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Biology Essay Respiration Process
Biology Essay Respiration Process
Biology Essay Respiration Process
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Journey through the Respiratory System
An oxygen molecule has one of the most important and vital roles. It is needed in order for each and every one of our body cells to produce energy.
When oxygen molecules have entered through the mouth and nose, these molecules began their journey through the respiratory system.
To begin with the oxygen travels down the trachea or can also be known as the windpipe along with more oxygen molecules. The trachea is a hollow, boney tube allowing respiratory air to pass through. The trachea connects our nose to the mouth and then down to the lungs, it is located in front of our neck. While the oxygen molecules are going down the trachea, they will quickly brushes against the cilia. The cilia are a short, hair like vibrating structure. It is responsible for preventing bacteria or dirt from
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clogging onto the lungs. Next, the trachea leads the oxygen molecules to the bronchus which is located just below the trachea.
The bronchus is the major air passage of the lungs, it looks like branches. It is then divided into two, and further the molecules went, the bronchus divided into more tiny and narrowed bronchus called 'bronchioles'.
After the molecules traveled down bronchioles, the oxygen molecules find themselves at a dead end. Although, at the end of each bronchioles, there are tiny air sacs called Alveoli. The molecules now entered the Alveoli. (Singular: Alveolus) The Alveolus is shaped like group of grapes and is where the gas exchange of oxygen and carbon dioxide takes place.
The oxygen molecules passes through the wall of the capillary, the capillary absorbs the oxygen molecules and transport them to the blood stream. The oxygen molecule reaches the red blood cells. The red blood cells are red in color because they contain a chemical called 'Hemoglobin.' The oxygen poor blood (de-oxygenated blood) was being pumped to the heart through the pulmonary artery. As soon as the oxygen molecule attaches to the Red Blood Cells, it transform into oxygen
rich. As the oxygen molecules travels through the blood stream, they are now going to the pulmonary artery and they are being taken to the heart where they will be pumped around the body. Once they are pumped by the heart, they will be heading for a muscle in the arm, where they will be going to a red blood cell in order to produce energy. As they get closer to the red blood cell, there is already glucose molecules and water waiting to be transformed into energy. As the oxygen molecule joined with the other two molecules, they make energy. Now they have turned from an oxygen molecule to carbon dioxide molecule. They will now have to leave the body, by being breathed out. After the pulmonary artery has taken the carbon dioxide molecule to the heart, it will be pumped to each and every cell of our body through the artery. Since it is now carbon dioxide, it is considered a waste product. Therefore, it will have to make its way out of the body. The carbon dioxide attaches itself back onto a red blood cell which took it to the heart then lungs, alveoli, bronchus, bronchioles, trachea and finally the nose. Now, the carbon dioxide molecules have been exhaled out of the body. Where the process will be repeated all over again.
When you breathe in, air containing carbon dioxide (CO2) and oxygen (O2) it moves down your trachea; a tunnel containing cartilage and smooth tissue. Air then travels through two hollow tubes called bronchi; narrow branches lined with smooth muscle, mucosal and ringed cartilage to support the structure. The bronchi divide out into smaller tunnels called bronchioles; are small branches 0.5-1mm, lined with muscular walls to help dilate and constrict the airway. At the end of the bronchioles are little air sacs called alveoli; which assist in gas exchange of O2 and CO2. (Eldridge, 2016) Towards the end of alveoli are small blood vessel capillaries. O2 is moved through the blood stream through theses small blood vessels (capillaries) at the end of the alveoli and the CO2 is then exhaled. (RolandMedically,
I only chose respiratory as an answer. However, the correct answers are respiratory and cardiovascular because of the pulmonary circulatory system. Gas exchange occurs at pulmonary capillary beds.
The circulatory system and respiratory system share a highly important relationship that is crucial to maintaining the life of an organism. In order for bodily processes to be performed, energy to be created, and homeostasis to be maintained, the exchange of oxygen from the external environment to the intracellular environment is performed by the relationship of these two systems. Starting at the heart, deoxygenated/carbon-dioxide (CO2)-rich blood is moved in through the superior and inferior vena cava into the right atrium, then into the right ventricle when the heart is relaxed. As the heart contracts, the deoxygenated blood is pumped through the pulmonary arteries to capillaries in the lungs. As the organism breathes and intakes oxygenated air, oxygen is exchanged with CO2 in the blood at the capillaries. As the organism breathes out, it expels the CO2 into the external environment. For the blood in the capillaries, it is then moved into pulmonary veins and make
oxygen out of the blood and uses it in the body's cells. The cells use
However, the lower respiratory tract is consist of trachea, two mainstem bronchi, lobar, segmental and sub-segmental bronchi, bronchioles, alveolar, ducts, and alveoli (Ignatavicius & Workman, 2010).
