Boatswain of the Royal Navy, c. 1820. The word boatswain has been in the English language since approximately 1450. It is derived from late Old English batswegen, from bat (boat) concatenated with Old Norse sveinn (swain), meaning a young man, apprentice, a follower, retainer or servant.
The talus bone (/ËteÉªlÉs/ ; Latin for ankle), astragalus /ÉËstraeÉ¡ÉlÉs/ , ÉËstrÃ¦É¡ÉlÉs or ankle bone is one of the group of foot bones known as the. Tarsus the tarsus forms the lower part of the ankle joint through its articulations with the lateral and medial malleoli of the two bones of the lower, leg the tibia and. fibula
Talus forms the link between foot and leg, through the ankle joint. It forms lower part of ankle joint by articulating with medial and lateral malleoli. The talus is second largest tarsal bone. Talus is unique because of two important features.First, its blood supply is retrograde and second, 70% of it is covered by articular cartilage.Although it is more or less irregular in shape but still it can be subdivided into three parts:head, neck and body.he talus is second largest tarsal bone. Talus is unique because of two important features. First, its blood supply is retrograde and second, 70% of it is covered by articular cartilage. Although it is more or less irregular in shape but still it can be subdivided into three parts:head, neck and body.