strobila การใช้

• The strobila starts with short, narrow proglottids, followed with mature ones.
• Almost all members, except members of the orders Caryophyllidea and Spathebothriidea, are strobila.
• These break off from the main portion, the strobila, and deteriorate releasing eggs.
• Individual segments in the strobila are called'proglottids'and are entirely covered with hair-like microtriches.
• The most posterior section of the cestode body consists of multiple strobila, each being made up of several proglottids.
• As such, the main and largest section of the body, the strobila, consists of a chain of increasingly mature proglottids.
• After the scolex has differentiated and matured in the larval stage, growth will stop until a vertebrate eats the intermediate host, and then the strobila develops.
• When a gravid proglottid that is distended with an embryo reaches the end of the strobila, it detaches and passes out of the host intact with feces, with or without some tissue degeneration.
• Once in the small intestine of the definitive host, the bladder is digested away, the scolex embeds itself into the intestinal wall, and the neck begins to bud off segments to form the strobila.
• The reproductive systems develop progressively along the differentiated proglottids of the strobila region, with each proglottid developing one or two sets of sexual organs that differentiate at different times in a species-specific pattern, usually male-first.