Lungs

Passive diffusion occurs in the alveoli of the lungs. Oxygen from inhaled air moves across the thin alveolar membrane into the bloodstream, while carbon dioxide moves from the bloodstream into the alveoli to be exhaled.

The normal SpO2 rate in the US is typically around 95-100%. This means that the blood is carrying a healthy amount of oxygen to the body's tissues. If SpO2 levels drop below 90%, it may indicate a potential breathing or circulation issue.

Air tends to flow out of the lungs when the internal pressure of the lungs is higher than the atmospheric pressure. This pressure difference is created by the contraction of the diaphragm and intercostal muscles during exhalation, which reduces the volume of the lungs and forces air out.

lungs contain a special sac like organ known as alveoli which helps in mantaining CO2 and O2 level in the body by diffusing them from the blood to the alveoli and alveoli to the blood respectively

When you inhale, the volume of your chest cavity increases. This expansion is caused by the contraction of the diaphragm and intercostal muscles, allowing more space for the lungs to expand and fill with air.

The larynx (voicebox) is responsible for speech in humans, due to vibrations from exhaled air.

Air flows out of the lungs when the internal pressure is higher than the atmospheric pressure, causing expiration to occur. This pressure gradient is established by the contraction of the diaphragm and intercostal muscles during exhalation.

The three types of bronchioles are terminal bronchioles, respiratory bronchioles, and conducting bronchioles. Terminal bronchioles are the smallest airways in the respiratory system that lead to the respiratory bronchioles where gas exchange occurs. Conducting bronchioles are larger airways that branch off the main bronchi and help to conduct air to the smaller bronchioles.

Octopuses have gills, not lungs. They use their gills to extract oxygen from water, allowing them to breathe underwater.

The bronchopulmonary lymph nodes are responsible for draining lymph from the lungs, bronchi, and trachea. They help in filtering and removing pathogens, dead cells, and other foreign particles from the respiratory system. This process aids in immune response and maintaining overall respiratory health.

Sections of the lungs are called lobes. The right lung has 3 lobes and the left lung has two, which allows room for the heart.

The pleural membrane is a double-layered serous membrane found in the thoracic cavity. The outer layer is called the parietal pleura and lines the thoracic wall, and the inner layer is called the visceral pleura and covers the lungs.

The membranes produce lubricating serous fluid that causes them to adhere closely to one another. This holds the lungs to the thoracic wall allowing easier movement during breathing.

The first thing that happens to most people is called high altitude pulmonary edema, a build up of fluid in the lungs that makes it hard for them to breathe. In very susceptible individuals this can happen at as low as 1500 meters above sea level (air pressure around 85 kPa).

At partial pressures of oxygen less than about 10 kPa, your lungs can no longer efficiently absorb oxygen from the air. If you're breathing normal air, this happens at an overall pressure of around 50 kPa, corresponding to a height of about 6 km above sea level.

Should the overall air pressure drop below around 10 kPa (normal atmospheric pressure is around 100 kPa and the pressure at the top of Mount Everest is around 30 kPa), water evaporation would become significant. By the time the pressure dropped to 6 kPa, all the moisture in your body would be evaporating so fast it would literally be boiling.

The time a bullet stays in the air, also known as time of flight, can vary depending on the type of firearm and the bullet's velocity. On average, most bullets travel at supersonic speeds, so they can cover a distance of a few hundred meters in less than a second. Generally, for typical firearms, the time of flight is usually less than a second.

The crisscross structures holding the menisci in place are called ligaments. These ligaments help stabilize the menisci within the knee joint and aid in preventing excessive movement or displacement of these important cartilaginous structures.

Hemoglobin is the compound in red blood cells that carries oxygen from the lungs to body cells. The oxygen combines readily with the ion in hemoglobin, and hemoglobin can carry more than twenty times its own volume in oxygen. After releasing oxygen to the cells, hemoglobin collects carbon dioxide and carries it to the lungs where it is exhaled.

Drinking milk, getting at least 8 hours of sleep, exercise, eating fruits and vegetables, and eating a good diet.

Those things should help the growth of the human body.

It may take a while though

:)

Air, like all fluids, has no "natural movement." All its movements are determined by a wide variety of factors. One of those factors is its velocity.

Slow moving air tends to be smooth and laminar. But fast moving air tends to break up and create eddies and swirls.

There are other factors as well. For example, what surfaces is that air passing over? If the surface is a designed surface of a supersonic jet, the velocity of the air passing over that jet's surface can remain laminar. In fact it must remain laminar for the jet to fly safely at supersonic speeds.

Bottom line, there is no "natural movement." How that air flows at any given speed depends in large part on the surfaces that the air is blowing over.

Bronchioles are located in the lungs and are part of the respiratory system. They are smaller airways that branch off from the bronchi and carry air to the alveoli for gas exchange.

Haemoglobin in the carry oxygen to all parts of the body in the form of oxyhaemoglobin.It leaves oxygen,carries carbon dioxide from the body cells forming carboxyhaemoglobin to carry the carbon dioxide to the lungs to be passed out through the nose.

Various molecules have to get from where they are to where they are needed and can be used. Diffusion is just a random movement of molecules. Oxygen is not PUT into the blood cells, for example. It is brought into a close enough proximity to the red blood cells that DIFFUSION is likely to bring it close enough to be captured by the cells to be carried to the other cells. There, it will be released and DIFFUSE to the cells and be used (by the mitochondria) to complete the necessary oxidative processes.

when you inhale..(take in oxygen)..the air fills up the lungs, the ribcage expands and the muscle sheet called the diaphragm pushes downward and flattens as you inhale ..whn you ehale the muscle returns back to domed-shape

The job of the excretory system is to remove waste and toxins from the body. It includes organs such as the kidneys, liver, and skin that filter waste products from the blood and eliminate them through urine, feces, and sweat. This system helps maintain the body's internal balance by regulating fluid levels and removing harmful substances.

There are approximately 0 rods located in the human fovea. The fovea is the central part of the retina, and it contains mainly cones, which are responsible for color vision and visual acuity in bright light. Rods, which are responsible for vision in low light, are more abundant in the periphery of the retina.