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alveolus    
n. 小孔,齿槽,肺泡

小孔,齿槽,肺泡

alveolus
n 1: a tiny sac for holding air in the lungs; formed by the
terminal dilation of tiny air passageways [synonym: {alveolus},
{air sac}, {air cell}]
2: a bony socket in the alveolar ridge that holds a tooth [synonym:
{tooth socket}, {alveolus}]

Alveolus \Al*ve"o*lus\ ([a^]l*v[=e]"[-o]*l[u^]s), n.; pl.
{Alveoli} (-l[imac]). [L., a small hollow or cavity, dim. of
alveus: cf. F. alv['e]ole. See {Alveary}.]
1. A cell in a honeycomb.
[1913 Webster]

2. (Zool.) A small cavity in a coral, shell, or fossil.
[1913 Webster]

3. (Anat.) A small depression, sac, or vesicle, as the socket
of a tooth, the air cells of the lungs, the ultimate
saccules of glands, etc.
[1913 Webster]


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  • Pulmonary alveolus - Wikipedia
    A pulmonary alveolus (pl alveoli; from Latin alveolus 'little cavity'), also called an air sac or air space, is one of millions of hollow, distensible cup-shaped cavities in the lungs where pulmonary gas exchange takes place [1]
  • An Alveolus Anatomy: Microstructure and Functional Units
    A high-density clinical guide to alveolar anatomy, covering microstructure, gas exchange mechanisms, and clinical correlations for healthcare professionals
  • Alveolus - Wikipedia
    Alveolus ( ælˈviːələs al-VEE-ə-ləs, UK also ˌælviˈoʊləs AL-vee-OH-ləs; pl alveoli ælˈviːəlaɪ al-VEE-ə-ly, UK also ˌælviˈoʊlaɪ AL-vee-OH-ly; from Latin alveolus 'little cavity') is a general anatomical term for a concave cavity or pit [1][2]
  • What Are Alveoli? Function, Structure, and Damage
    Each alveolus is wrapped in a web of capillaries so dense that blood flows across nearly the entire surface of the air sac In adults, this network is organized as a single layer woven into the walls (called septa) between neighboring alveoli
  • Alveoli: Function, Lung Anatomy, and Causes of Damage
    Alveoli are tiny air sacs in the lungs that help move oxygen into the bloodstream and remove carbon dioxide Surfactant fluid helps keep alveoli open so gases can pass through easily Diseases like pneumonia and emphysema can damage alveoli and make breathing hard
  • Alveoli: Overview and Practice Questions (2026)
    Alveoli are tiny, balloon-like structures located at the end of the respiratory tree, specifically in the lungs These microscopic sacs are crucial for gas exchange, enabling the oxygen we breathe in to enter the bloodstream while removing carbon dioxide from the blood
  • ALVEOLUS Definition Meaning - Merriam-Webster
    The meaning of ALVEOLUS is a small cavity or pit
  • What Are Alveoli in the Respiratory System? - ScienceInsights
    Alveoli are tiny air sacs at the very ends of your airways where your lungs actually do their job: swapping oxygen into your blood and pulling carbon dioxide out
  • Alveoli: Anatomy, function and clinical points | Kenhub
    The term alveolus (singular) refers to a hollow cavity, basin or bowl in latin Consequently, there are different types of alveoli (plural) found throughout the human body
  • Pulmonary alveolus | Lungs, Respiration, Gas Exchange - Britannica
    pulmonary alveolus, any of the small air spaces in the lungs where carbon dioxide leaves the blood and oxygen enters it Air, entering the lungs during inhalation, travels through numerous passageways called bronchi and then flows into approximately 300,000,000 alveoli at the ends of the bronchioles, or lesser air passages





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