Name a part of the human brain

The rarest possible answer — almost no player finds it.

• Area postrema— Left outside the blood-brain barrier to taste poison and trigger vomiting.

Genuinely obscure. Most players never think of it.

• Abducens nucleus
• Accessory basal nucleus
• Adenohypophysis
• Agranular cortex
• Agranular insula
• Ala of the central lobule
• Allocortex
• Alveus
• Ambient cistern
• Amiculum of the inferior olive
• Amygdalofugal pathway
• Angular bundle
• Angular gyrus
• Ansa lenticularis
• Anterior amygdaloid area
• Anterior cingulate cortex
• Anterior commissure
• Anterior horn of the lateral ventricle
• Anterior hypothalamic nucleus
• Anterior limb of the internal capsule
• Anterior lobe of cerebellum
• Anterior nuclei of thalamus
• Anterior olfactory nucleus
• Anterior perforated substance
• Anterior prefrontal cortex
• Anterior pretectal nucleus
• Anterior temporal lobe
• Anterodorsal nucleus
• Anteromedial nucleus
• Anteroventral cochlear nucleus
• Anteroventral nucleus
• Apical dendrite
• Apneustic center
• Arachnoid granulation
• Arachnoid septum
• Arachnoid trabeculae
• Archicortex
• Arcuate fasciculus
• Arcuate nucleus
• Association cortex
• Atrium of the lateral ventricle
• Auditory association cortex
• Axon hillock
• Axon terminal
• Band of Baillarger
• Band of Giacomini
• Basal dendrite
• Basal forebrain
• Basal nucleus of the amygdala
• Basilar sulcus
• Basket cell
• Basolateral nucleus
• Basomedial nuclei
• Bed nucleus of the stria terminalis
• Bergmann glia
• Betz cell
• Binocular neurons
• Biventer lobule
• Body of lateral ventricle
• Body of the corpus callosum
• Bötzinger complex
• Brachium of the inferior colliculus
• Brachium of the superior colliculus
• Broca's fissure
• CA1
• CA2
• CA3
• Calamus scriptorius
• Calcar avis
• Calcarine sulcus
• Callosal sulcus
• Caudal anterior cingulate cortex
• Caudal linear nucleus
• Caudal ventrolateral medulla
• Caudate nucleus
• Cavum veli interpositi
• Cavum vergae
• Central gray of the rhombencephalon
• Central lateral nucleus
• Central lobule
• Central nucleus of the amygdala
• Central sulcus
• Central sulcus of the insula
• Central tegmental tract
• Centromedial nucleus
• Centromedian nucleus
• Centrum semiovale
• Cerebellar cortex
• Cerebellar hemisphere
• Cerebellar peduncle
• Cerebellar tonsil
• Cerebellar white matter
• Cerebellopontine cistern
• Cerebral aqueduct
• Cerebral peduncle
• Cerebral white matter
• Cerebrocerebellum
• Chandelier cell
• Chiasmatic cistern
• Choroid fissure
• Choroid plexus
• Cingulate cortex
• Cingulate sulcus
• Cingulum
• Circular sulcus of the insula
• Circumventricular organs
• Cistern of lamina terminalis
• Cistern of lateral cerebral fossa
• Cisterna magna
• Claustrum
• Climbing fiber
• Cochlear nuclei
• Collateral eminence
• Collateral sulcus
• Colliculus facialis
• Columns of the fornix
• Commissure of the fornix
• Complex cell
• Cornu Ammonis
• Corona radiata
• Cortical column
• Cortical minicolumn
• Cortical nucleus of the amygdala
• Cortical plate
• Corticobulbar tract
• Corticomesencephalic tract
• Corticopontine fibers
• Corticospinal tract
• Crus cerebri
• Crus I
• Crus II
• Crus of the fornix
• Culmen
• Cuneate nucleus
• Cuneus
• Declive
• Decussatio pyramidum
• Deep cerebellar nuclei
• Dendritic spine
• Dentate gyrus
• Dentate nucleus
• Diagonal band of Broca.
• Diaphragma sellae
• Diencephalon
• Dorsal anterior cingulate cortex
• Dorsal cochlear nucleus
• Dorsal column nuclei
• Dorsal column-medial lemniscus pathway
• Dorsal longitudinal fasciculus
