prostomium
acron
The first body segment in annelids worms. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth.
| Type | Organ |
| Parent Structure | organismal segment |
| Latin Name | acron |
Frequently Asked Questions
What is the prostomium?
The first body segment in annelids worms. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth.
What is the Latin name for the prostomium?
The Latin name for the prostomium is acron.
Related Structures
1st arch mandibular component
ventral mandibular arch
1st arch mandibular ectoderm
ectoderm of mandibular component
1st arch mandibular mesenchyme
mandibular component mesenchyme
1st arch mandibular mesenchyme from head mesenchyme
1st arch mandibular mesenchyme from neural crest
1st arch maxillary component
1st arch maxillary ectoderm
ectoderm of maxillary component
1st arch maxillary-mandibular cleft
1st arch maxillary-mandibular groove ectoderm
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