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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- Posterior parietal arteryArteria parietalis posteriorA cortical branch of the middle cerebral artery that runs up behind the postcentral sulcus to supply the posterior part of the parietal lobe.
- Posterior quadrangular lobuleLobulus quadrangularis posteriorA lobule on the upper surface of each cerebellar hemisphere, lying just behind the primary fissure at the front of the posterior lobe.
- Posterior segment of eyeballSegmentum posterius bulbi oculiThe rear and larger portion of the eyeball, behind the lens, containing the vitreous body and lined by the retina, choroid and sclera.
- Posterior septal branches of sphenopalatine arteryRami septales posteriores arteriae sphenopalatinaeThe terminal branches of the sphenopalatine artery that spread over the nasal septum, reaching forward to the incisive canal.
- Posterior superior alveolar arteryArteria alveolaris superior posteriorA maxillary artery branch that descends on the back of the maxilla to supply the upper back teeth, gums and maxillary sinus.
- Posterior temporal branchRamus temporalis posterior arteriae cerebri mediaeA cortical branch of the middle cerebral artery that runs back over the posterior temporal lobe from the lateral sulcus.
- Posterior transverse collateral sulcusA short, variable groove on the inferior surface of the occipital lobe, crossing the territory near the back end of the collateral sulcus.
- Pre-auricular nodesNodi preauricularesLymph nodes in front of the ear, just ahead of the tragus, lying on the parotid gland beside the superficial temporal vessels.
- Precentral gyrusGyrus precentralisThe convolution at the back of the frontal lobe, in front of the central sulcus, that holds the primary motor cortex.
- PrecuneusThe square-shaped area of parietal cortex on the inner surface of each hemisphere, just in front of the occipital cuneus.
- Prefrontal arteryArteria prefrontalisA cortical branch of the middle cerebral artery that climbs from the lateral sulcus onto the front of the frontal lobe.
- Procerus muscleMusculus procerusThe procerus is a small, pyramid-shaped muscle over the bridge of the nose that drags the skin between the brows down.
- Proximal lateral striate branchesSmall deep branches from the first part of the middle cerebral artery that supply the lentiform nucleus and internal capsule.
- Pterygospinous ligamentLigamentum pterygospinaleA small band in the deep face tying the sphenoid spine to the lateral pterygoid plate.
- PutamenThe large rounded outer nucleus of the basal ganglia, lying deep in each cerebral hemisphere between the external and internal capsules.
- Pyramid of medulla oblongataPyramis medullae oblongataeA paired ridge on the front of the medulla oblongata, carrying the descending corticospinal and corticobulbar fibres beside the midline.
- Pyramis of vermisPyramis vermisA part of the inferior vermis of the cerebellum, between the tuber above and the uvula below, flanked by the biventral lobules.
- Red nucleusNucleus ruberAn oval, pinkish nucleus in the tegmentum of the upper midbrain, a relay between cerebellum, motor cortex and spinal cord.
- RetinaThe thin, light-sensitive inner coat of the eyeball, lining the posterior segment and converting the focused image into signals carried by the optic nerve.
- Retromandibular veinVena retromandibularisA vein inside the parotid gland behind the jaw, formed by the temporal and maxillary veins and dividing near the jaw angle.
- Retropharyngeal nodesNodi retropharyngeiA few lymph nodes behind the upper pharynx, in front of the atlas, draining the nose, nasopharynx and auditory tubes.
- Risorius muscleMusculus risoriusThe risorius is a thin, variable cheek muscle running from the parotid fascia to the mouth's corner, which it draws sideways.
- ScleraThe tough, opaque white outer coat covering the back five-sixths of the eyeball, continuous with the cornea in front and the optic nerve sheath behind.
- Sensory root of trigeminal nerveRadix sensoria nervi trigeminiThe large sensory root of the fifth cranial nerve, running from the trigeminal ganglion into the side of the pons.