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.
865–888 of 1303
- 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 cord of brachial plexusFasciculus posterior plexus brachialisThe cord of the brachial plexus behind the axillary artery, built from all three posterior divisions and giving the radial and axillary nerves.
- Posterior crico-arytenoid muscleMusculus cricoarytenoideus posteriorThe posterior crico-arytenoid is a fan-shaped laryngeal muscle on the back of the cricoid and the only one that opens the glottis.
- Posterior cruciate ligamentLigamentum decussatum posteriusThe stronger of the two cruciate ligaments, running from the back of the tibia up and forwards to the medial femoral condyle.
- 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 inferior trunk of brachial plexusDivisio posterior trunci inferioris plexus brachialisThe smaller, back-facing branch of the lower trunk of the brachial plexus, carrying C8 and T1 fibres into the posterior cord.
- Posterior division of internal iliac arteryDivisio posterior arteriae iliacae internaecusThe posterior trunk of the internal iliac artery, a short stem giving the iliolumbar, lateral sacral and superior gluteal arteries.
- 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 middle trunk of brachial plexusDivisio posterior trunci medii plexus brachialisThe back-facing branch of the middle trunk of the brachial plexus, carrying C7 fibres into the posterior cord.
- 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 division of superior trunk of brachial plexusDivisio posterior trunci superioris plexus brachialisThe back branch of the upper trunk of the brachial plexus, which joins the other posterior divisions behind the clavicle to form the posterior cord.
- 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 fasciculus propriusFasciculus proprius posteriorA thin layer of short intersegmental fibres in the deepest part of the posterior white column of the spinal cord, next to the posterior horn.
- Posterior femoral cutaneous nerveNervus cutaneus femoris posteriorA sensory branch of the sacral plexus that supplies the skin of the lower buttock, the back of the thigh and the upper calf.
- Posterior horn of spinal cordCornu posterius medullae spinalisThe rear, sensory projection of grey matter on each side of the spinal cord, where fibres from the dorsal roots arrive and relay.
- 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 intercostal arteriesArteriae intercostales posterioresPaired segmental arteries running in each intercostal space from behind, mostly straight from the thoracic aorta, beneath the lower edge of each rib.
- Posterior interosseous arteryArteria interossea posteriorThe artery of the back of the forearm, running between the superficial and deep extensor muscles from the elbow to the wrist.
- Posterior interosseous nerve of forearmNervus interosseus posterior antebrachiiThe motor nerve of the back of the forearm, carrying on from the deep radial branch to the extensor muscles.
- 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 leaflet of left atrioventricular valveCuspis posterior valvae atrioventricularis sinistraeThe shorter but wider-based of the two mitral valve leaflets, hanging from the back of the ring between left atrium and ventricle.
- Posterior ligament of fibular headLigamentum posterius capitis fibulaeA single thick band strengthening the back of the upper tibiofibular joint, deep to the popliteus tendon.