What are the major structures that the air passes as it goes from a room into the body and into the blood?
106895
i think the course is as following:\n                                                   room air-nose-trachea-bronchi-bhronciole-terminal bronciole-alveoli-blood
24588
CO2 is carried through the blood in the body to the lungs to be exhalated.
664381
Head, thorax, abdomen. If you are in med school, this might not be the best place to get the answer.
619312
it goes into your lungs and then straight into your blood stream from there.  how do you think oxygen gets in your blood??
472939
Air travels to the lungs through a series of air tubes and passages. It enters the body through the nostrils or the mouth, passing down the throat to the larynx, or voice box, and then to the trachea, or windpipe. In the chest cavity the trachea divides into two branches, called the right and left bronchi or bronchial tubes, that enter the lungs.\n\nIn the adult human, each lung is 25 to 30 cm (10 to 12 in) long and roughly conical. The left lung is divided into two sections, or lobes: the superior and the inferior. The right lung is somewhat larger than the left lung and is divided into three lobes: the superior, middle, and inferior. The two lungs are separated by a structure called the mediastinum, which contains the heart, trachea, esophagus, and blood vessels. Both right and left lungs are covered by an external membrane called the pleura. The outer layer of the pleura forms the lining of the chest cavity.\n\nThe branches of the bronchi eventually narrow down to tubes of less than 1.02 mm (less than 0.04 in) in diameter. These tubes, called bronchioles, divide into even narrower tubes, called alveolar ducts. Each alveolar duct ends in a grapelike cluster of thin-walled sacs, called alveoli (a single sac is called an alveolus). From 300 million to 400 million alveoli are contained in each lung. The air sacs of both lungs have a total surface area of about 93 sq m (about 1000 sq ft), nearly 50 times the total surface area of the skin.\n\nIn addition to the network of air tubes, the lungs also contain a vast network of blood vessels. Each alveolus is surrounded by many tiny capillaries, which receive blood from arteries and empty into veins. The arteries join to form the pulmonary arteries, and the veins join to form the pulmonary veins. These large blood vessels connect the lungs with the heart.\n\n© 1993-2003 Microsoft Corporation. All rights reserved.
528022
into mouth or lungs, through pharynx, into bronchioles and then bronchioli, then into each lung to a sac of alveoli, then onto hemoglobin molecules in blood cells, then to the heart to be pumped to the body and given to a body cell.
338311
The lungs (respiratory system) take in air (using the oxygen and breathing out the carbon dioxide), the heart pumps the oxygen through our arteries (circulatory system)making our blood red.
473152
red blood cells are circular cells that transport oxygen throughout the body. white blood cells are part of the immune system and fight infection and foriegn objects that enter the body. plasma is the liquid part of blood, and platelets are the part of the blood that cause clotting.
181593
i don't think i quite know what ur asking, but as the air enters ur body, it is humidified, and warmed and passes thru ur pharynx, trachea and bronchi before it reaches ur lungs...  i hope that answers ur question
1008428
Veins carry deoxygenated blood from the organs and tissues back to the heart.\nDeoxygenated blood from the body enters the right atrium through two great veins, the superior vena cava which drains the upper part of the body and the inferior vena cava that drains the lower part which drains the portal cyrculation too full with nutrients to nourish the body.
225885
The respiratory system is how you breath in and out. In fact, any organism that participates in gas exchange has a respiratory system. In humans and other mammals, the respiratory system consists of the airways, the lungs, and the respiratory muscles that mediate the movement of air into and out of the body.
512352
The heart is a fist-sized, muscular organ that pumps blood through the body. Oxygen-poor blood enters the right atrium of the heart (via veins called the inferior vena cava and the superior vena cava). The blood is then pumped into the right ventricle and then through the pulmonary artery to the lungs, where the blood is enriched with oxygen (and loses carbon dioxide). The oxygen-rich (oxygenated) blood is then carried back to the left atrium of the heart via the pulmonary vein. The blood is then pumped to the left ventricle, then the blood is pumped through the aorta and to the rest of the body. This cycle is then repeated. Every day, the heart pumps about 2,000 gallons (7,600 liters) of blood, beating about 100,000 times. enchantedlearning.com
901033
After the blood leave the left ventricles it passes through the aorta and the aorta take the blood to the whole body
807200
The first link has an animated description.Anatomy of the Human Heart with Flash Illustration\n\n    *  The Right Atrium, receives "used blood" from the body. Blood will be pushed through the tricuspid valve to the\n\n    * Right Ventricle, the chamber which will pump to the lungs through the pulmonic valve to the\n\n    * Pulmonary Arteries, providing blood to both lungs. Blood is circulated through the lungs where carbon dioxide is removed and oxygen added. It returns through the\n\n    * Pulmonary Veins, which empty into the\n\n    * Left Atrium, a chamber which will push the Mitral Valve open. Blood then passes into the\n\n    * Left Ventricle. Although it doesn't always look like it in drawings done from this angle, this is the largest and most important chamber in the heart. It pumps to the rest of the body. As it pumps, the pressure will close the mitral valve and open the aortic valve, with blood passing through to the\n\n    * Aorta, where it will be delivered to the rest of the body.\n\n\nhttp://www.heartpoint.com/theheart.html\n\nhttp://www.pbs.org/wgbh/nova/heart/\n\nhttp://texasheart.org/HIC/Anatomy/Anatomy.cfm\n\nhttp://education.yahoo.com/reference/gray/illustrations/figure?id=505\n\nhttp://sln2.fi.edu/biosci/preview/heartsee.html\n\nhttp://www.geocities.com/Athens/Forum/6100/1heart.html\n\nSTRUCTURE OF THE HEART.\n\nhttp://www.infovisual.info/03/062_en.html\n\nhttp://www.cayuga-cc.edu/people/facultypages/greer/biol204/heart1/heart1.html\n\nhttp://www.geocities.com/Athens/Forum/6100/1HrtPics.html\n\nGood luck.\n\nKevin, Liverpool, England.
369465
Oxygen enters through the mouth and nose (nasopharynx) and moves down into the trachea and into the lungs. Oxygen and Carbon Dioxide are exchanged in the lungs at the Alveoli. Oxygen enters into the blood stream and Carbon Dioxide leaves the blood stream to be expelled by the exhalation of the lungs. The Oxygenated blood travels from the lungs to the heart, the heart then pumps the Oxygen rich blood into the arteries which take that blood away from the heart and circulate it through the rest of the body. Veins Then come back to the heart carrying oxygen-depleted blood where they are pumped through the heart to the lungs where they get more Oxygen and once again travel back to the heart to be pumped back to the rest of the body. That completes the circuit.
1031103
Your heart is a pump that circulates blood through the many veins and arteries in your body...oxygenated blood leaves your heart ,in your arteries, flows to your tissues, organs and cells depositing oxygen then returns through your veins back through your lungs to heart to re oxygenate the the cycle starts over.
373312
As blood is sent through the capillaries, some of it is filtered through the epithelial wall into the interstitial spaces around the cells in tissues.  This fluid is slowly forced into small little vessels called lymph vessels.  Lymph is the best way of finding out if there are bacteria, virus (pathogens) or even allergens/antigens in the tissues.  The lymph eventually drains into lymph nodes which are major sites for immune system communication. As fluid enters, some is pushed out.  These lymph vessels continue to merge until they become a major lymph vessel that drains in the subclavian vein.  This merges with the vena cava and thus returned to blood circulation.