page_title: Acicula
hierarchical_section_title: Acicula
caption_attribution_description: English: Microscope photograph of a parapodium from a specimen of Arctonoe sp. with chaetae and acicula labelled
context_page_description: Acicula are strong, stout internal chaetae that provide support to parapodia in polychaete annelids.
context_section_description: Acicula (singular: aciculum) are strong, stout internal chaetae that provide support to parapodia in polychaete annelids.
caption: Microscope photograph of a parapodium from a specimen of Arctonoe sp. showing the internal acicula that support the two lobes of the parapodium.
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