Lungs in Biological Definition

Lung

... The heart in relation to the lungs (from an older edition of Gray's Anatomy ) ... showTocToggle("show","hide") 1 Mammalian lungs 1.1 Location 1.2 Human lungs 2 ...

Homeostasis

... the concentration of carbon dioxide in the human body increases, the lungs are signalled to increase their activity and expel more carbon dioxide. ... insulin and glucagon to control blood-sugar concentration. The lungs take in oxygen and give off carbon dioxide . The kidneys remove ...

Blood

... when skin is removed and are seen directly. Blood moves in blood vessels and is circulated by the heart , a muscular pump. It passes to the lungs to be oxygenated, and then is circulated throughout the body by the arteries . It diffuses its oxygen by passing through tiny blood vessels called ...

Diffusion

... in the other, producing no change. Types of diffusion Diffusion in cell biology Diffusion in the respiratory system In mammalian lungs , a process of diffusion takes place in the aveoli : due to differences in partial pressures across the alveolar-capillary membrane, oxygen ...

Electron transfer chain

... uses the electrochemical potential generated to create ATP . Complex IV is the terminus of the electron transfer chain , where oxygen from the lungs is reduced by electrons and hydrogen protons (provided by NADH and/or FADH2 ) to make water . Cytochrome c Cytochrome c is also an ...

Marcello Malpighi

... enabled him to describe the development of the chick in its egg , and discovered that insects (particularly, the silk worm ) do not use lungs to breathe, but small holes in their skin called tracheae . Later he falsely concluded that plants had similar tubules. He was the first to see ...

Marfan syndrome

... Marfan syndrome is a connective tissue disorder, affecting many structures, including the skeleton , lungs , eyes , heart and blood vessels . It is named for the French pediatrician Antoine Marfan , who first described it in 1896 . The disease is ...

Passive transport

... metabolic activity will consume oxygen , which will reduce its concentration in the bloodstream; diffusion of oxygen in the alveoli of the lungs allows it to be replenished. Facilitated diffusion Main article: Facilitated diffusion Facilitated diffusion is movement of molecules ...

Thermoregulation

... radiation and evaporation) about 77. Hence it is clear the chief means of loss are the skin and the lungs. The more air that passes in and out of the lungs in a given time, the greater the loss of heat. And in such animals as the dog, who do not perspire easily by the skin, respiration becomes far more ...