Respiratory system

ASTHMA Asthma is a condition that influences a relaxing. Inside the lungs is soaring direction Star called breathing tubes or bronchial tubes. With asthma, a portion of the little road that can fabulous and limited, making it harder for air to get past. We should discuss relaxing. When you take in, air enters your nose or mouth, then goes into the windpipe, likewise called the trachea from that point, the air goes into the lungs through the breathing tubes. These flying leads gaps like…

The Pleural Cavity is a very important cavity in the body, simply because it consists of how a person breathes. It includes an intrapulmonary pressure, atmospheric pressure and airflow within the lungs. “Intrapulmonary pressure is the pressure within the lungs, atmospheric pressure is the pressure used in all directions at any given point by the weight of the atmosphere and air flow is simply the motion of air. Intrapulmonary pressure and atmospheric pressure are usually measured in units of…

Asthma is a disease that affects your lungs. Your air passages inflame and it causes a temporary narrowing of the airways that carry oxygen to your lungs. An asthma attack is a sudden worsening of asthma symptoms caused by the tightening of muscles around your airways. During the asthma attack, the lining of the airways also becomes swollen or inflamed and thicker mucus is produced. It can be triggered by allergens, exercise, smoke, pollution, or airway infections. If your asthma is severe it…

I learned from Asthma and Allergies: The Science Inside is that if you weren’t exposed to enough bacteria and viruses as a child your immune system is further weakened and that could be why someone has developed asthma. 80% of people in Ireland who has asthma also have hay fever (The Asthma Society of Ireland). Having allergies means that your immune system overreacts to allergens that wouldn’t cause symptoms in most people. Asthma and Allergens are caused by an allergic reaction and are related…

the hyaloid canal carries lymph to help change the volume of the lens. When the lens expands, the hyaloid canal compresses, so that the eye’s internal pressure and volume remain constant (Merriam-Webster). Optic nerve: A part of the central nervous system, the optic nerve connects the eye to the brain, carrying electrical signals formed by the retina to be interpreted as images (Medicine Net). Central retinal vein: The central retinal vein is where blood circulating in the eye is returned to…

1. Anatomy of the trachea and bronchi. The trachea (Fig.1) is a cartilaginous and membranous tube, extending from the lower part of the larynx, on a level with the sixth cervical vertebra, to the upper border of the fifth thoracic vertebra, where it divides into two main bronchi, one for each lung. The trachea is nearly but not quite cylindrical, being flattened posteriorly; it measures about 11 cm. in length; its diameter, from side to side, is from 2 to 2.5 cm., being always greater in…

Measurement of diffusing capacity (DLCO) One of the most clinically lung function test is diffusing capacity of the lung for carbon monoxide (DLCO). In addition it's known as the transfer factor of the lung for CO (TLCO). This test measures the capability of the lungs to transmit gas from inhaled air to the pulmonary capillaries in the red blood cells and to determine the efficiency of the lungs to exchange gases. The indication of using this test is to recognize the cause of hypoxemia and…

I am writing today about a noncommunicable disease that affects 26 million Americans. The mortality rate of this disease is approximately 4,000 per year and causes almost 14 million visits to the Doctors office and 1.75 million emergency room visits. This disease is called asthma, also known to many as reactive airway disease. The reason I chose this particular illness is because of the impact it has had on my brother’s life since he was diagnosed at the age of 3. Asthma is a chronic…

Bronchitis is an inflammation of the bronchial tubes, or bronchi, that bring air into the lungs. Inflammation is a chemical reaction in the body that produces redness, swelling, and pain. When the cells lining the bronchi are irritated, the tiny hairs (cilia) that normally trap and eliminate things from the outside stop working. Formation of material associated with irritation swelling also increases; causing the passages to become clogged. The same viruses that cause colds, often cause acute…

Respiratory Syncytial Virus – RSV Anatomical & Physiological Influences Causes RSV more frequently effects infants but can affect adults. Infants who have had RSV have an increase frequency of wheezing. Air enters the respiratory tract through the nose or mouth and then either enters the nasopharynx, or oropharynx respectively. Continuing through the laryngopharynx to trachea, which divides at the carina to form the left and right main bronchus. In each lung the bronchus divide into the…