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  • Anatomy
  • During routine dissection in the Department of Anatomy following anatomical variations of phrenic nerve were observed on right side in the neck region of a 30 years old male cadaver. (indmedica.com)
  • Modern portable ultrasound devices allow the user to visualize internal anatomy, including the nerves to be blocked, neighboring anatomic structures and the needle as it approaches the nerves. (wikipedia.org)
  • injury
  • Similarly, patients should be questioned and examined carefully for evidence of preexisting neurologic dysfunction in the ipsilateral arm and hand, since perioperative nerve injury is possible due to surgical (e.g., traction) or anesthetic (e.g., related to the nerve block) causes. (oncologynurseadvisor.com)
  • Keeping the arm adducted during this step reduces risk of injury to the axillary sheath. (medscape.com)
  • Injury to the musculocutaneous nerve can be caused by three mechanisms: repeated microtrauma, indirect trauma or direct trauma on the nerve. (wikipedia.org)
  • In medicine, a stinger, also called a burner or nerve pinch injury, is a neurological injury suffered by athletes, mostly in high-contact sports such as ice hockey, rugby, American football, and wrestling. (wikipedia.org)
  • The most severe form of injury is nerve root avulsion, which usually accompanies high-velocity impacts that commonly occur during motor-vehicle collisions or bicycle accidents. (wikipedia.org)
  • The nerve is the largest unprotected nerve in the human body (meaning unprotected by muscle or bone), so injury is common. (wikipedia.org)
  • trauma
  • Repeated nerve trauma can cause recurring stingers, chronic pain, and muscle weakness, while recovery can take weeks to months in severe cases. (wikipedia.org)
  • anterior
  • Glenohumeral dislocation or proximal humeral fractures are likely to traumatize the nerve directly because of the traction during anterior dislocation. (clinicaladvisor.com)
  • From here, the accessory nerve courses through the posterior triangle of the neck to enter the anterior border of the trapezius muscle at a point located approximately at the junction of the middle and lower thirds of the anterior border of this muscle. (wikipedia.org)
  • The merged nerve divides into the anterior and posterior division of C5 and C6. (wikipedia.org)
  • The five roots are the five anterior rami of the spinal nerves, after they have given off their segmental supply to the muscles of the neck. (wikipedia.org)
  • This nerve innervates the serratus anterior, which draws the scapula laterally and is the prime mover in all forward-reaching and pushing actions. (wikipedia.org)
  • citation needed] The musculocutaneous nerve, from C5, C6, C7, is the main supplier of muscles of the anterior compartment. (wikipedia.org)
  • sensation
  • If the needle is close to or contacts a nerve, the subject may experience a paresthesia (a sudden tingling sensation, often described as feeling like "pins and needles" or like an electric shock) in the arm, hand, or fingers. (wikipedia.org)
  • 2. What nerve provides sensation to the dorsum of the hand? (varsitytutors.com)
  • peripheral
  • Commonly employed techniques for obtaining such a needle position include transarterial, elicitation of a paresthesia, and use of a peripheral nerve stimulator or a portable ultrasound scanning device. (wikipedia.org)
  • A peripheral nerve stimulator connected to an appropriate needle allows emission of electric current from the needle tip. (wikipedia.org)
  • The axillary nerve is one of the most common peripheral nerves injured in athletes who participate in contact sports. (clinicaladvisor.com)
  • Neurons are the core components of the brain, spinal cord, and peripheral nerves. (wikipedia.org)
  • fibers
  • The PNS consists mainly of nerves, which are long fibers that connect the CNS to every other part of the body. (wikipedia.org)
  • muscles
  • The dorsal scapular nerve comes from the superior trunk and innervates the rhomboid muscles which retract the scapula. (wikipedia.org)
  • A bony fragment, pseudoaneurysm, hematoma, or callus formation of fractured clavcile can also put pressure on the injured nerve, disrupting innervation of the muscles. (wikipedia.org)
  • The compartments contain muscles which are innervated by the same nerve and perform the same action. (wikipedia.org)
  • This nerve continues in the arm, travelling in a plane between the biceps and triceps muscles. (wikipedia.org)