• Dorsal motor nucleus of vagus caudointermediate part
• Dorsal motor nucleus of vagus centrointermediate part
• Dorsal motor nucleus of vagus dorsointermediate part
• Dorsal motor nucleus of vagus dorsorostral part
• Dorsal motor nucleus of vagus medial fringe
• Dorsal motor nucleus of vagus rostrointermediate part
• Dorsal motor nucleus of vagus ventrointermediate part
• Dorsal motor nucleus of vagus ventrorostral part
• Dorsal nucleus of vagus nerve
• Dorsal paragigantocellular nucleus
• Dorsal posterior cingulate cortex
• Dorsal raphe nucleus
• Dorsal respiratory group
• Dorsal striatum
• Dorsal tegmental nucleus
• Dorsolateral prefrontal cortex
• Dorsomedial hypothalamic nucleus
• Dorsomedial prefrontal cortex
• Ectorhinal cortex
• Ectosplenial area
• Edinger-Westphal nucleus
• Emboliform nucleus
• Endopiriform nucleus
• Entorhinal cortex
• Ependyma
• Epithalamus
• Extended amygdala
• External capsule
• External globus pallidus
• External granular layer
• External pyramidal layer
• Extrapyramidal system
• Extrastriate cortex
• Extreme capsule
• Facial nucleus
• Falx cerebelli
• Falx cerebri
• Fañanás cell
• Fasciculus longitudinalis inferior
• Fasciculus occipitofrontalis
• Fastigial nucleus
• Fields of Forel
• Fifth Ventricle
• Fimbria
• Fimbriodentate sulcus
• Flocculonodular lobe
• Flocculus
• Folium vermis
• Forceps major
• Forceps minor
• Fork cell
• Fornix
• Fourth ventricle
• Frenulum veli
• Frontal eye fields
• Frontal operculum
• Frontal pole
• Frontopontine fibers
• Funiculus separans
• Fusiform gyrus
• Genu of the corpus callosum
• Gigantocellular reticular nucleus
• Globose nucleus
• Globus pallidus
• Glomus choroideum
• Golgi cell
• Gracile lobule
• Gracile nucleus
• Granular cortex
• Granular insular cortex
• Granular layer
• Granule cell
• Granule cell layer of the dentate gyrus
• Grid cell
• Gudden's commissure
• Gyrus ambiens
• Gyrus fasciolaris
• Gyrus rectus
• Habenula
• Habenular commissure
• Heterotypic cortex
• Hippocampal fissure
• Hippocampal formation
• Hippocampal-amygdaloid transition area
• Homotypic cortex
• Horizontal fissure of cerebellum
• Hypercomplex cell
• Hypoglossal nucleus
• Hypothalamic sulcus
• Incertohypothalamic pathway
• Indusium griseum
• Inferior cerebellar peduncle
• Inferior colliculus
• Inferior frontal gyrus
• Inferior frontal sulcus
• Inferior horn of the lateral ventricle
• Inferior occipital gyrus
• Inferior parietal lobule
• Inferior salivatory nucleus
• Inferior temporal gyrus
• Inferior temporal sulcus
• Inferior vestibular nucleus
• Infralimbic cortex
• Infundibular recess
• Infundibulum
• Inner band of Baillarger
• Insula
• Intercalated nucleus
• Interfascicular nucleus
• Intermediate progenitor cell
• Intermediate reticular nucleus
• Internal arcuate fibers
• Internal capsule
• Internal globus pallidus
• Internal granular layer
• Internal pyramidal layer
• Interneuron
• Interpeduncular cistern
• Interpeduncular fossa
• Interpeduncular nucleus
• Interposed nucleus
• Interstitial nucleus of Cajal
• Interstitiospinal tract
• Interventricular foramen
• Intralaminar nuclear group
• Intraparietal sulcus
• Islands of Calleja
• Isthmus of cingulate gyrus
• KNDy neuron
• Kölliker-Fuse nucleus
• Lamina terminalis
• Lateral aperture
• Lateral dorsal nucleus
• Lateral fissure
• Lateral geniculate nucleus
• Lateral hypothalamus
• Lateral intraparietal cortex
• Lateral lemniscus
• Lateral nuclear group
• Lateral nucleus of the amygdala
• Lateral occipital cortex
• Lateral occipital sulcus
• Lateral orbitofrontal cortex
