1991), who numbered successive generations of air passages from the trachea (generation 0) down to alveolar sacs (generation 23). This “regular dichotomy” model assumes that each bronchus regularly divides into two approximately equal-size daughter bronchi; it is unlikely to be tru in practice where bronchus length is variable, pairs of daughter bronchi are often unequal in size, and trifurcations may be demonstrated. However, as a rough approximation it may be assumed that the number of
BIRD MIMICRY Mimcry is the superficial resemblance between two or more organisms which are not taxonomically related. This resemblance may be in appearance, behavior, sound, scent and even location. Some sort of vocalization is produced by most of the birds. Almost every species of bird produces some sort of vocalization. Mockingbirds are those birds that mimic the call of other birds. Australia’s amazing Lyrebird is the world’s greatest mimic which is capable of mimic natural and artificial sounds
cells happy and help to maintain homeostasis. There are many carcinogens that cause cancer leading to the lungs not to doing their job. Sometimes the cancer spreads and causes metastases. The patient’s medical diagnosis is malignant neoplasm of the bronchus and lung brain metastases. The lungs are two large sacs within the human body that optimize gas exchange between the air breathed and the blood. (Lung cancer, 2013) The lungs take in oxygen and release carbon dioxide. The lungs are made of spongy
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
Cancer is a group of more than 100 different diseases which characterized by uncontrolled cellular growth, local tissue invasion and distant metastasis (Chabner, 2006). It has been difficult to develop an accurate definition for cancer. The reputed British oncologist Willis has defined cancer as "an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of the normal tissues and persists in the same excessive manner after cessation of the stimuli which evoked the
The system that we were assigned to was the respiratory system (explain what is it) Kamal-Nasal cavity: The nasal cavity is the organ that is located in the middle of face. There are many functions of this organs such as trapping large particles so they may not be inhaled and be able to harm the lungs and it also helps to take in oxygen for the lungs. Mohammed-Pharynx: Although the pharynx is a part of the digestive system it is also a part of the respiratory system. The pharynx or the throat is
A Mink is a Carnivore found in many parts of the world. Two animals are branched out of the name “Mink”, there is the American Mink and the European Mink. The differences between these two animals include that the American Mink is larger in addition the difference can be seen in their skulls as the American Mink has a mandible that attaches to the rest of the skull differently than the European Mink allowing for greater range of motion ones it will bite. The American Mink is a semiaquatic mammal
The purpose of the lung dissection Is to see the physiology of the lungs and how the lungs and heart work together. The goal of the lab was to fully understand the Anatomy & Physiology of the lungs with the parts that were outside of the organ of the lungs; The question of the lab was “How to do the lungs function and how do they get air to the blood. The steps of the dissection that were taken, the first step was taking the heart apart from the lungs and detach the tubing from the heart to the
Introduction The following information regards to the pharmaceutical medication albuterol. This medication is one of the most prescribed treatments for asthma symptoms in modern western medicine. Albuterol may be known as: Aerolin, Asmaven, Asthalin, Buventol, Broncovaleas, ProAir, Proventil, Salbutamol, Sultanol, Ventolin, and others.1 Knowing this, the contents that follow apply to each of the names above, and they will all be referred to as albuterol. The background of the medication, its chemistry
The immune system is the human body’s defense system. This system fights against pathogens. Pathogens are viruses, bacteria, fungi, protozoa, and parasite worms that cause disease. The skin of the human body is our best defense, against these things There are four features that define the immune system: self/non-self recognition. This is when the B and T cells only attack cells or substances that they recognize as non-self. This specificity means that only certain invaders are attacked. Diversity
The trachea filters the air we breathe. At the end of the Trachea it splits into two which is called Bronchus. Bronchus are two air tubes that branch off to the Trachea and carry air directly into the lungs. The lungs are the main organ in the respiratory system. In the lungs, oxygen is taken into the body and carbon dioxide is breathed out. The red blood cells
Respiratory Tract The trachea, or windpipe, is a tubular organ that connects the larynx to the lungs. It is lined with special cells that produce mucus. From the trachea, air passes to the right and left lungs through their corresponding bronchi. Each bronchus divides into bronchioles, which are smaller tubes that carry air further down to the air sacs, also called
series of tubes and airways. After passing through the mouth and throat, air moves through the larynx, commonly known as the voice box, and then through the trachea, or windpipe. The trachea divides into two branches, called the right bronchus and the left bronchus, that connect directly to the lungs. Air continues through the bronchi, which divide into smaller and smaller air passages in the lungs, called bronchioles. The bronchioles end in clusters of tiny air sacs, called alveoli, which are surrounded
Respiratory System Have you ever felt like you were out of breath…. This all falls under the respiratory system. The respiratory system is divided into two different portions. The first is made up of the upper airway and the second portion is the lower airway. Muscles, respiratory distress, failure, hypoxic drive, extra. The upper air way consists of the nasal passage, oral cavity, pharynx, larynx, epiglottis and trachea. The nasal cavity is a giant space located behind the nose; both nostrils
Pathophysiology Patients with this condition experience an attack when exposed to stimulating factors, such as dust, smoke, perfume, animals and pollen among others. The stimulus causes inflammation on the walls of bronchus, causing the secretion of mucus. The muscles of bronchus also respond by causing repetitive spasms that constrict muscles of the bronchioles in the lungs. Stress and panic during an
The right bronchi is wider but shorter (2.5cm) than the left bronchi and more vertical. As the right bronchi is more vertical, there is a higher chance of it becoming obstructed from foreign particles. The left bronchus is about 5cm long and is narrower than the right. The left bronchus is more horizontal. The bronchi is made up of the same layers as the trachea, the outer layer consisting of elastic and fibrous tissue which encloses the cartilage. The middle layer made up of smooth muscle and cartilage
caught in the bronchi and triggers coughing. On the handouts, there are three different pictures of the inside of the trachea, showing the difference between a normal healthy trachea, and inflamed one and another with a mucus plug from the left main bronchus. These pictures were taken from the internet, with the address on the handout. A Ventolin inhalator is breathed in through the mouth to open up the bronchial tubes of the lungs. It relaxes the smooth muscles of all the airways, from the trachea
Cause and Effect of Smoking “Young people are attracted to caffeine, hard drugs, alcohol and smoking for any number of reasons.” Today in this world, smoking is rapidly spreading all over the world and nobody is trying to prevent this habit. Smoking has become common and fashionable in this world, especially, among young generation. “Smoking and/or drinking are often seen as a ‘cool’ or adult thing to do but it is a case of trying to educate young people about the dangers of these.”
I. Introduction The Chelonian sea turtle and Passenger Pigeon may look different even though they are both from kingdom Animalia. One specie has a lung and the other has a lung-air sac system, these two species have many differences but as well have many things in common. In a book they are even compared that both species was and still are impacted by humans, even though the book is not written by a scientist it’s well written and research in what truly affects both species (Davidson, 2001)
The trachea is strengthened with C shaped bands of cartilage so air gets through trachea easily. The trachea then divides into two small bronchi. The bronchus (singular of bronchi) is a passage of airway in the respiratory tract that conducts air into each lung. The bronchi then divide into even smaller bronchioles. Bronchioles are a tiny branch of air tubes within the lungs that lead air to the alveoli