Scolex

Scolex is the anterior part of the body of a tapeworm, equipped with hooks, suckers, or both for attachment to the host organism. The scolex is often referred to as the "head" of the tapeworm, although it is more accurately described as the "attachment organ".

Anatomy

The scolex is the part of the tapeworm that is specialized for attachment to the host. It is typically equipped with one or more of the following structures: hooks, suckers, and rostellum. The number and arrangement of these structures can vary widely between different species of tapeworms.

Function

The primary function of the scolex is to anchor the tapeworm to the intestinal wall of the host organism. This is achieved through the use of the hooks and/or suckers, which can firmly attach to the host's tissues. Once attached, the tapeworm can begin to absorb nutrients from the host's digestive system through its body surface.

Development

The scolex develops from the oncosphere, which is the larval stage of the tapeworm. The oncosphere is ingested by the intermediate host and then develops into a cysticercus or hydatid cyst, which contains the developing scolex. When the cyst is ingested by the definitive host, the scolex emerges and attaches to the intestinal wall, and the rest of the tapeworm body (the strobila) begins to grow from it.

See also

• Tapeworm
• Cestoda
• Cysticercus
• Hydatid cyst
• Oncosphere

Scolex Resources
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