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 ...
Like Christopher Columbus, Giovanni Cabotobetter known as John Cabotwas born in Genoa, Italy, yet made his voyage to the New World on behalf of another country. In the service of England, Cabot made the 1497 discovery of the large North Atlantic island that came to be known as Newfoundland. The first landing on the actual mainland of North America was made by Juan Ponce de Leon, who explored the eastern coastline of the Florida peninsula in 1513.