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.
Percocet contains two drugs, the generic names of which are acetaminophen and oxycodone, according to Drugs.com. The same drug combination is available under the brand names Endocet, Primley, Roxicet and Xartemis XR.