Cardiovascular system has three main functions: Transport of nutrients, oxygen and hormones to cells throughout our body and removal of metabolic wastes such as (carbon dioxide and nitrogenous wastes). Protections of the human body by while blood cells, antibodies and complement proteins that circulate in the blood and defend our body against foreign microbes and toxic. Clotting mechanisms are also present that protect the human body from blood loss after injuries. Regulation of body temperature, fluid pH and water content of
Compound Epithelium – this type of epithelial tissue is made to withstand wear and tear. It is composed by several layers of cells which is the reason for the name of the cell. The epithelium may or may not be keratinised which contains a tough, resistant protein called keratin for example skin or unkeratinised which is what the lining of your mouth is made up of. Unstriated muscle – this is the type of muscle which still contains protein filaments but they do not lie in an orderly pattern as with striated muscle. In this type of muscle the fibres are spindle shaped and generally have a central nucleus, and dove-tail into each other.
Besides providing protection to the body the skin has a host of other functions to be performed like regulating body temperature, immune protection, sensations of touch, heat, cold, and pain through the sensory nerve endings, communicating with external openings of numerous other body systems like digestive system, urogenital system, and respiratory system via mucous membranes.The skin is primarily composed of three layers. The skin, which appears to be so thin, is still itself divided into epidermis, dermis, and subcutaneous layer or hypodermis. Each layer has it own function and own importance in maintaining the integrity of skin and thereby the whole body structure. Pressure sores or decubitus ulcers are the result of a constant deficiency of blood to the tissues over a bony area such as a heel which may have been in contact with a bed or a splint over an extended period of time. The surface of the skin can ulcerate which may become infected.
Dermis is mainly connective tissue, is deep to the epidermis, and is vascular * The skin contains collagen (for strength) and elastic (for stretch) fibers. * The skin is thicker on the posterior than the anterior parts of the body; thicker on lateral parts of limbs than medial parts. —Subcutaneous layer (or hypodermis) is deep to dermis, but is not part of skin. It is mainly adipose tissue B. Layers of epidermis (from deepest to superficial) 1. Stratum Basale (= base) a. has stem cells that continuously divide by mitosis
There are a number of cell junctions used by the various tissue types for contact with surrounding cells and the basement membrane, communication and for structural integrity. The contrast of the functions of each tissue is that some are striated and some are unstraited. Ref: http://www.ivy-rose.co.uk/HumanBody/Tissue/Tissue_Muscular-Tissue.php 2.Our body contains four different membranes (physical barriers), each with a specific function. Understanding their different roles and functions, please describe what you think would happen to the body if each was damaged? If each membrane is damaged, the epithelium would not be able to be held up because the lamina propia is what supports the epithelium.
The endocrine system carries chemical messengers to adjust bodily functions. During forms of exercise, the body’s internal environment is altered and placed under a considerable amount of stress. Through homeostatic feedback mechanisms, the body is able to maintain a healthy internal environment and quickly return to normal after exercise ends. These homeostatic mechanisms respond to
Besides oroviding protection to the body, the skin also helps regulate body temperature, helps your immune system, provides sensations of touch, heat, cold and pain throught the sensory nerve endings. The skin is primarily composed of three layers, the epidermis, the dermis and the subcutanious layer/the hyppodermis. Each layernhas its own function and its own role in maintaining the skin integrity. Pressure sores are the result of a constant deficiency of blood flow to the skin tissue. This is more common over a bony area such as a heel, which may have been in contact with a surface for an extended period of time.
ELIZABETH LEDWARD COMPLEMENTARY THERAPIES REFLEXOLOGY Basic theories/effects The theory underlying reflexology is that the organs, nerves, glands, and other parts of the body are connected to reflex areas or reflex points on the hands and feet. These areas are found on the soles of the feet and palms of the hands, as well as on the tops. By stimulating these areas using a compression technique and a form of massage with your thumbs, fingers or hands, you can create a direct response in a related body area. The right foot and hand represent the right side of the body, the left hand and foot represent the left side of the body, and according to “zone therapy” there are 10 different zones in the body. The feet are most commonly worked, because practitioners feel they are normally more responsive to treatment.
Acupuncture involves inserting very fine needles into specific points on the surface of the skin, known as acupoints. Acupoints are located along the body’s pathways. These network channels are often termed meridians and contain various points where the flow of energy can be affected by the very fine acupuncture needles. Acupuncturists may also incorporate heat, pressure, friction, suction, or impulses of electromagnetic energy into their practise to further stimulate the acupoints. Acupuncture works by encouraging the body to heal itself by removing any imbalances or disturbances in the body’s meridians (Gould 2002, pg.
If the blood temperature falls, it stimulates a ‘heat loss’ centre in the brain which sends impulse to the skin, causing vasoconstriction and the cessation of sweating. These changes reduce heat loss from the skin. Temperature regulation The human body is able to regulate its own internal temperature. It is important that we keep out internal temperature between 37 and 38 degrees. This is important as everything in the body has a prime temperature it works at.