midline structures of the brain

corpus callosum

group of commissural fibres forming the primary connection between hemispheres

thalamus

central structure that acts as a relay station for numerous pathways

hypothalamus

structure immmediately below the thalamus, involved in homeostasis and endocrine functions

pituitary gland

structure at the end of the infundibulum that secretes many hormones

pineal gland

structure located immediately posterior to the midbrain colliculi, secretes melatonin

calcarine sulcus

sulcus of the ocipital lobe containing the primary visual cortex

limbic system

group of deep brain structures involved in learning, memory and emotional control

fornix

part of the limbic system, triangular area of white matter between the hippocampus and hypothalamus

mammillary bodies

round nucle at the anterior tip of the fornix, part of the limbic system

hippocampus

part of the temporal lobes and the limbic system, involved in converting short term to long term memory

parahippocampal gyri

gyri of the temporal cortices located next to the hippocampi, part of the limbic systm

cingulate gyrus and sulcs

large gyrus and associated sulcus located immediately superior to the corpus callosum, part of the limbic system

cingulum

group of association fibres travelling from th cingulate gyrus to other parts of the limbic system