A diagram of part of a salivary gland showing a serous acinus and mixed serous-mucous acinus. Salivary glands are made up of secretory acini (acini-means a rounded secretory unit) and ducts. There are two types of secretions-serous and mucous.The acini can either be serous, mucous, or a mixture of serous and mucous.A serous acinus secretes proteins in an isotonic watery fluid. diagram of part of a salivary gland showing a serous acinus and mixed serous-mucous acinus. Salivary glands are made up of secretory acini (acini-means a rounded secretory unit) and ducts. There are two types of secretions-serous and mucous.
John Cabot (Italian: Giovanni Caboto, Venetian: Zuan Chabotto; c. 1450 â c. 1500) was a Venetian navigator and explorer whose 1497 discovery of the coast of North America under the commission of Henry VII of England is commonly held to have been the first European exploration of the mainland of North America since the Norse visits to Vinland in the ...
Greek scholars found a refuge in Venice after the Fall of Constantinople in 1453. John Cabot moved to Bristol, England, in the year 1480, when he was 30 years old. His dream of emulating Marco Polo and traveling to China was blocked by the Muslim Turkish conquest of Constantinople.