Functional groups are defined as specific groupings of atoms or bonds which are part of a larger hydrocarbon chain. It is necessary that you are able to recognize these groups by structure and by name. The ending of the name as a suffix tells the type of compound or functional group present.
a slight constriction of the aorta immediately distal to the left subclavian artery at the point of attachment of the ductus arteriosus. aortic isthmus. A constriction in the fetal aorta between the ductus arteriosus and the left subclavian artery. The condition sometimes persists into adulthood.
The sandy isthmus or tombolo connecting North and South Bruny Island in Tasmania, Australia. An isthmus (/ËÉªsÎ¸mÉs/ or /ËÉªsmÉs/ ; plural: isthmuses; from Ancient Greek: á¼°ÏÎ¸Î¼ÏÏ isthmos neck) is a narrow piece of land connecting two larger areas across an expanse of water that otherwise separates them.A tombolo is an isthmus that consists of a spit or bar. The central area of Kushimoto town in the Wakayama prefecture of Japan is located on a narrow isthmus, surrounded on both sides by the Pacific Ocean. 2  Metro Manila in the Philippines is situated on an isthmus.