This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Larvae of which of the following resides in the muscle? 
Select and explain. 
A. Trichenella, B. Asaris, C. Hook worm, D. Pin worm
A: Trichenella
Answer: A: Trichenella 
Explanation: Infection of Trichinella is initiated by ingestion of ble larvae in raw or undercooked meat. Digestive action liberates the larvae. The liberated larvae develop into adults in the duodenum and jejunum, where they mate and bear offspring. The adult worms are expelled in the stool. The newborn larvae penetrate the intestinal wall, enter the lymphatic system, and move the bloodstream to areas of implantation. The newborn larvae have been implicated in cardiac and neurologic trichinosis. The life cycle is completed with the larvae invading a striated muscle cell.