The anterior median<unk>  of the<unk> <unk>  has an average depth of about 3 mm, but this is increased in the lower part of the<unk> <unk> . It contains a double fold of pia mater, and its floor is formed by a transverse band of white matter, the anterior white commissure, which is perforated by blood vessels on their way to or from the central part of the<unk> <unk> . The anterior median<unk>  provides a groove in which the anterior<unk>  artery sits. From here, it provides the anterior part of the<unk> <unk> . It is sourced from the segmental medullary arteries and the segmental<unk>  arteries which are sourced from the intercostal arteries. The anterior median<unk>  (AMF) may be identified on computerized tomography (CT) myelograms, but more commonly on magnetic resonance imaging (MRI) scans. The AMF has a characteristic appearance on MRI scans that differs from the MRI appearance of the central canal.
Anterior median fissure of spinal cord
Anterior median fissure of the medulla oblongata
Posterolateral sulcus of medulla oblongata
Paramedian pontine reticular formation
Posterior cord
Rostral ventrolateral medulla
Midbrain reticular formation
Horizontal fissure of cerebellum