liver acinus

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• hepatic acinus — liver acinus, acinus of liver a functional unit of the liver, smaller than a portal lobule, being a diamond shaped mass of liver parenchyma surrounding a portal tract. Liver acinus: hepatic lobules are represented by hexagons (solid lines); liver …   Medical dictionary

• acinus — One of the minute grape shaped secretory portions of an acinous gland. Some authorities use the terms a. and alveolus interchangeably, whereas others differentiate them by the constricted openings of the a. into the excretory duct. [L. berry,… …   Medical dictionary

• Acinus — Infobox Anatomy Name = Acinus Latin = GraySubject = GrayPage = Caption = Illustrated section of pancreas of dog. X 250. (Alveolus labeled at center top.) Caption2 = Centroacinar cells System = MeshName = MeshNumber = DorlandsPre = DorlandsSuf =… …   Wikipedia

• lobuli hepatis — [TA] hepatic lobules: the small vascular units composing the substance of the liver, each of which is polygonal, with a central vein at its center and portal canals peripherally at the corners. See also liver acinus, under acinus, and see… …   Medical dictionary

• hepatic cell — n HEPATOCYTE * * * one of the polyhedral epithelial cells that constitute the substance of a liver acinus; called also hepatocyte, liver c., and parenchymal hepatic c …   Medical dictionary

• portal lobule — a polygonal mass of liver tissue, larger than a liver acinus, containing portions of three adjacent hepatic lobules, and having a portal vein at its center and a central vein peripherally at each corner. Diagram of hepatic (solid lines) and… …   Medical dictionary

• lobule — A small lobe or subdivision of a lobe. SYN: lobulus [TA]. ala central l. [TA] SYN: wing of central l.. SYN: pars inferior alae lobuli centralis [TA], pars superior ali lobuli centralis [TA]. ansiform l. comprises the greater part of the …   Medical dictionary

• respiratory disease — ▪ human disease Introduction  any of the diseases and disorders that affect human respiration (respiration, human).  Diseases of the respiratory system may affect any of the structures and organs that have to do with breathing, including the… …   Universalium

• Emphysema — For the condition describing air trapped under the skin, see subcutaneous emphysema. Emphysema Classification and external resources A lateral chest x ray of a person with emphysema. Note the barrel chest and flat diaphragm …   Wikipedia

• Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …   Medical dictionary

• Exocrine pancreas — The exocrine pancreas has ducts that are arranged in clusters called acini (singular acinus ). Pancreatic secretions are secreted into the lumen of the acinus, and then accumulate in intralobular ducts that drain to the main pancreatic duct,… …   Wikipedia