The Anthromica Library
The human body one structure at a time. Every page has a 3D model you can turn, with its parts numbered on it, where it sits, what it does and what supplies it.
49–72 of 122 · Brain and spinal cordClear filters
- Lateral spinothalamic tractTractus spinothalamicus lateralisThe main pain and temperature pathway of the spinal cord, ascending in the lateral funiculus from the opposite side of the body to the thalamus.
- Lateral ventricleVentriculus lateralisThe large, C-shaped cavity inside each cerebral hemisphere, filled with cerebrospinal fluid and opening into the third ventricle.
- Lentiform nucleusNucleus lentiformisA lens-shaped mass of grey matter deep in each cerebral hemisphere, made of the putamen and globus pallidus, beside the internal capsule.
- Lingual gyrusGyrus lingualisA tongue-shaped gyrus on the medial and lower surface of the occipital lobe, lying between the calcarine and collateral sulci.
- Lingula of cerebellumLingula cerebelliThe small, tongue-shaped front lobule of the superior vermis, lying on the superior medullary velum above the fourth ventricle.
- Lunate sulcusA crescent-shaped groove on the lateral occipital lobe, variably present in humans, that in apes marks the front border of the primary visual cortex.
- Mamillary bodyCorpus mammillareOne of a pair of small round swellings on the underside of the hypothalamus, a relay of the memory circuit between hippocampus and thalamus.
- Medial geniculate bodyCorpus geniculatum medialeA small swelling on the underside of the back of the thalamus that relays hearing from the inferior colliculus to the auditory cortex.
- Medulla oblongataThe lowest part of the brainstem, a tapering column between the pons and the spinal cord that holds vital centres for breathing and circulation.
- MidbrainMesencephalonThe short, uppermost part of the brainstem, between the diencephalon above and the pons below, carrying the cerebral aqueduct.
- Middle frontal gyrusGyrus frontalis mediusThe broad middle band of the three horizontal gyri on the lateral surface of the frontal lobe, between the superior and inferior frontal sulci.
- Middle temporal gyrusGyrus temporalis mediusThe middle of the three long gyri on the lateral surface of the temporal lobe, between the superior and inferior temporal sulci.
- Nodule of vermisNodulus vermisThe front end of the inferior vermis, jutting into the fourth ventricle's roof and forming the midline part of the flocculonodular lobe.
- Nucleus ambiguusA column of motor neurons deep in the lateral medulla that drives the muscles of the palate, pharynx and larynx and slows the heart.
- Nucleus of solitary tractNucleus tractus solitariiA long sensory nucleus in the dorsal medulla that receives taste and visceral information through the seventh, ninth and tenth cranial nerves.
- Nucleus propriusA layer of grey matter in the head of the posterior horn, just deep to the substantia gelatinosa, made up of Rexed laminae III and IV.
- Occipital polePolus occipitalisThe rounded rear tip of each cerebral hemisphere, at the back end of the occipital lobe above the tentorium cerebelli.
- Olfactory sulcusSulcus olfactoriusA straight groove on the underside of each frontal lobe, parallel to the midline, in which the olfactory bulb and tract lie.
- OliveOlivaAn oval swelling on the front of the medulla oblongata, beside the pyramid, produced by the inferior olivary nucleus beneath it.
- Opercular part of inferior frontal gyrusPars opercularis gyri frontalis inferiorisThe hindmost section of the inferior frontal gyrus, lying in front of the precentral gyrus and covering part of the insula.
- Optic chiasmChiasma opticumThe X-shaped junction below the hypothalamus where the two optic nerves meet and their nasal fibres cross to the opposite side.
- Optic tractTractus opticusThe band of visual fibres running back from the optic chiasm round the cerebral peduncle to the lateral geniculate body.
- Orbital gyriGyri orbitalesThe four gyri on the concave underside of the frontal lobe, arranged around an H-shaped orbital sulcus above the roof of the orbit.
- Orbital part of inferior frontal gyrusThe front and lowest section of the inferior frontal gyrus, lying below the anterior limb of the lateral sulcus and curving onto the orbital surface.