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Hexacanth reaches...

Hexacanth reaches

A

Voluntary mucles

B

Involunarty muscles

C

Cardiac muscles

D

none of the above

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Hexacanth**: The hexacanth is the larval stage of the pork tapeworm (Taenia solium). It is important to recognize that this larval form is associated with the life cycle of the tapeworm. 2. **Life Cycle of Pork Tapeworm**: The pork tapeworm is an endoparasite that primarily resides in the intestines of humans. The lifecycle begins when pigs consume food contaminated with human feces containing onchospheres (the larval form of the tapeworm). 3. **Release of Hexacanth**: Once ingested by pigs, the onchospheres are released in the pig's intestine when the outer shell dissolves. This process is facilitated by bile salts. 4. **Migration through the Body**: After being liberated in the intestine, the hexacanth larva migrates into the hepatic portal vein, which transports it to the liver. 5. **Reaching the Heart**: From the liver, the hexacanth continues its journey to the heart via the postcaval vein. 6. **Final Destination**: The hexacanth ultimately reaches the voluntary muscles of the pig. These muscles include the tongue, limbs, neck, and elbows, which are the preferred sites for the larva to settle. 7. **Development into Cysticercus**: Once in the voluntary muscles, the hexacanth loses its hooks and develops into cysticercus larvae, which is the next stage in the tapeworm's life cycle. 8. **Conclusion**: Based on the information provided, the correct answer to the question "Hexacanth reaches" is **voluntary muscles**. ---
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