Lee Seaman

Teratology Terms: Skeletal

This is a partial list of terms used to describe skeletal aberrations and variations in fetal and newborn rodents. Please send corrections and additions to Lee Seaman. Thanks to Alasdair Morgan for coding this list.

• Skeletal Malformation/Variation Data
• Coronal suture, absent
• Coronal suture, enlarged
• Femur, bent
• Femur, short
• Fontanelle, anterior, enlarged
• Fontanelle, posterior, enlarged
• Fontanelle, small
• Forepaw, incomplete cartilage development
• Frontal bones, fused
• Hindpaw, incomplete cartilage development
• Ilium, short
• Ischium, short
• Mandible, short
• Metacarpals, fused
• Metacarpals, incomplete cartilage development
• Palatine, split
• Parietal bone, fused
• Radius, angulated
• Radius, bent
• Ribs, bifurcated
• Rib, branching of
• Ribs, cervical
• Ribs, defect of
• Ribs, lumbar
• Ribs, shortening of
• Ribs, absence of
• Ribs, fused
• Ribs, knobby
• Ribs, misshapened
• Sacral arches, absent
• Sacral arches, fused
• Sacral centra, absent
• Scapula, angulated
• Scapula, bent
• Sternabrae, splitting of
• Sternabrae, dislocation of
• Sternabrae, assymetry of
• 1st Sternebrae, asymmetrical
• 2nd Sternebrae, asymmetrical
• 3rd Sternebrae, asymmetrical
• 4th Sternebrae, asymmetrical
• 5th Sternebrae, asymmetrical
• 3rd Sternebrae, misaligned
• 4th Sternebrae, misaligned
• 6th Sternebrae, misshapened
• Thoracolumbar arches, fused
• Tibia, short
• Ulna, angulated
• Ulna, short
• Vertebrae, caudal, abnormal arrangement of
• Vertebrae, lumbar, decrease of number of
• Vertebral bodies, lumbar, dumbbell shape of
• Vertebral bodies, thoracic, splitting of
• Vertebral bodies, thoracic, hyperplasia of
• Verebral bodies, thoracic, dumbbell shape of
• Vertebral, absent caudal arches/centra
• Vertebral, shortening of cervical arch
• Vertebral, splitting of cervical arch
• Zygoma, misshapen