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.
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- Paracentral sulcusSulcus paracentralisA short groove on the medial surface of the cerebral hemisphere that marks the front edge of the paracentral lobule.
- Parietal boneOs parietaleOne of a pair of curved, four-sided bones that make up most of the roof and side walls of the skull.
- Parietal branches of middle cerebral arteryRami parietales arteriae cerebri mediaeCortical branches of the middle cerebral artery that emerge from the lateral sulcus to supply the lateral surface of the parietal lobe.
- Parieto-occipital arteryArteria paritooccipitaleA cortical branch of the medial occipital artery that runs in the parieto-occipital sulcus on the medial surface of the hemisphere.
- 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.
- Pericallosal arteryArteria pericallosaThe continuation of the anterior cerebral artery that runs backwards over the corpus callosum on the medial surface of the hemisphere.
- PonsThe middle part of the brainstem, a broad bulge lying below the midbrain and above the medulla, with the cerebellum behind it.
- Postcentral arterial branchArteria sulci postcentralisA cortical branch of the middle cerebral artery that climbs in the postcentral sulcus to supply the postcentral gyrus and front of the parietal lobe.
- 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 auricular veinVena auricularis posteriorA scalp vein that descends behind the ear and joins the retromandibular vein to form the external jugular vein.
- Posterior cerebral arteryArteria cerebri posteriorA terminal branch of the basilar artery that curves round the midbrain to supply the occipital lobe, lower temporal lobe and thalamus.
- Posterior cochlear nucleusNucleus cochlearis posteriorThe layered auditory nucleus on the back and side of the inferior cerebellar peduncle where the pons and medulla meet.
- Posterior commissureCommissura posteriorA rounded band of crossing white fibres at the back of the third ventricle, just above the entrance to the cerebral aqueduct.
- Posterior communicating arteryArteria communicans posteriorA short artery beneath the brain linking the internal carotid artery to the posterior cerebral artery in the circle of Willis.
- Posterior deep temporal arteryArteria temporalis profunda posteriorA branch of the maxillary artery that ascends in the temporal fossa, deep to temporalis, to supply the back of that muscle.
- Posterior division of mandibular nerveDivisio posterior nervi mandibularisThe larger hind trunk of the mandibular nerve, mainly sensory, ending in three large nerves for the ear, tongue and lower teeth.
- Posterior division of retromandibular veinDivisio posterior venae retromandibularisThe backward branch of the retromandibular vein, which joins the posterior auricular vein below the ear to start the external jugular vein.
- Posterior ethmoidal arteryArteria ethmoidea posteriorA small ophthalmic branch that leaves the orbit through the posterior ethmoidal canal for the back ethmoidal cells, dura and septum.
- Posterior inferior cerebellar arteryArteria cerebelli inferior posteriorThe biggest vertebral artery branch, winding round the medulla to supply the underside of the cerebellum and the lateral medulla.
- Posterior intercavernous sinusSinus intercavernosus posteriorA small dural venous sinus crossing the midline behind the pituitary gland, joining the two cavernous sinuses.
- Posterior lateral nasal branches of sphenopalatine artery.Arteriae nasales posteriores lateralesBranches of the sphenopalatine artery that spread over the conchae and meatuses on the lateral wall of the posterior nasal cavity.
- Posterior nucleus of vagus nerveNucleus posterior nervi vagiThe main parasympathetic nucleus of the vagus nerve, lying in the medulla beneath the fourth ventricle and serving the gut and lungs.