Medically reviewed by Sameena Zahoor, MDMedically reviewed by Sameena Zahoor, MD The meninges of the brain and spinal cord are three layers of membranes: the dura mater, arachnoid mater ...

Within the human heart are numerous small muscle bundles called the trabeculae carneae. Despite their significance to the heart’s anatomy, their function is not well understood and most models of the ...