释义 |
acinus
ac·i·nus A0058400 (ăs′ə-nəs)n. pl. ac·i·ni (-nī′) One of the small saclike dilations composing a compound gland. [Latin, berry.] a·cin′ic (ə-sĭn′ĭk), ac′i·nous adj.acinus (ˈæsɪnəs) n, pl -ni (-ˌnaɪ) 1. (Anatomy) anatomy any of the terminal saclike portions of a compound gland2. (Botany) botany any of the small drupes that make up the fruit of the blackberry, raspberry, etc3. botany obsolete a collection of berries, such as a bunch of grapes[C18: New Latin, from Latin: grape, berry] acinic, ˈacinous, ˈacinose adjac•i•nus (ˈæs ə nəs) n., pl. -ni (-ˌnaɪ) 1. a small, rounded form, as a lobule, sac, seed, or berry. 2. the smallest secreting portion of a gland. [1725–35; < Latin: grape, berry, seed of a berry] ac′i•nar (-nər, -ˌnɑr) a•cin•ic (əˈsɪn ɪk) adj. ThesaurusNoun | 1. | acinus - one of the small drupes making up an aggregate or multiple fruit like a blackberrydrupelet - a small part of an aggregate fruit that resembles a drupe | | 2. | acinus - one of the small sacs or saclike dilations in a compound glandgland, secreter, secretor, secretory organ - any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstreamsac - a structure resembling a bag in an animal | TranslationsAcinus
acinus[′as·ə·nəs] (anatomy) The small terminal sac of an acinous gland, lined with secreting cells. (botany) An individual drupelet of a multiple fruit. Acinus (1) A structural and functional unit or the terminal secretory portion of the salivary, pancreatic, lacteal, sebaceous, or other saccular (alveolar) glands. The acinus is a bubble-like formation of one or more types of gland cells situated on a basement membrane and surrounded by connective tissue, capillaries, and nerve fibers. The apexes of the cells with their microvilli are directed toward the chamber of the acinus into which the secretion is discharged. (2) A part of the respiratory apparatus in mammals that includes a section of the lung corresponding to the branches of the terminal bronchus—that is, the bronchioles, alveolar passages, and alveoli. One pulmonary lobule consists of 12–18 acini. acinus
acinus [as´ĭ-nus] (pl. a´cini) (L.) any of the smallest lobules of a compound gland.liver acinus the smallest functional unit of the liver, a mass of liver parenchyma that is supplied by terminal branches of the portal vein and hepatic artery and drained by a terminal branch of the bile duct. Liver acinus: Hepatic lobules are represented by hexagons (solid lines); liver acinus is represented by rhombus (dotted line). From Dorland's, 2000. pulmonary acinus terminal respiratory unit.ac·i·nus, gen. and pl. ac·i·ni (as'i-nŭs, -nī), [MIM*604562] One of the minute grape-shaped secretory portions of an acinous gland. Some authorities use the terms acinus and alveolus interchangeably, whereas others differentiate them by the constricted openings of the acinus into the excretory duct. [L. berry, grape] acinus (ăs′ə-nəs)n. pl. aci·ni (-nī′) One of the small saclike dilations composing a compound gland. a·cin′ic (ə-sĭn′ĭk), ac′i·nous adj.acinus A small, sac-like out-pouching of a compound gland, as in the breast, pancreas, salivary glands and thyroid. Lung A sub-segmental lung structure which, with the primary pulmonary lobule, is the smallest unit of lung tissue. It consists of a terminal bronchiole and the lung parenchyma that arises from it.
Acinus A subsegmental lung structure which, with the primary pulmonary lobule, is the smallest unit of lung tissue. It consists of a terminal bronchiole and the lung parenchyma that arises from itac·i·nus, pl. acini (as'i-nŭs, -nī) [TA] One of the minute grape-shaped secretory portions of an acinous gland. Some authorities use the terms acinus and alveolus interchangeably, whereas others differentiate them by the constricted openings of the acinus into the excretory duct. [L. berry, grape]acinus 1. The part of the air passage of the lung beyond each of the smallest (terminal) bronchioles. There are about 12,000 acini in each lung. The lung ALVEOLI arise from the acini. 2. Any terminal sac-like process of a compound gland. acinus the terminal sac of an alveolar gland. The gland has a multicellular structure with sac-shaped secreting units. In the pancreas, acinar cells secrete the PANCREATIC JUICE.ac·i·nus, pl. acini (as'i-nŭs, -nī) [TA] [MIM*604562] One of the minute grape-shaped secretory portions of an acinous gland. [L. berry, grape]acinus Related to acinus: surfactant, emphysema, liver acinus, Acinar glandWords related to acinusnoun one of the small drupes making up an aggregate or multiple fruit like a blackberryRelated Wordsnoun one of the small sacs or saclike dilations in a compound glandRelated Words- gland
- secreter
- secretor
- secretory organ
- sac
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