rhinencephalonn.
/ˌrʌɪnɛnˈsɛfəlɒn/, /ˌrʌɪnɛnˈsɛfl̩ɒn/, /ˌrʌɪnɛnˈkɛfəlɒn/, /ˌrʌɪnɛnˈkɛfl̩ɒn/, U.S. /ˌraɪnənˈsɛfələn/ Anatomy and Zoology.
The part of the brain concerned with the sense of smell, receiving and processing olfactory stimuli.In humans, the rhinencephalon is now considered to consist chiefly of the olfactory bulb, peduncle, tubercle, and cortex, and the cortical nucleus of the amygdala, but originally included other areas of the brain, such as the hippocampus.
ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > lobe or lobule
nates?1545
lobe1672
testis1681
vermiform process1836
olfactory lobe1837
island of Reil1840
rhinencephalon1846
worm1857
precuneus1879
insula1886
vermis1890
tonsil1891
1846 R. Owen Hunterian Lect. II. viii. 184 The ‘rhinencephalon’ consists of two lobes of grey matter, which receive the prolongations of chiefly white fibres from the prosencephalon and its crura.
1870 G. Rolleston Forms Animal Life 41 The optic lobes..are,..like the prosencephalon and rhinencephalon, paired.
1899 T. C. Allbutt et al. Syst. Med. VI. 753 The great rhinencephalon of macrosmatic mammals.
1921 F. Tilney & H. A. Riley Form & Functions Central Nerv. Syst. xxxvi. 657 The mammalian rhinencephalon..consists of a primordial (sometimes called peripheral) and an archipallial (often referred to as central) portion.
1992 N.Y. Rev. Bks. 26 Mar. 62/2 The ‘smell brain’, or rhinencephalon..may not go through the complex, multistage memory systems of the medial temporal lobe.
2008 Clin. Dysmorphol. 17 145 She had protrusion of the forehead, with marked hypertelorism and absence of the nose but with the rhinencephalon present.
Derivatives
rhinenceˈphalic adj. relating to, connected with, or designating the rhinencephalon.
ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > lobe
rhinencephalic1846
postnasal1859
parietal1861
prefrontal1878
postrhinal1880
postfrontal1883
suboccipital1885
insular1886
transfrontal1889
preoptic1890
premotor1923
1846 R. Owen Hunterian Lect. II. viii. 181 A few of the medullary fibres..are continued forwards and outwards, as ‘rhinencephalic crura’.
1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) II. xxxix. 970/1 The cingulate gyrus and connected rhinencephalic regions, together with the diencephalon, receive baroreceptor and chemoreceptor projections.
2008 Neurosci. & Biobehavioral Rev. 32 985/1 Papez proposed a circuit of rhinencephalic and limbic pathways as being the anatomical basis of emotional experience and its expression through visceral and instinctive activities.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1846