Epithelial tissue covers external surfaces and internal cavities and organs. Glands are also composed of epithelial tissue.
Compare and contrast the functions of each tissue type. Why do some areas of our body have stratified squamous epithelium and other areas have simple squamous epithelium? Epithelial tissues - It protects us, and it absorbs with the stomach and intestinal lining Connective tissues - Support, surround, connect other tissues, Protect organs, Transport fluids and dissolved materials Muscle tissues - Responsible for body movement, Moves blood, and food waste through body’s organs, Responsible for digestion. There are three types smooth, skeletal and cardiac muscle tissues. Nervous tissues - Conducts impulses organs from neurons.
Tissues to tattoos Amanda Quade The reason that some parts of our bodies have simple squamous epithelium is that it is used as a filtration device in our body. The kidneys have simple squamous epithelium and so do our lungs. (Thompson, 2013) The reason that some parts of our bodies have stratified squamous epithelium is that it is water resistant. It serves as a protectant. In one area of the body, it is used to line the esophagus to protect it from stomach acid.