Smooth linings are important here because any irregularity in the lining could cause a blood clot. Generally, a stratified squamous epithelium is located where mechanical stresses are severe. The lining of the mouth, esophagus, and surface of the skin are protected by this type of epithelium. A simple cuboidal epithelium occurs where secretion or absorption occurs. An example of this type of epithelium is the lining of kidney tubules.
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.
Muscle tissue contract to produce active movement. Neural tissues conduct electrical impulses and carries information. The protected regions of our body for example our kidney tubes, the lining of the ventral body cavities and the lining of blood vessels are called simple squamous epithelium, they protect regions in which absorption takes place or where a slippery surface reduces friction. Stratified squamous epithelium protects when there are severe mechanical stresses the lining of the mouth and esophagus are prime examples of the epithelium. I believe that if the cutaneous membrane was damaged it would heal in time after all it is our skin and we know that in most people it heals with the help of red blood cells.
The body’s tissues depend on nourishment from the blood in order to function properly and survive. Blood circulates to all of a person’s body tissues through a network of blood vessels and organs known as the circulatory system. An easy way to recognize what part of your body is the circulatory system is by realizing that a person’s blood is entirely contained in the circulatory system. This includes the various vessels, veins, arteries, and organs such as the lungs and heart. Like many already know, blood does not move through the circulatory system by itself.
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".
(Thompson, 2013) • Connective membrane: some joints are lined by membranes made of connective tissue (Thompson, 2013) • Mucus membrane: Lines the body’s surfaces that are opened to the exterior. Examples would be the respiratory, digestive, urinary, and reproductive tracts. (Thompson, 2013) Without mucus membranes, we would be introduced to a lot of outside contaminants. We would have a lot harder time breathing without mucus. We would also be more prone to infection in our urinary tract and other areas of our bodies.
SKIN: The skin is an ever-changing organ that contains many specialized cells and structures. The skin functions as a protective barrier that interfaces with a sometimes-hostile environment. It is also very involved in maintaining the proper temperature for the body to function well. It gathers sensory information from the environment, and plays an active role in the immune system protecting us from disease. Understanding how the skin can function in these many ways starts with understanding the structure of the 3 layers of skin - the epidermis, dermis, and subcutaneous tissue.
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.
If there is an accumulation of fluid in an area the swelling will result in causing the anchoring filament to be pulled which then opens the cells of the lymphatic capillaries wider to enable them to absorb the excess fluid more rapidly. Lymphatic capillary: The capillaries form lymphatic vessels, these lymphatic’s are larger than the capillaries and open out into lymphatic nodes. The fluid, lymph, a clear fluid containing electrolytes, proteins and lymphocytes are helped along by skeletal muscle contractions and also by respiratory movements. The lymphatic system has a one way valve to prevent