The sarcoplasmic reticulum (SR) of skeletal muscle cells is a convoluted structure composed of a variety of tubules and cisternae, which share a continuous lumen delimited by a single continuous membrane, branching to form a network that surrounds each myofibril.
Percocet is the brand name for the drug combination of oxycodone hydrochloride and acetaminophen. It is classified as a semisynthetic pure opioid agonist medication used for relief of moderate to moderately severe pain.
Oxycodone vs. Percocet. Oxycodone is the generic name for the active ingredient in a painkiller; Percocet is a brand name for the combination of oxycodone with acetaminophen. Oxycodone and Percocet are both narcotic analgesics prescribed to relieve moderate to severe pain.