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 ...
John Cabot (c. 1450, disappeared May 1498), born Giovanni Caboto, was a Venetian explorer and navigator known for his 1497 voyage to North America, where he claimed land in Canada for England. After setting sail in May 1498 for a return voyage to North America, Cabot's final days remain a mystery. What Did John Cabot Discover? In 1497 Cabot traveled by sea from Bristol to Canada, which he mistook for Asia. Cabot made a claim to the North American land for King Henry VII of England, setting the course for England's rise to power in the 16th and 17th centuries.