SQL Server distinguishes between 3 different types of latches: 1  IO Latches. 2  Buffer Latches (BUF) 3  Non-Buffer Latches (Non-BUF) Letâs have a more detailed look at these 3 different variations. I/O Latches are used by SQL Server when outstanding I/O operations against pages in the Buffer Pool are done â when you read and write from/to your storage subsystem.
The pharyngeal muscles are a group of muscles that act upon the pharynx. Pharyngeal muscles contracts pushing the food into the oesophagus.There are two muscular layers of the pharynx: the outer circular layer and the inner longitudinal layer.The outer circular layer includes: 1  Inferior constrictor muscle.2  Middle constrictor muscle.haryngeal muscles contracts pushing the food into the oesophagus. There are two muscular layers of the pharynx: the outer circular layer and the inner longitudinal layer. The outer circular layer includes: 1  Inferior constrictor muscle. 2  Middle constrictor muscle.
pharynx-. tubelike muscular organ that releases enzymes that begin digestion of prey tapeworms in freeliving organisms-food is then sucked into digestion tract-waste is also ejected through mouth-parasitic flatworms use hooks and suckers to feed.parasitic adapted to life in intestines of host-tapeworms-scolex proglottids-when eaten by cattle, tapeworms burrow through intestinal walls and enter blood and eventually muscle 0if this affected beef is enaten rare or undercooked, human is affected-not common in developed countries. î î î.