• Lateral parabrachial nucleus
• Lateral posterior nucleus
• Lateral preoptic nucleus
• Lateral raphespinal tract
• Lateral recess
• Lateral superior olivary nucleus
• Lateral tuberal nuclei
• Lateral ventricle
• Lateral vestibular nucleus
• Lateral vestibulospinal tract
• Laterodorsal tegmental nucleus
• Lateroventral periolivary nucleus
• Lenticular fasciculus
• Lentiform nucleus
• Leptomeninges
• Limbic lobe
• Limen insulae
• Line of Gennari
• Lingual gyrus
• Lingula of cerebellum
• Locus coeruleus
• Long gyrus of the insula
• Longitudinal fissure
• Lugaro cell
• Lunate sulcus
• Mammillary body
• Mammillotegmental fasciculus
• Mammillothalamic tract
• Marginal sulcus
• Marginal zone
• Massa intermedia
• Matrix region of the rhombencephalon
• Meckel's cave
• Medial dorsal nucleus
• Medial eminence of floor of fourth ventricle
• Medial forebrain bundle
• Medial frontal gyrus
• Medial frontal sulcus
• Medial geniculate body
• Medial lemniscus
• Medial longitudinal fasciculus
• Medial nuclear group
• Medial nucleus of the trapezoid body
• Medial orbitofrontal cortex
• Medial parabrachial nucleus
• Medial preoptic nucleus
• Medial septal nuclei
• Medial superior olive
• Medial superior temporal area
• Medial temporal lobe
• Medial vestibular nucleus
• Medial vestibulospinal tract
• Median aperture
• Median eminence
• Median preoptic nucleus
• Median raphe nucleus
• Medioventral periolivary nucleus
• Medium spiny neuron
• Medullary pyramids
• Medullary striae of fourth ventricle
• Mesencephalic locomotor region
• Mesencephalic trigeminal nucleus
• Mesocortex
• Mesocortical pathway
• Mesolimbic pathway
• Metathalamus
• Metencephalon
• Meynert's cells
• Meynert's commissure
• Microglia
• Mid-fusiform sulcus
• Midbrain reticular formation
• Middle cerebellar peduncle
• Middle frontal gyrus
• Middle frontal sulcus
• Middle occipital gyrus
• Middle temporal gyrus
• Middle temporal sulcus
• Midline nuclear group
• Molecular layer
• Molecular layer of the cerebellum
• Molecular layer of the cerebral cortex
• Molecular layer of the dentate gyrus
• Molecular layer of the hippocampus
• Molecular layer of the subiculum
• Mossy fiber
• Motor neuron
• Motor trigeminal nucleus
• Mylohyoid subnuleus of the motor trigeminal nucleus
• Myoclonic triangle
• Neural stem cell
• Neurogliaform cell
• Neurohypophysis
• Neuropil
• NG2 glia
• Nigrostriatal pathway
• Nissl body
• Node of Ranvier
• Nodule of vermis
• Nonprimary motor cortex
• Nuclei of Gudden
• Nucleus ambiguus
• Nucleus basalis
• Nucleus incertus
• Nucleus of Darkschewitsch
• Nucleus of Perlia
• Nucleus of Roller
• Nucleus of the brachium of the inferior colliculus
• Nucleus of the solitary tract
• Nucleus para-ambiguus
• Nucleus paragigantocellularis
• Nucleus prepositus
• Nucleus retroambiguus
• Nucleus retrofacialis
• Nucleus reuniens
• Obex
• Occipital gyri
• Occipital pole
• Occipitotemporal sulcus
• Oculomotor nucleus
• Olfactory bulb
• Olfactory cortex
• Olfactory glomerulus
• Olfactory nerve
• Olfactory sulcus
• Olfactory tract
• Olfactory tubercle
• Oligodendrocyte
• Olivary body
• Olivocerebellar tract
• Olivospinal tract
• Operculum
• Optic chiasm
• Optic radiation
• Optic recess
• Optic tract
• Orbital gyri
• Orbital sulcus
• Orbitofrontal cortex
• Outer band of Baillarger
• Pacchionian foramen
• Paleocerebellum
• Paleocortex
• Pallidothalamic tracts
• Pallium
• Papez circuit
• Parabrachial nuclei
• Parabrachial pigmented nucleus
• Paracentral lobule
• Paracentral nucleus
• Paracentral sulcus
• Parafacial zone
• Parafascicular nucleus
