The shoulder is a ball and socket joint with a large range of movement. Such a mobile joint tends to be more susceptible to injury. Shoulder pain can stem from one or more of the following causes: Strains from overexertion.
The gunwale (/ËÉ¡ÊnÉl/) is the top edge of the side of a boat. Originally the gunwale was the gun ridge on a sailing warship. This represented the strengthening wale or structural band added to the design of the ship, at and above the level of a gun deck.
Block - A pulley-like device used on a boat, with a sheave around which a line runs; see photo here of mainsheet block and tackle on a small boat. Boom - The (usually horizontal) spar back from the mast to which the foot of a sail is attached; see photo here.