sulcus longitudinalis
In a fused radio-ulna, longitudinal furrow that demarcates the area of fusion of both elements. This sulcus is deep in the distal portion of the compound bone, but barely evident or absent at the proximal end.
| Type | Bone |
| Parent Structure | organ part |
Frequently Asked Questions
What is the sulcus longitudinalis?
In a fused radio-ulna, longitudinal furrow that demarcates the area of fusion of both elements. This sulcus is deep in the distal portion of the compound bone, but barely evident or absent at the proximal end.
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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