Lungs

the gases flow through the two bronchi into the two lungs. the tube further divides into bronchioles which end with very thin sack like structures called alvoeli. this is where the air is filtered. oxygen gets mixed with the blood and the rest is filtered out for exit

Narrowing of the airways in the lungs, often referred to as airway obstruction, can be caused by various factors, including chronic conditions like asthma and chronic obstructive pulmonary disease (COPD). Inflammation, mucus production, and bronchoconstriction can also contribute to this narrowing. Additionally, external factors such as allergens, irritants, and infections may exacerbate these conditions, leading to further airway constriction.

Nitrogen gas is not exchanged between the alveoli and the blood in the lung capillaries primarily because it is relatively inert and does not readily dissolve in blood or participate in biological processes. Unlike oxygen and carbon dioxide, which are actively exchanged due to their solubility and metabolic roles, nitrogen remains in a gaseous state and is not utilized by the body. Additionally, the partial pressure of nitrogen in the alveoli is similar to that in the blood, resulting in no net movement across the alveolar-capillary membrane.

Lungs evolved before hair in the evolutionary timeline. Lungs are believed to have initially developed in fish as adaptations to breathe air, allowing some species to exploit terrestrial environments. Hair, on the other hand, is a characteristic of mammals and evolved later as a means of insulation and protection. Therefore, the development of lungs precedes the evolution of hair in the lineage of vertebrates.

every part of your heart is responsible for pumping blood because if one part don't work it all don't work

Primary brochi first enter the lungs on both the left and right sides.

White areas in an X-ray of the upper portion of the lungs typically indicate areas of increased density, which can be due to a variety of conditions. Common causes include pneumonia, lung nodules, tumors, or pulmonary edema. These areas may suggest the presence of fluid, infection, or mass lesions in the lung tissue. A thorough evaluation by a healthcare professional is essential for accurate diagnosis and treatment.

Hexavalent chromium can be harmful when inhaled, leading to irritation and damage to the mucous membranes in the nose and throat. Exposure can cause respiratory issues, including coughing, wheezing, and shortness of breath. Prolonged inhalation may result in more severe conditions, such as lung cancer and chronic respiratory diseases. Overall, it poses significant health risks due to its toxic and carcinogenic properties.

Stage 1b in cancer indicates that the disease is in its early phase but has specific characteristics that distinguish it from stage 1a. Typically, this stage suggests that the tumor is larger or has certain features, such as being more aggressive or having invaded nearby tissues, but it has not spread to lymph nodes or distant sites. The prognosis at this stage is generally favorable, with treatment options often including surgery, radiation, or chemotherapy depending on the cancer type.

A baseball-sized tumor on a lung could potentially be cancerous, but it is not definitively so without further testing. Tumors can be benign (non-cancerous) or malignant (cancerous), and imaging studies, biopsies, and other diagnostic procedures are necessary to determine the nature of the tumor. It's essential for anyone with such a finding to consult a healthcare professional for an accurate diagnosis and appropriate management.

The action of the lungs is primarily measured by pulmonary function tests, which assess various aspects of lung capacity and airflow. Key measurements include forced vital capacity (FVC), which evaluates the total amount of air exhaled after a deep breath, and forced expiratory volume in one second (FEV1), which measures how much air can be forcibly exhaled in the first second. These tests help diagnose respiratory conditions and monitor lung health. Additionally, arterial blood gases (ABG) can measure oxygen and carbon dioxide levels in the blood, providing insights into lung function.

If you mean losing your entire liver/kidneys/lungs, you will die very quickly. They are there for a reason and serve vital roles in keeping us alive. However: * even though your liver carries out 500 important processes, including the de-toxifying of food, manufacturing of bile, and storage of carbohydrates, it is the largest internal organ. It is well known that you can still survive, even if you lose 80% of your liver. (this figure may need clarification though). What's left of your liver will then grow back. * If you donate/lose a kidney, the other one will grow to compensate the loss of the other. Therefore, you can easily survive on just the single kidney, and thousands of people are at the moment. * I have never heard of any cases where someone can live with just the one lung, though. I may be wrong, but I'm sure you need both to survive.

Animals that breathe only through lungs include mammals, birds, and most reptiles. These species rely solely on pulmonary respiration, using their lungs to exchange oxygen and carbon dioxide with the environment. Unlike amphibians and many fish, which can also breathe through skin or gills, these animals are adapted to terrestrial or aerial life, making lung respiration essential for their survival. Examples include humans, eagles, and snakes.

Any fluid coming from your lungs deserves medical attention. Depending on its color and its contents it good mean cancer, tuberculosis, pneumonia, some other infection, or internal bleeding. You should be asking your doctor.

A pregnant person may have a lower lung capacity due to the physical changes that occur during pregnancy. As the uterus expands, it can push against the diaphragm, limiting its movement and reducing the overall volume of air the lungs can hold. Additionally, hormonal changes can lead to increased respiratory rate and decreased functional residual capacity, which may further affect breathing efficiency. These factors combined can lead to a sensation of breathlessness, especially in the later stages of pregnancy.

Tiktaalik, a transitional fossil between fish and tetrapods, exhibits several key features. Its gills suggest it retained aquatic breathing, while the presence of a neck allowed for greater head mobility, a trait advantageous for both feeding and navigating its environment. The round head indicates a more versatile feeding strategy, and its fins, which show both fish-like and early limb characteristics, suggest an adaptation for both swimming and potentially supporting itself on land. These features collectively illustrate the evolutionary shift from water to land.

Shattered glass in the lung refers to a medical condition where tiny glass particles are inhaled and become embedded in lung tissue, often due to accidents or industrial exposure. This can lead to lung injury, inflammation, and respiratory issues. Symptoms may include coughing, chest pain, and difficulty breathing, and treatment typically involves managing symptoms and preventing infection. In severe cases, surgical intervention may be necessary to remove the foreign material.