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What is this astonishing organ called the human heart? This organ which is the vital part of our being, without it our body will not function, what especially makes this organ so important that when mentioned in poetry, it warms us, but by mere mention of it by our doctors, alas! We're alarmed. So let's see what makes this organ the HEART of our being.

The heart in anatomy is a hollow muscular organ in the middle of the chest just to the left of the centre that pumps through the body. It's comprised of four chambers, the right and atrium (auricle), the upper part and the right and left ventricle, the lower part. It's weight around 10oz and beat on average of 50 -70 times per minute, 100,000 per day and a roughly 40 million times per year. At average lifetime of about 76years, it will beat for at least 3 billion times. it pumps around 500 gallons of blood every day.

The heart is the body system power house because every organ and tissues in the body needs a continuous supply of blood to function normally, especially the circulatory system, the brain and even the heart itself. If the heart does not pump blood for a few minutes, death will be the result. The heart is made primarily of muscle tissues that rhythmically contracts to pump blood to all parts of the body. This start from when you are born to entire lifetime.

The upper part, i.e. the atria or auricle acts as a collecting reservoir while the lower part, the ventricle contract to pump the blood on. The right side of the heart receives blood through vein coming from all over the body and pump the oxygen-poor blood that it has received to the lungs so that it can pick up oxygen form the air we breathe in, while the left side then collect the oxygen-rich blood from the lung and pumps it to all the tissues and organs in need of oxygen.

There are four valves that prevent blood from flowing back to the heart. They are the pulmonary, aortic, mitral and the tricuspid valves. The heart muscle medically known as myocardium requires a very good supply of oxygen in order to be able to pump blood different organs and tissues of the body. And this blood supply is provided by the coronary arteries and their branches. The heart is surrounded by a tough, double-layered sac known as the pericardium which has an inner layer called the epicardium. The outer layer of the epicardium helps to hold the heart in place and between these two layers is a tiny space filled with fluid them from rubbing against each other when the heart contracts.

The coronary arteries come off the aorta (the largest blood vessel in the body). The right coronary artery is usually smaller and supplies the down side of the heart. The left artery has two main branches called the Circumflex and the anterior descending. These coronary arteries are so special that blood can flow through them into the heart muscles between heart beat i.e. as it relaxes.

The Heartbeat: the right and left halve of the heart contracts in unison to produce a single heartbeat. The two phase of heartbeat are called the systole where the heart chambers contract to move blood and the diastole where the heart chambers are relaxing between a beat. Because of these two phases, the heart is able to pump much blood with each beat.

Knowledge is power, so Learn and Live!

Miracle is an expert researcher on health and fitness matters especially heart health, women and men's health, dieting, environmental health issues, a motivational speaker and a teacher. For more information, visit http://www.heartcares.blogspot.com http://www.dietcares.blogspot.com

It's called a Face Tent. They are normally used for patients who need humidity but won't wear an aerosol mask. It can run on air or oxygen. Usually, there is a large nebulizer attached to the gas source to give the patient lots of humidity. They can be used after surgery, when a patient has a nose issue, facial burns, and there are a couple more reasons that I don't remember at the moment.

Basically, the Face Tent is used when the patient will not tolerate a regular aerosol mask or the face is damaged so that wearing a face mask would not be safe.

Medical technology is that branch of medicine which deals with the technical apparatus associated with the treatment and diagnosis of diseases and medical conditions. Most hospitals and private nursing care facilities have medical equipment which consists of machines and technical devices to detect and monitor any irregularities in a patient's medical conditions. A Biomedical Equipment Technician (BMET) is usually hired by hospital to maintain the medical equipment of medical facilities.

Medical equipment may consist of laboratory instruments and devices to analyze the composition of urine, blood, fasces or semen. Medical monitors may be used to predict a patient's medical state by the measurement of parameters like blood pressure, ECG, EFG as well as gases dissolved in the blood. Diagnostic equipment comprises of medical imaging machines like which are used to help diagnosis of a condition. Such devices include ultrasound, MRI and x-ray machines, and PET and CT scanners. Therapeutic apparatus consists of infusion pumps, medical lasers and LASIK surgery machines. Life support devices are used to sustain the bodily functions of the afflicted in a period of severe medical crisis. These include will consist of apparatus like the following- ventilators, anesthetic machines, heart-lung machines, ECMO, and dialysis machines.

The field of medical equipment is a rapidly advancing one and the frontiers of medical research are steadily expanding to incorporate more and more sophisticated technology. It shows tremendous scope of developing better and improved machines to bolster healthcare and medicine as a science. The X-ray, electrocardiograph, endoscope, ultrasound scan, CT scan and the artificial heart are inventions which have revolutionized medicine quite phenomenally.

