(Tıp) (alveoli) Alveol: a) Akciğerlede "bronchiole" uçlarının genişlemesi ile meydana gelen ince hava kesecikleri, petek; b) Diş yuvası; c) Mide mukozasının peteksi hücreleri, d) Açini, asinus, çukurcuk
A small cavity in a coral, shell, or fossil A small depression, sac, or vesicle, as the socket of a tooth, the air cells of the lungs, the ultimate saccules of glands, etc
small air "sacks" deep in the lungs where exchange of carbon dioxide and oxygen occurs Alveoli are delicate structures which are prone to damage from air pollutants
Bronchiolies eventually lead to tiny, stretchy sacs called alveoli These sacs blow up like tiny balloons when you breathe in Oxygen from the air passes through the walls of the alveoli into capillaries while carbon dioxide is passed out
The air we breathe in travels along a network of branching passageways until it reaches the alveoli tiny, spherical air sacs that look like bunches of grapes The alveoli are the working units of the lung because it's here that oxygen and carbon dioxide are exchanged between the lung and blood
The millions of tiny compartments within the lungs at the ends of the airways (To imagine the shape, picture bunches of hollow grapes at the ends of hollow stems ) Also called "air sacs " Alveoli are where gas exchange takes place-that is, where the blood picks up oxygen (from the air a person has breathed in) and releases carbon dioxide (to be breathed out) (singular: alveolus)
Tiny, balloon-like air sacks in the lungs Alveoli are designed to allow oxygen to pass rapidly into the blood and are also efficient at absorbing inhaled drugs
tiny air sacs found at the end of the smallest branches of the bronchial tree; oxygen passes into the bloodstream and carbon dioxide passes into the lungs to be exhaled through the alveoli
Any of the 300 million or so small air spaces in the lungs where carbon dioxide leaves the blood and oxygen enters it. Alveoli form clusters (alveolar sacs) connected by alveolar ducts to the bronchioles. Their thin walls contain numerous capillaries, supported by a mesh of elastic and collagenous fibres; gas exchange between them occurs by diffusion. A film of fatty substances (surfactant) over the walls reduces surface tension, keeping the alveoli from collapsing and making it easier to expand the lungs. Alveolar macrophages (see leukocyte; lymphoid tissue) act as mobile scavengers, engulfing foreign particles in the lungs
[ al-'vE-&-l&s ] (noun.) circa 1706. From Latin alveolus, a diminutive of alveus (“a tray, trough, basin”) alvus (“the belly, the stomach, bowels, womb, etc.”).