Page 6 - SONO 260 The Fetal Head and Brain

Normal Fetal Skull and Brain Anatomy
¢The anterior fontanelle, when completely filled with bone, is referred to as the bregma, whereas the posterior fontanelle is referred to as the lambda.
¢The foramen magnum is the opening in the base of the cranium through which the spinal cord travels.
¢Midline fetal brain anatomy and those structures that lie on both sides of the midline should be routinely evaluated during an obstetric sonogram.