Often it is not possible under financial considerations to carry out the long- term treatment of a patient in an official medical facility like a hospital. That is when Home Medical Equipment (HME) comes into play. The patient is taken care of by a family member or any other person not a qualified medical professional in their knowledge of nursing. It is also referred to as Durable Medical Equipment or DME in medical parlance as it is designed to withstand regular and repeated use by the patient or care-giver. Common Home Medical Equipment includes easily visible and recognizable apparatuses and devices like the wheelchair, crutch, diabetic shoes, artificial limb and not so easily visible but essential aids like the nebulizer, nasal cannula, orthosis .Such devices can only be used on a doctor's recommendation and approval and can only be purchased from a doctor's prescription. The purchase should be carried out from a pharmacy in the vicinity to ensure 24-hour access to replacement or new purchases should the need arise in the event of an emergency.

Medical equipment supplies are governed by the field of medical logistics. It comprises of the supply and distribution of pharmaceuticals, surgical apparatus, medicines, medical equipment and other devices to doctors, nurses, technicians and laboratory analysts. Following staff costs, medical supplies are the most expensive area of the health care sector which explains the adoption of supply chain management theories to cut down costs.

Hyperbaric chamber provides 100% oxygen all the time to cells starved by carbon monoxide poisoning - especially brain cells to prevent further damage and possibly death.

What I said is a nice summary of the paramedic's posting.

WORK AREA SAFETY IN INDUSTRIAL PLANTS

To make your work area safe you must know what hazards you can expect to encounter and what to do to control and eliminate them. The information contained here explains the importance of working safely and methods for controlling safety in your work area.

Here we briefly describe many of the hazards frequently encountered in plants like Built-in hazards, Mechanical, Electrical, Chemical and Environmental hazards.

BUILT- IN HAZARDS: Certain features of plant layout and design like location of equipments, stairs, entrance and exits, the layout of floors, platforms, lighting arrangements, heating and ventilation systems are already exist i.e. built-in that you cannot change. These can cause accidents and the best you can do is to recognize and avoid them.

MECHANICAL HAZARDS: In various cases of accidents chances of moving parts of machinery or tools are involved. A worker has to take special care to keep his clothes, body and tools away from moving machinery. When a machine has to be shut down for repairs the machine electrical controls must be locked and warning signs must be posted on the panel like "Danger. Do not start, personnel working".

Working on pipe lines, tubing system will produce exposures to heat and pressure, avoid accident by isolate the system and cool down and de-pressurize it. 

Many plants have hand trucks, forklifts etc for moving material within the designated aisles, if a work is to be done near or traffic paths protect yourself and others by placing signs and barricades to warn traffic or else the result could be serious injury if your ladder is struck by passing vehicle. Do not place the tools and material in such a way that they are not a hazard to traffic by falling in the aisle.

Temporary scaffoldings, platforms are erected while working at heights, on buildings walls, roof and ceilings. These items should have railing and guards to keep workers, tools and materials from sliding and falling off the edge. Place signs below the scaffold to warn the passerby of the falling objects. Make sure a worker is attentive and cautious while working at height, as a slip could have been fatal. Ladders in use for working at height must be secured from both top and bottom and should be at safe angle, steps of ladders should be clear of tools, grease etc. Hanging scaffolding are secured by rope rigging from top and the platform should be level because if the rope at one end breaks or loose the platform can swing down to vertical position rapidly dumping off workers and material. Safety belts and harness should be use to secure yourself while working on heights and roofs.

ENVIRONMENTAL HAZARDS: occasionally worker is required to work in hot conditions near boiler or heaters though such are normally insulated but generally there is some heat in the area. Place an air blower to supply cool air & expel the hot air. Prolong exposure in high temperature work areas can cause heat cramp and heat exhaustion. Severe and rapid stomach or muscle cramps are due to excessive loss of body moisture and salt. Dizziness, weak pulse, lower than normal body temperature, heavy sweating are the signs of Heat exhaustion. Taking Salt tablets and Drink water in moderate amounts are routine preventive measures for both heat cramps and exhaustion.

When working in enclosed areas, follow recommended safety measures. A person should be kept standby at the entrance, wear a safety harness and a lifeline so if you are overcome you can be pulled out. Enclosed space should be vented by air blower of toxic or inflammable fumes. Oxygen content in that space to be checked before entering. Do not wear nylon clothing and use non-sparking tool in an enclosed space to prevent sparking which can cause explosion in case working in a fuel tank. An explosion proof hand lamp should be used in such spaces.

Radiation from X-rays and radioactive material can cause severe damage to the human body. Wear special protective clothing to reduce exposure to the radiation. Radiation area should be clearly marked with radiation signs.

CHEMICAL HAZARDS: This is one of the most treacherous hazard, where chemicals are concerned one should know the properties and hazard of particular chemical involved. Read material safety data provided with it before handling. Wear protective clothes, gloves, fresh air mask and goggles or face shield. Make sure the chemical not to be splashed or spilled.

ELECTRICAL HAZARDS: Almost every job you perform will include exposure to electricity and its dangers. Avoid touching energized or hot wire. Always use equipment & tools, which are grounded and insulated. Do not use frayed, damaged or spliced chords. Avoid moist clothes, shoes, tools and hands. Metal objects and water is good conductor of electricity. Insulate nearby metal objects. Avoid wet surfaces and place insulating mats while working on panels.