What's the difference between acini and alveoli?

Acini


Definition:

  • (pl. ) of Acinus

Example Sentences:

  • (1) The presence of prostatic invasion either into the stroma or involving prostatic ducts and acini only had no adverse effect on outcome.
  • (2) Acetylcholine caused a rapid decrease (42% in 1 min) in 36Cl content of control acini which were preloaded with tracer for 12 min, but only a 23% decrease in acini of reserpine-treated rats.
  • (3) Acini in the parotid gland of the North American mink (Mustela vision) are composed of seromucous cells that contain secretory granules of peculiar morphology.
  • (4) PGP 9.5 immunoreactive nerve fibers were found surrounding the acini, salivary ducts and blood vessels.
  • (5) The binding of 125I-labeled epidermal growth factor (EGF) was compared in acini isolated from the regenerating remnant following 90% partial pancreatectomy (ppx) and from the pancreas of sham-pancreatectomized (sham-ppx) rats.
  • (6) Salivary acini were enzymatically isolated from submandibular glands of adult male mice.
  • (7) Nerve fibers showing SP- and CGRP-LI were also observed close to the acini and ducts of the glands, in the blood vessel walls, close to the perichondrium of all the cartilages, and outside the cricothyroid and cricoarytenoid joints.
  • (8) In the parotid glands numerous adrenergic and cholinergic axons are found beneath the basement membrane of acini and intercalary ducts in intimate association with the cells.
  • (9) To analyze muscarinic receptors on rat pancreatic acini, we studied the binding of 125I-quinuclidinyl benzilate (125I-QNB) and N-[3H]-methylscopolamine ([3H]-NMS) to these acini.
  • (10) The compounds were tested for their antimuscarinic activities by: (a) inhibition of [N-methyl-3H]scopolamine binding to the muscarinic receptors of N4TG1 neuroblastoma cells, (b) inhibition of carbachol-induced alpha-amylase release from rat pancreas acini, and (c) blocking of acetylcholine-induced contraction of guinea pig ileum.
  • (11) The treatment resulted in a definitive reduction of mucosal thickness, and in a numerically significant loss of vessels and glandular acini.
  • (12) The extent to which protein secretion from these cells occurs in a regulated fashion was examined in experiments on secretory acini isolated from the mammary glands of lactating mice at 10 d postpartum.
  • (13) All areas of apocrine metaplasia were positive, as well as a few normal ducts and acini and occasional areas of adenosis.
  • (14) The degree of activation of the enzymes acetyl-CoA carboxylase and glycogen phosphorylase in extracts of mammary tissue and of acini was assessed as a function of these treatments.
  • (15) We examined the effect of cholecystokinin (CCK) on the receptors for vasoactive intestinal peptide (VIP) and secretin in rat pancreatic acini.
  • (16) When the RNAs extracted from control acini and acini treated with 100 nM insulin were translated in vitro, the proteins synthesized were quantitatively similar.
  • (17) At the stages 54-56, an increasing number of acini surrounded both by A and B cells was observed.
  • (18) All five phospholipases efficiently stimulated amylase release from dispersed rat pancreatic acini at pH 7.4, their potency decreasing as follows: Pa2 greater than Pa1 approximately equal to Pa4 greater than Pa3 approximately equal to Pa5.
  • (19) In parotid acini, microfilaments were predominantly localized at the luminal border when visualized with the fluorescent probe, rhodamine-phalloidin.
  • (20) Extension of main duct, smooth defect of posterior border of mandibular ramus, posterior displace of styloid process, and filling defect of branch ducts and acini in the pterygomandibular space were seen in deep lobe parotid tumors.

Alveoli


Definition:

  • (pl. ) of Alveolus

Example Sentences:

  • (1) Alveoli underlying the plasma membrane sometimes contain binding sites, particularly on their outer membranes.
  • (2) These changes led to a flooding of the alveoli with up to 40 times normal protein levels and a greater than fivefold increase in airway antiproteinase.
  • (3) This suggests that the curvature of the xenon clearance curve is the result of recording the summation of the activities from the alveoli and the pulmonary blood and not, as previously described, due to the existence of two different sub-populations of alveoli.
  • (4) At 1 week after infection, mycoplasma cells were found in large numbers in the bronchi at the surface of bronchial epithelial cells and, in smaller numbers, in the alveoli where active phagocytosis by polymorphonuclear leukocytes (PMN) occurred.
  • (5) Within the lung, deposition favored the inner zone (assumed to contain the larger airways) over the outer zone (assumed to be dominated by smaller airways and alveoli).
  • (6) The interstitium between alveoli is invaded with lymphocytes, macrophages, plasma cells and fibroblasts.
  • (7) An automatic image analyser was used to monitor pathological changes in morphological structure, especially the size and distribution of collagen fibres, the thickness of the septa and the diameters of alveoli in the lung.
  • (8) These convective streaming motions combine with molecular diffusion to produce augmented diffusion which transports O2 and CO2 between the trachea and the peripheral alveoli.
  • (9) The expression of WAP appears to be dependent upon the formation of the alveoli-like spheres: prevention of sphere formation by fixation or drying of the matrix abolishes the expression of WAP.
  • (10) The aim of this study was to investigate the possibility of determination of lung changes in congenital deformity of heart and vessels by the method of Weibel and Elias (1967) for count of points in the lung (volume of alveoli and interstitium).
  • (11) Free filoviral particles were seen in pulmonary alveoli and renal tubular lumina, which correlates with epidemiological evidence of droplet and fomite transmission.
  • (12) These data show that alveoli do not experience the same large swings in pressure as the proximal airway does during liquid breathing and that simple measurements of mPaw can be used to approximate mPA during liquid breathing.
  • (13) It was hypothesized that pathogenic Pasteurella spp and other microorganisms in nasal secretions transfer from the nasopharynx into the lungs by draining along the tracheal floor into ventral bronchi, bronchioles, and alveoli, and that pasteurella endotoxin, formed in infected lobules, thromboses and occludes lymphatics, capillaries, and veins and thereby causes ischemic necrosis.
  • (14) We measured pressure excursions at the airway opening and at the alveoli (PA) as well as measured the regional distribution of PA during forced oscillations of six excised dog lungs while frequency (f[2-32 Hz]), tidal volume (VT [5-80 ml]), and mean transpulmonary pressure (PL [25, 10, and 6 cm H2O]) were varied.
  • (15) After inhalation, the radioactive particles adhere to the walls of the respiratory bronchioli and alveoli.
  • (16) It is divided into longitudinal zones of arterial distribution; it is broken along primary septal margins into primary alveolar units; within alveoli, it is functionally divided by distortion over circum-alveolar smooth muscle bundles.
  • (17) Because maximum expiratory flow-volume rates in normal subjects are dependent on gas density, the resistance between alveoli and the point at which dynamic compression begins (R(us)) is mostly due to convective acceleration and turbulence.
  • (18) The air and fluid collection develops between two layers of the pulmonary ligament following trauma to the lung and rupture of alveoli adjacent to the pulmonary ligament.
  • (19) The alveolar walls showed variable degrees of thickening and fibrosis, intimal proliferation of alveolar capillaries, and "epithelialization" of alveoli.
  • (20) They provide a monomolecular lipid film of dipalmitoyl phosphatidylcholine (DPPC) on the surface of lung alveoli to lower surface tension necessary for optimal gas exchange and a hydrophobic protective lining against environmental influences.

Words possibly related to "acini"