Posterior Interosseous Nerve | Upper Limb Nerve Anatomy Simplified | Dr G Bhanu Prakash скачать в хорошем качестве

Posterior Interosseous Nerve | Upper Limb Nerve Anatomy Simplified | Dr G Bhanu Prakash

📌 𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:-   / drgbhanuprakash   📌𝗝𝗼𝗶𝗻 𝗢𝘂𝗿 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗖𝗵𝗮𝗻𝗻𝗲𝗹 𝗛𝗲𝗿𝗲:- https://t.me/bhanuprakashdr 📌𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗧𝗼 𝗠𝘆 𝗠𝗮𝗶𝗹𝗶𝗻𝗴 𝗟𝗶𝘀𝘁:- https://linktr.ee/DrGBhanuprakash Posterior Interosseous Nerve | Upper Limb Nerve Anatomy Simplified | Dr G Bhanu Prakash The posterior interosseous nerve (PIN) is the deep motor branch of the radial nerve, originating in the cubital fossa just after the radial nerve passes the lateral epicondyle of the humerus. It enters the supinator canal by piercing the supinator muscle—a clinically significant site known as the Arcade of Frohse, which is the most common location for nerve entrapment. After passing through this arcade, the nerve continues into the posterior compartment of the forearm, traveling alongside the posterior interosseous artery. The PIN is a purely motor nerve with no cutaneous sensory distribution. It supplies all the extensor muscles of the forearm, except for brachioradialis, extensor carpi radialis longus (ECRL), and anconeus, which are innervated by the radial nerve itself. Functionally, it is responsible for extension of the fingers and thumb, and contributes to wrist extension indirectly. Clinically, posterior interosseous nerve palsy presents with finger drop (inability to extend fingers at the metacarpophalangeal joints) without sensory deficits or classic wrist drop—making it a unique diagnostic clue in neuromuscular evaluation. It can be compressed by repetitive supination-pronation movements, ganglion cysts, or radial head fractures. Mastering the course, muscular supply, and clinical features of this nerve is vital for MBBS, NEET PG, FMGE, and USMLE students, and this session by Dr. G Bhanu Prakash simplifies this high-yield topic with conceptual clarity and clinical correlation. 🧠💪📈 #PosteriorInterosseousNerve #RadialNerve #UpperLimbAnatomy #DrGBhanuPrakash #NEETPG #FMGE #USMLE #INICET #HighYieldAnatomy #NerveLesions #FingerDrop #ArcadeOfFrohse #MedicalEducation #MBBSAnatomy #ConceptualMedicine #WristDrop #SupinatorCanal #AnatomySimplified #ForearmMuscles #BrachialPlexus #Posteriorinterosseousnerve #anatomyofposteriorinterosseousnerve #radialnerve #anatomy #upperlimbnerves #upperlimbanatomy #medicalstudents #fmge #usmleprep #usmlepreparation #drgbhanuprakash #usmle #mbbslectures #nationalexitexam #medicalcollege #nationalexittest