• Parahippocampal gyrus
• Parainsular area
• Paralaminar nucleus
• Paralimbic cortex
• Parallel fiber
• Paramedian pontine reticular formation
• Paramedian raphe nucleus
• Paramedian reticular nucleus
• Paranigral nucleus
• Parasubiculum
• Paratenial nucleus
• Paraventricular nucleus
• Paravermis
• Paravestibular nucleus
• Parietal operculum
• Parieto-occipital sulcus
• Pars compacta
• Pars intermedia
• Pars opercularis
• Pars orbitalis
• Pars reticulata
• Pars triangularis
• Parvocellular reticular nucleus
• Pedunculopontine nucleus
• Perforant pathway
• Periallocortex
• Periamygdaloid cortex
• Periaqueductal gray
• Periarchicortex
• Pericalcarine cortex
• Pericallosal cistern
• Perihypoglossal nuclei
• Peripaleocortex
• Perirhinal cortex
• Periventricular nucleus
• Periventricular preoptic nucleus
• Pia mater
• Pineal recess
• Piriform cortex
• Place cell
• Planum polare
• Planum temporale
• Polymorphic layer
• Polymorphic layer of the dentate gyrus
• Pontine cistern
• Pontine micturition center
• Pontine nuclei
• Pontine respiratory group
• Pontine reticular nucleus caudal part
• Pontine reticular nucleus oral part
• Pontine tegmentum
• Postcalcarine sulcus
• Postcentral gyrus
• Postcentral sulcus
• Posterior cingulate cortex
• Posterior commissure
• Posterior external arcuate fibers
• Posterior horn of the lateral ventricle
• Posterior limb of the internal capsule
• Posterior lobe of cerebellum
• Posterior parietal cortex
• Posterodorsal raphe nucleus
• Posterodorsal tegmental nucleus
• Posterolateral fissure
• Posteroventral cochlear nucleus
• Pre-Bötzinger complex
• Precentral gyrus
• Precentral sulcus
• Precuneus
• Premotor cortex
• Preoccipital notch
• Preoptic area
• Presubiculum
• Pretectum
• Primary auditory cortex
• Primary fissure of cerebellum
• Primary gustatory cortex
• Primary motor cortex
• Primary somatosensory cortex
• Primary visual cortex
• Proisocortex
• Prosubiculum
• Pulvinar
• Purkinje cell
• Purkinje cell layer
• Putamen
• Pyramidal cell
• Pyramidal tract
• Pyramis
• Pyramis vermis.
• Quadrangular lobule
• Quadrigeminal cistern
• Radial glia
• Raphe magnus nucleus
• Raphe nuclei
• Raphe obscurus nucleus
• Raphe pallidus nucleus
• Raphe pontis nucleus
• Red nucleus
• Reticular activating system
• Reticular formation
• Reticulospinal tract
• Reticulotegmental nucleus
• Retinohypothalamic tract
• Retrosplenial cortex
• Retrosubicular area
• Retrotrapezoid nucleus
• Rhinal sulcus
• Rhinencephalon
• Rhomboid fossa
• Rhomboidal nucleus
• Rolandic operculum
• Rosehip neuron
• Rostral anterior cingulate cortex
• Rostral interstitial nucleus of medial longitudinal fasciculus
• Rostral linear nucleus of the raphe
• Rostral middle frontal gyrus
• Rostral ventrolateral medulla
• Rostromedial tegmental nucleus
• Rostrum of the corpus callosum
• Rubrospinal tract
• Secondary somatosensory cortex
• Secondary visual cortex
• Semilunar lobule
• Septal area
• Septum pellucidum
• Short gyri of insula
• Simple lobule
• Solitary nucleus commissural part
• Solitary nucleus dorsal part
• Solitary nucleus dorsolateral part
• Solitary nucleus gelatinous part
• Solitary nucleus intermediate part
• Solitary nucleus interstitial part
• Solitary nucleus medial part
• Solitary nucleus paracommissural part
• Solitary nucleus ventral part
• Solitary nucleus ventrolateral
• Solitary tract
• Somatosensory association cortex
• Somatosensory cortex
• Spinal trigeminal nucleus
• Spindle neuron
• Spino-olivary tract
• Spinocerebellar tract
• Spinomesencephalic tract
