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 112 · Brain and spinal cord · HeadClear filters
- 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.
- 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.
- Paracentral sulcusSulcus paracentralisA short groove on the medial surface of the cerebral hemisphere that marks the front edge of the paracentral lobule.
- Parieto-occipital sulcusSulcus parietooccipitalisA deep cleft, mostly on the inner face of the hemisphere, that separates the parietal lobe from the occipital lobe.
- Peduncle of flocculusPedunculus flocculiThe thin stalk of white matter joining the flocculus on each side of the cerebellum to the nodule of the vermis.
- PonsThe middle part of the brainstem, a broad bulge lying below the midbrain and above the medulla, with the cerebellum behind it.
- Postcentral gyrusGyrus postcentralisThe convolution of the parietal lobe just behind the central sulcus, holding the primary somatosensory cortex for touch and body position.
- Postcentral sulcusSulcus postcentralisThe groove on the parietal lobe that runs behind and parallel to the central sulcus, forming the back edge of the postcentral gyrus.
- Posterior cochlear nucleusNucleus cochlearis posteriorThe layered auditory nucleus on the back and side of the inferior cerebellar peduncle where the pons and medulla meet.