Foramen

In anatomy and osteology, a foramen (/fəˈrmən/;[1][2] pl.: foramina, /fəˈræmɪnə/ or foramens /fəˈrmənz/; from Latin 'an opening produced by boring') is an opening or enclosed gap within the dense connective tissue (bones and deep fasciae) of extant and extinct amniote animals, typically to allow passage of nerves, arteries, veins or other soft tissue structures (e.g. muscle tendon) from one body compartment to another.