The Ulnar Nerve Review - Everything You Need To Know - Dr. Nabil Ebraheim скачать в хорошем качестве

The Ulnar Nerve Review - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim’s educational animated video describes a quick review anatomy of the Ulnar Nerve Distribution. The ulnar nerve runs from the brachial plexus to the upper arm, forearm, and hand. The ulnar nerve originates from the C8-T1 nerve roots, which form the medial cord of the brachial plexus. The ulnar nerve does not give branches to the axilla or the upper arm. It starts giving muscular and cutaneous branches in the upper forearm and hand. At the elbow, the ulnar passes behind the medial epicondyle. Just past the elbow, the nerve gives branches to the flexor carpi ulnaris and the medial half of the flexor digitorum profundus. In the forearm, the ulnar nerve divides into dorsal and palmar cutaneous branches. In the hand, the nerve further divides into superficial and deep branches. The superficial branch of the ulnar nerve divides into palmar digital nerves after it passes under and supplies the palmaris brevis muscle. The deep branch of the ulnar nerve innervates the three hypothenar muscles, the medial two lumbricals, the adductor pollicis and the deep head of the flexor pollicis brevis. The palmar cutaneous branch of the ulnar nerve provides sensation to the palm of the hand (the finger sensation is provided by the superficial branch). The dorsal cutaneous branch gives innervation to the medial dorsal aspect of the hand and the one and half fingers