basilar vertebra

vertebra /ver·te·bra/ (ver´tĕ-brah) pl. ver´tebrae   [L.] any of the 33 bones of the vertebral (spinal) column, comprising 7 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 4 coccygeal vertebrae .ver´tebral

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basilar vertebra  the lowest lumbar vertebra.

cervical vertebrae  the seven vertebrae closest to the skull, constituting the skeleton of the neck. Symbols C1–C7.

coccygeal vertebrae  the three to five rudimentary segments of the vertebral column most distant from the skull, which fuse to form the coccyx.

cranial vertebrae  the segments of the skull and facial bones, regarded by some as modified vertebrae.

dorsal vertebrae  thoracic vertebrae.

false vertebrae  those vertebrae which normally fuse with adjoining segments; the sacral and coccygeal vertebrae.

lumbar vertebrae  the five segments of the vertebral column between the twelfth thoracic vertebra and the sacrum. Symbols L1–L5.

odontoid vertebra  the second cervical vertebra (axis).

vertebra pla´na  a condition of spondylitis in which the body of the vertebra is reduced to a sclerotic disk.

sacral vertebrae  the segments (usually five) below the lumbar vertebrae, which normally fuse to form the sacrum. Symbols S1–S5.

sternal vertebra  sternebra.

thoracic vertebrae  the 12 segments of the vertebral column between the cervical and the lumbar vertebrae, giving attachment to the ribs and forming part of the posterior wall of the thorax. Symbols T1–T12.

true vertebrae  those segments of the vertebral column that normally remain unfused throughout life: the cervical, thoracic, and lumbar vertebrae.

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basilar vertebra

n.

The lowest lumbar vertebra.

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basilar vertebra,

the lowest or last of the lumbar vertebrae.