• Spinoreticular tract
• Spinothalamic tract
• Splenium
• Stellate cell
• Stratum lacunosum-moleculare
• Stratum lucidum
• Stratum oriens
• Stratum pyramidale
• Stratum radiatum
• Stria medullaris
• Stria terminalis
• Striatopallidal fibers
• Striatum
• Striosome
• Subarachnoid cisterns
• Subarachnoid space
• Subcallosal area
• Subcallosal gyrus
• Subcoeruleus nucleus
• Subcommissural organ
• Subdural space
• Subfornical organ
• Subgenual area
• Subgranular zone
• Subiculum
• Subparietal sulcus
• Subplate
• Substantia innominata
• Substantia nigra compact part dorsal tier
• Subthalamic nucleus
• Subthalamus
• Subventricular zone
• Sulcus limitans
• Sulcus of Jensen
• Superior cerebellar peduncle
• Superior colliculus
• Superior frontal gyrus
• Superior frontal sulcus
• Superior longitudinal fasciculus
• Superior occipital gyrus
• Superior olivary complex
• Superior paraolivary nucleus
• Superior parietal lobule
• Superior salivatory nucleus
• Superior temporal gyrus
• Superior temporal sulcus
• Superior vestibular nucleus
• Supplementary motor area
• Suprachiasmatic nucleus
• Supramarginal gyrus
• Supraoptic nucleus
• Suprapineal recess
• Synaptic cleft
• Synaptic vesicle
• Taenia of fourth ventricle
• Taenia thalami
• Tanycyte
• Tapetum
• Tectospinal tract
• Tectum
• Tegmentum
• Tela choroidea
• Temporal operculum
• Temporal pole
• Temporopontine fibers
• Tentorium cerebelli
• Thalamic reticular nucleus
• Thalamocortical radiations
• Third ventricle
• Transverse cerebral fissure
• Transverse occipital sulcus
• Transverse temporal gyrus
• Trapezoid body
• Trigonum habenulae
• Trigonum nervi hypoglossi
• Trigonum olfactorium
• Trochlear nucleus
• Tuber cinereum
• Tuber of vermis
• Tuberal region
• Tuberoinfundibular pathway
• Tuberomammillary nucleus
• Uncal sulcus
• Uncinate fasciculus
• Uncus
• Unipolar brush cell
• Uvula of cerebellum
• V3
• V4
• V5/MT
• Vagal trigone
• Vallecula of cerebellum
• Vascular organ of lamina terminalis
• Velum interpositum
• Velum medullare inferius
• Velum medullare superius
• Ventral anterior cingulate cortex
• Ventral anterior nucleus
• Ventral entorhinal cortex
• Ventral lateral nucleus
• Ventral nuclear group
• Ventral pallidum
• Ventral posterior cingulate cortex
• Ventral posterior lateral nucleus
• Ventral posterior medial nucleus
• Ventral posterior nucleus
• Ventral respiratory group
• Ventral striatum
• Ventral tegmental area
• Ventrolateral prefrontal cortex
• Ventromedial hypothalamic nucleus
• Ventromedial prefrontal cortex
• Vermis
• Vestibular cortex
• Vestibular nuclei
• Vestibulo-oculomotor fibers
• Vestibulocerebellar tract
• Vestibulospinal tract
• Von Monakow's nucleus
• Zona incerta
• Zona limitans intrathalamica

Uncommon — only a minority of players land here.

• Arachnoid mater
• Astrocyte
• Auditory cortex
• Axon
• Basal ganglia
• Broca's area
• Cell body
• Corpus callosum
• Dendrite
• Dura mater
• Forebrain
• Glia
• Hindbrain
• Limbic system
• Meninges
• Midbrain
• Mirror neuron
• Motor cortex
• Myelin
• Neocortex
• Nucleus accumbens
• Optic nerve
• Pineal gland
• Pituitary gland
• Pons
• Substantia nigra
• Synapse
• Ventricles
• Visual cortex
• Wernicke's area
• White matter

A solid, middling pick shared with plenty of other players.

• Amygdala
• Cerebral cortex
• Cerebral hemispheres
• Cerebrum
• Gray matter
• Hippocampus
• Hypothalamus
• Medulla oblongata
• Neuron
• Occipital lobe
• Parietal lobe
• Prefrontal cortex
• Temporal lobe
• Thalamus

The most common answer on the board.

• Brain stem
• Cerebellum
• Frontal lobe