The venous sinuses are located between the layers of the dura mater. They open up between the endosteal layer and the meningeal layer of the dura mater. They are lined by endothelium but unlike veins they contain no valves. Notice the arachnoid granulatio
Morning. My name's @snackophagus but you can call me Chris. Today I'm taking over the @visit Liverpool_ Instagram to share some pictures of our lovely city with you and hopefully brighten up your Monday a little bit -- but just a bit, it is still Monday a