Prosencephalon. Forebrains . Forebrain . The anterior of the three primitive cerebral vesicles of the embryonic brain arising from the NEURAL TUBE. It subdivides to form DIENCEPHALON and TELENCEPHALON. (Stedmans Medical Dictionary, 27th ed) . 1.00
Brain. Encephalon . Brains . Encephalons . The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. . 0.63
Mesencephalon. Mesencephalons . Midbrains . Midbrain . The middle of the three primitive cerebral vesicles of the embryonic brain. Without further subdivision, midbrain develops into a short, constricted portion connecting the PONS and the DIENCEPHALON. Midbrain contains two major parts, the dorsal TECTUM MESENCEPHALI and the ventral TEGMENTUM MESENCEPHALI, housing components of auditory, visual, and other sensorimoter systems. . 0.63
Cerebellum. Corpus Cerebelli . Parencephalon . Cerebelli, Corpus . Cerebellums . Cerebellus, Corpus . Corpus Cerebellus . Parencephalons . The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills. . 0.61
Anencephaly. Absence of Brain, Congenital . Anencephalia . Anencephalus . Congenital Absence of Brain . Hemicranial Anencephaly . Incomplete Anencephaly . Partial Anencephaly . Anencephalias . Anencephalies, Partial . Anencephaly, Hemicranial . Anencephaly, Incomplete . Anencephaly, Partial . Aprosencephalies . Brain Congenital Absence . Partial Anencephalies . Aprosencephaly . A malformation of the nervous system caused by failure of the anterior neuropore to close. Infants are born with intact spinal cords, cerebellums, and brainstems, but lack formation of neural structures above this level. The skull is only partially formed but the eyes are usually normal. This condition may be associated with folate deficiency. Affected infants are only capable of primitive (brain stem) reflexes and usually do not survive for more than two weeks. (From Menkes, Textbook of Child Neurology, 5th ed, p247) . 0.60