Erinaceus europaeus - West European Hedgehog: 1  0.3-0.5 mg/kg (300-500 Âµg/kg) intramuscularly. 2  1.0 mg/kg intramuscularly. 3  For reversal of medetomidine, equal volume to the volume of medetomidine used. 4  For reversal of xylazine 1 mg/kg (following anaesthesia using xylazine 1-2.5 mg/kg / ketamine 5-15 mg/kg.).
The pectoralis (pec) muscles are large, highly visible muscles located on each side of the chest. Their primary job is help the shoulders and arms move and lift. When you perform a push-up or chest fly, you are activating the pecs. Because they are among the strongest muscles in the body, they are less likely to be strained (pulled), but it can happen. Dave Cruz. Grade 1 strains involve a few torn muscle or tendon fibers.
Upper Versus Lower Pecs. The upper and lower pecs are simply different sides of the same muscle. The pectoralis major muscle is a wide, fan-like muscle that covers the upper rib cage and lung area. What is commonly understood as the lower pecs is the lower part of the pectoralis major. The pectoralis minor, while hidden beneath the major muscle, tightens the chest by supporting and firming the lower pecs.