Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. In front of the optic chiasm

from The Century Dictionary and Cyclopedia

  • Anterior with respect to optic lobes; pregeminal: specifically noting the anterior pair of the optic lobes or corpora quadrigemina of the brain.

Etymologies

From pre- +‎ optic (Wiktionary)

Examples

  • GnRH1-producing neurons in regions of the brain known as the preoptic and hypothalamic regions in arrhinencephalic fetuses, whereas large numbers of these cells were present in control fetuses.

    EurekAlert! - Breaking News

  • Langub, MC, et al. Estrogen receptor immunoreactive glia, endothelia and ependyma in guinea pig preoptic area and median eminence: electron microscopy.

    T.S. Wiley: Estrogen Dilemma: There Is No Dilemma When You Know the Details

  • Jacobson, W, et al. Decreased in mediobasal hypothalamic and preoptic area opoid binding are associated with the progesterone-induced luteinizing hormone surge.

    T.S. Wiley: Estrogen Dilemma: There Is No Dilemma When You Know the Details

  • As a male neurologist, I can tell you that less than 0.25% of brain mass is sexually dimorphic hypothalamic preoptic area, ventromedial nucleus and supraoptic area and that is hypothalamic, related, so far as we know, to chemical and hormonal regulation.

    Percentage of Women on Physics Faculty by Country

  • There were also odd activity patterns in the medial preoptic area of the hypothalamus.

    Analog Science Fiction and Fact

  • Using this panic model, we previously showed that inhibiting the anterior third ventricle region (A3Vr; containing the organum vasculosum lamina terminalis, the median preoptic nucleus, and anteroventral periventricular nucleus) attenuates cardiorespiratory and behavioral responses elicited by i.v. infusions of NaLac.

    Naturejobs - All Jobs

  • The SuM appears to be functionally linked with the mesolimbic dopamine system and is closely connected with other brain structures that are implicated in motivational processes, including the prefrontal cortex, septal area, preoptic area, lateral hypothalamic area and dorsal raphe nucleus.

    BioMed Central - Latest articles

  • This manipulation also increased c-Fos expression in structures including the ventral tegmental area, medial shell of the nucleus accumbens, medial prefrontal cortex, septal area, preoptic area, lateral hypothalamic area and dorsal raphe nucleus.

    BioMed Central - Latest articles

  • Picrotoxin administration into the SuM appears to disinhibit local neurons and recruits activation of brain structures associated with motivational processes, including the mesolimbic dopamine system, prefrontal cortex, septal area, preoptic area, lateral hypothalamic area and dorsal raphe nucleus.

    BioMed Central - Latest articles

  • Using studies of embryonic mice, Corbin and his team located two specific pools of precursor cells marked by the transcription factor Dbx1 that migrate from both the ventral pallium and the preoptic area - a previously undiscovered pool of migratory cells - to create the requisite mix of excitatory and inhibitory neurons that ultimately comprise the amygdala.

    Medlogs - Recent stories

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.