The premiere source for ultrasound-guided regional anesthesia educational videos The BLOCKJOCKS app is presented by blockjocks.com, the premiere source for free and premium ultrasound-guided regional anesthesia educational videos. BLOCKJOCKS gives anesthesiologists, nurse anesthetists (CRNA), anesthesia residents, and medical students the tools they need to understand and perform simple and complex nerve block techniques to control pain and provide anesthesia and analgesia for orthopedic surger