| Library / English Dictionary |
MIDBRAIN
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The middle portion of the brain
Synonyms:
mesencephalon; midbrain
Classified under:
Hypernyms ("midbrain" is a kind of...):
neural structure (a structure that is part of the nervous system)
Meronyms (parts of "midbrain"):
locus niger; nucleus niger; substantia nigra (a layer of deeply pigmented grey matter in the midbrain; associated with the striate body; is involved in metabolic disturbances associated with Parkinson's disease and with Huntington's disease)
superior colliculus (an essential visual center between the retina and the striate cortex)
inferior colliculus (an essential auditory center in the midbrain)
Holonyms ("midbrain" is a part of...):
brain; encephalon (that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord)
Context examples:
The layer located below the cerebral cortex that includes the forebrain, midbrain and hindbrain.
(Cerebral Subcortex, NCI Thesaurus)
They form a large bundle of corticofugal fibers extending longitudinally on each side of the midline on the ventral surface of the midbrain.
(Crus Cerebri, NCI Thesaurus)
Scientists at the National Eye Institute (NEI) have found that neurons in the superior colliculus, an ancient midbrain structure found in all vertebrates, are key players in allowing us to detect visual objects and events.
(Researchers discover neural code that predicts behavior, National Institutes of Health)
Expressed as preproprotein in the midbrain, and at higher levels in the kidney, bone marrow, and prostate, by human GNRH2 Gene (GnRH Family), secreted decapeptide Gonadotropin Releasing Hormone 2 stimulates secretion of LHRH and FSH gonadotropins from anterior pituitary gonadotropes to control female reproduction.
(Gonadotropin Releasing Hormone 2, NCI Thesaurus)
Encoded by human FG8F Gene (FGF Family), alternative isoforms FGF-8A, FGF-8B, FGF-8E, and FGF-8F of secreted autocrine androgen-induced Fibroblast Growth Factor 8 may be involved in angiogenesis and/or act as an embryonic epithelial factor in midbrain and limb development, in organogenesis, in gastrulation, and in left-right axis determination.
(Fibroblast Growth Factor 8, NCI Thesaurus)
