Take a Deep Breath..

..ermmmm jom belajar sesuatu tentang peparu kita..boleh?? kenapa saya bicara tentang peparu hari ini?? kerna saya rasa saya mengalami masalah di situ..masalah lanjut akan saya ketahui esok apabila saya bertemu dgn mereka2 yg pakar tentang peparu ini..:-)..harap2nya ianya sihat sejahtera..apa yg saya alami sekarang mungkin hanya sekadar 'gurau senda' peparu ini kepada saya..ataupun kerna 'perubahan cuaca'..mungkin saya tak sesuai dengan iklim Malaysia..hak hak..sorry if saya seperti poyo di situ..hehe..sedari saya tidak sihat hampir 1 bulan yg lalu..ingat ka tentang kejap2 demam, flu & batuk itu..& yg klimaksnya bila asma itu tiba2 melakukan 'lintas langsung' dalam hidup saya setelah setahun dia tidak melintas..ada ingat??..dari saat itu hingga kini, batuk-batuk itu masih saya alami..& lately apabila terdedah kepada suhu sejuk di awal hening pagi, asma itu 'melintas' lagi..saya jarang mendapat 'lintasan' ini kerna saya bukan pengidap asma 'tegar' (bahasa blogger..pinjam jap eh..haha)..oleh kerana berlaku 'kerap lintasan' tersebut, saya merasakan ini sesuatu yg 'luar biasa' untuk sistem tubuh badan saya yg amat 'segar bugar' bentuk fizikalnya..maka itu, jika tiada 'pembatalan' esok saya akan berjumpa seseorang yg pakar tentang sistem respiratori manusia untuk mendapatkan kepastian akan 'keanehan' ini..colleague saya sure tau sapa pakar itu..haha..maklumlah hidup dikelilingi mereka2 yg mahir bab kesihatan manusia..haha..sebelum itu jom layan baca tentang sistem respiratori ini yg saya 'cedok' dari beberapa web..its all in English..if anda tak faham sila rujuk pada kamus2 berdekatan..hehe..PEACE!

Beginning of Respiration
Our respiratory system starts from our nose. We breathe in through our nose and when we do, a flab in our pharynx, the epiglottis, opens up and allows gases to enter our lungs through our windpipe or Trachea.

Dust particles and foreign particles are removed by the nostril hairs and cilia, a microscopic hair like structure found in the trachea. The air travels down to our lungs and it brushes against our larynx (voice box) producing sound. The air continues travelling down along the Trachea and ends up in the lungs.

Lungs
The Trachea is split up into two bronchus that leads into both our lungs. The bronchi are further distributed into bronchi and bronchiole. The air travels along these tubes and finally ends up in the air sacs (alveoli). The air sacs are surrounded by a network of capillaries and as the blood flows through these capillaries, the oxygen in the air sacs(alveoli) diffuse into the blood, thus reoxygenating them. In the cells, the oxygen reacts with the mitochondrion to release energy for vital activities of our body.

Diaphragm
As we breathe in, the diaphragm contracts and depresses so that a lot of air enters and fills up the lungs. The ribs are therefore raised. When we breathe out, the ribs return to their original position and the diaphragm relaxes and arches upwards. The air is forced out of the lungs and returns the same way it came.
The path the air takes to go back out is very similar, except that this time round, the blood meets the air sacs and carbon dioxide diffuses out. This carbon dioxide finally returns to the atmosphere when we exhale.

Allergies can have an effect on many parts of the body: the eyes, nose, throat, lungs, skin, or gastrointestinal tract. Illustration courtesy of the National Cancer Institute/Terese Winslow, artist.

Exposure to what is normally a harmless substance, such as pollen, causes the immune system to react as if the substance is harmful. Substances that cause allergies are called allergens.
An allergy is an overreaction of the immune system to a substance that's harmless to most people, such as pollen. But in someone with an allergy, the body's immune system treats the substance (called an allergen) as an invader and reacts inappropriately, resulting in symptoms that can be anywhere from mildly uncomfortable to potentially life-threatening, in some cases.

In an attempt to protect the body, the immune system of the allergic person produces antibodies called immunoglobulin E (IgE). Those antibodies then cause mast cells (allergy cells in the body) to release chemicals, including histamine, into the bloodstream to defend against the allergen "invader."

It's the release of these chemicals that causes allergic reactions, affecting a person's eyes, nose, throat, lungs, skin, or gastrointestinal tract as the body attempts to rid itself of the invading allergen. Future exposure to that same allergen (things like nuts or pollen that you can be allergic to) will trigger this allergic response again. This means every time the person eats that particular food or is exposed to that particular allergen, he or she will have an allergic reaction.