  • brachial plexus
  • After skin and transducer preparation (see transducer preparation section), place a linear 38-mm, high frequency 10-12 MHz transducer firmly in the transverse plane along the axillary crease to obtain the best possible transverse view of the brachial plexus. (usra.ca)
  • anterior
  • This nerve innervates the serratus anterior, which draws the scapula laterally and is the prime mover in all forward-reaching and pushing actions. (wikipedia.org)
  • From here, the accessory nerve courses through the posterior triangle of the neck to enter the anterior border of the trapezius muscle at a point located approximately at the junction of the middle and lower thirds of the anterior border of this muscle. (wikipedia.org)
  • The merged nerve divides into the anterior and posterior division of C5 and C6. (wikipedia.org)
  • ultrasound
  • Commonly employed techniques for obtaining such a needle position include transarterial, elicitation of a paresthesia, and use of a peripheral nerve stimulator or a portable ultrasound scanning device. (wikipedia.org)
  • Modern portable ultrasound devices allow the user to visualize internal anatomy, including the nerves to be blocked, neighboring anatomic structures and the needle as it approaches the nerves. (wikipedia.org)
  • lesions
  • This fact is very important clinically as a fracture of the shaft of the bone here can cause lesions or even transections in the nerve. (wikipedia.org)
  • Neurolysis and nerve grafting are the treatment options for the above lesions. (wikipedia.org)
  • injury
  • Assessing injury to these nerves requires a high index of clinical suspicion based on injury/lacerations and clinical findings. (wustl.edu)
  • This is especially important for detecting digital nerve injury of the radial or ulnar digital nerve to the affected finger but not both. (wustl.edu)
  • The nerve is the largest unprotected nerve in the human body (meaning unprotected by muscle or bone), so injury is common. (wikipedia.org)
  • In medicine, a stinger, also called a burner or nerve pinch injury, is a neurological injury suffered by athletes, mostly in high-contact sports such as ice hockey, rugby, American football, and wrestling. (wikipedia.org)
  • Erb's palsy or Erb-Duchenne palsy is a paralysis of the arm caused by injury to the upper group of the arm's main nerves, specifically the severing of the upper trunk C5-C6 nerves. (wikipedia.org)
  • The most severe form of injury is nerve root avulsion, which usually accompanies high-velocity impacts that commonly occur during motor-vehicle collisions or bicycle accidents. (wikipedia.org)
  • Injury to the musculocutaneous nerve can be caused by three mechanisms: repeated microtrauma, indirect trauma or direct trauma on the nerve. (wikipedia.org)
  • fascia
  • It eventually pierces the crural fascia to become a superficial nerve distally. (usra.ca)
  • As the transducer moves distally, this small hyperechoic nerve is visualized first deep to the crural fascia and then subcutaneous after it pierces the fascia. (usra.ca)
  • fibers
  • The PNS consists mainly of nerves, which are long fibers that connect the CNS to every other part of the body. (wikipedia.org)
  • trauma
  • See above regarding the specific autonomous zone exam to detect individual radial or ulnar digital nerve injuries due to trauma to the fingers. (wustl.edu)
  • Repeated nerve trauma can cause recurring stingers, chronic pain, and muscle weakness, while recovery can take weeks to months in severe cases. (wikipedia.org)
  • Palmar
  • This nerve is directly connected to the little finger, and the adjacent half of the ring finger, innervating the palmar aspect of these fingers, including both front and back of the tips, perhaps as far back as the fingernail beds. (wikipedia.org)
  • distal
  • The distal phalanx level is not an autonomous zone because of overlap from the opposite normal digital nerve. (wustl.edu)
  • The point at which the axillary becomes the brachial is distal to the lower border of teres major. (wikipedia.org)
  • posteriorly
  • Posteriorly, they insert together at the apex on the tendineus anulus communis of Zinn, through which the optic nerve enters the orbit. (nysora.com)
  • The scleral portion of the globe is surrounded by Tenon's capsule, a fibroelastic layer stretching from the corneal limbus anteriorly to the optic nerve posteriorly. (nysora.com)