Red blood cells deliver the oxygen to the muscles and organs of the body.
Healthy lung tissue is predominately soft, elastic connective tissue, designed to slide easily over the thorax with each breath. The lungs are covered with visceral pleura which glide fluidly over the parietal pleura of the thoracic cavity thanks to the serous secretion of pleural fluid (Marieb, 2006, p. 430). During inhalation, the lungs expand with air, similar to filling a balloon. The pliable latex of the balloon allows it to expand, just as the pliability of lungs and their components allows for expansion. During exhalation, the volume of air decrease causing a deflation, similar to letting air out of the balloon. However, unlike a balloon, the paired lungs are not filled with empty spaces; the bronchi enter the lungs and subdivide progressively smaller into bronchioles, a network of conducting passageways leading to the alveoli (Marieb, 2006, p. 433). Alveoli are small air sacs in the respiratory zone. The respiratory zone also consists of bronchioles and alveolar ducts, and is responsible for the exchange of oxygen and carbon dioxide (Marieb, 2006, p. 433).
The Circulatory System is a transportation and cooling system for the body. The Red Blood Cells act like billions of little mail men carrying all kinds of things that are needed by the cells, also RBC's carry oxygen and nutrients to the cells. All cells in the body require oxygen to remain alive. Also there is another kind of cells called white blood cells moving in the system. Why blood cells protect from bacteria and other things that are harmful. The Circulatory system contains vein arteries, veins are used to carry blood to the heart and arteries to carry the blood away. The blood inside veins is where most of the oxygen and nutrients are and is called deoxygenated and the color of the blood is dark red. However, blood in the arteries are also full of oxygen but is a bright red. The main components of the circulatory system are the heart, blood, and blood vessels.
Only the smallest particles of the coal dust make it past the nose, mouth, and throat into the alveoli found deep in the lungs. The alveoli, or air sacs, are responsible for exchanging gases with the blood, and are located at the end of each bronchiole. Microphages, a type of blood cell, gather foreign particles and carry them to where they can either be swallowed or coughed out. If too much dust is inhaled over a long period of time, some dust-laden microphages and particles collect permanently in the lungs causing black lung disease.
It is when much needed oxygen is obtained by the body in order for respiration to take place and the waste CO2 is taken out of the body. In us mammals, the exchange takes place in the lungs which contain a large number of alveoli. These are sponge-like structures in which the diffusion takes place. They are highly adapted to diffuse the gases as they give a large surface area for exchange of the gases.
The larynx prevents food and liquids from traveling down the air path ways which could result in choking. From the larynx, Bronchi trachea splits into two bronchi each leading to a lung, each lung is divided into lobes. The right lung has three lobes and the left has two lobes. The right lung is slightly larger than the left lung. The two lungs are mainly made of up connective tissue, which gives them their soft and spongy texture. The bronchi branch are smaller and are called bronchioles which are divided many more times in the lungs. The lungs is made up of connective tissue, blood, lymphatic tissue, air pathways and alveoli are at the end of the branches inside of the lungs. The alveoli sends oxygen and removes carbon dioxide. This is a basic view of how the respiratory system functions and if the respiratory system doesn’t do its job then this could lead to infectious diseases of the respiratory
They are oxygen and carbon dioxide, and they are transported throughout the body in the blood. Plasma has the capability to transport some of the dissolved oxygen and carbon dioxide, but the majority of the gases that are transported in the blood are bound to transport molecules. However, when the partial pressure of carbon dioxide is higher in the tissues, the enzymes catalyzes a reaction between the carbon dioxide and the water to form carbonic acid. Carbonic acid will then dissociate into hydrogen ion and bicarbonate ion. When the partial pressure of carbon dioxide is low in the lungs, the reactions reverse and carbon dioxide is freed into the lungs to be
Here, deep in the lungs, oxygen diffuses through the alveoli walls and into the blood in the capillaries and gaseous waste products in the blood—mainly carbon dioxide—diffuse through the capillary walls and into the alveoli. But if something prevents the oxygen from reaching t...
When breathing occurs, air enter through the mouth or/and nose and passes through the pharynx, larynx, and trachea. At this point in the body, the trachea splits off into the right and left bronchi....
The larynx provides a passageway for air between the pharynx and the trachea. The trachea is made up of mainly cartilage which helps to keep the trachea permanently open. The trachea passes down into the thorax and connects the larynx with the bronchi, which passes to the lungs. 3. Describe the mechanisms of external respiration including the interchange of gases within the lungs.