Match each mammalian vertebral region listed on the left with its characteristic anatomical feature on the right.
- Cervical vertebraePresence of vertebrarterial canals in transverse processes
- Thoracic vertebraeLong, backward-pointing neural spines and rib articular facets
- Lumbar vertebraeLarge, massive centra with short, stout transverse processes
- Sacral vertebraeFusion into a solid bone structure articulating with the pelvic girdle
Cevap
Cervical vertebrae pair with the presence of vertebrarterial canals; Thoracic vertebrae pair with long, backward-pointing neural spines and rib articular facets; Lumbar vertebrae pair with large, massive centra; Sacral vertebrae pair with fusion into a solid bone structure articulating with the pelvic girdle.
Each vertebral region in mammals shows distinct structural specializations related to position and function: cervical vertebrae have transverse foramina for blood vessels, thoracic vertebrae support ribs with costal facets and prominent neural spines, lumbar vertebrae possess heavy centra for weight load, and sacral vertebrae are fused for rigid pelvic attachment.
Adım Adım Çözüm
Anahtar Kavram
Regional differentiation and structural adaptations of mammalian vertebrae