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Hasil cari dari kata atau frase: Vertebrae (0.00851 detik)
Found 2 items, similar to Vertebrae.
English → English (WordNet)
Definition: vertebrae
vertebra
n : one of the bony segments of the spinal column
[also:
vertebrae (pl)]
vertebrae
See
vertebra
English → English (gcide)
Definition: Vertebrae
Vertebra
\Ver"te*bra\, n.; pl.
Vertebr[ae]. [L. vertebra, fr.
vertere to turn, change. See
Verse.]
[1913 Webster]
1. (Anat.) One of the serial segments of the spinal column.
[1913 Webster]
Note: In many fishes the vertebr[ae] are simple cartilaginous
disks or short cylinders, but in the higher vertebrates
they are composed of many parts, and the vertebr[ae] in
different portions of the same column vary very
greatly. A well-developed vertebra usually consists of
a more or less cylindrical and solid body, or centrum,
which is surmounted dorsally by an arch, leaving an
opening which forms a part of the canal containing the
spinal cord. From this dorsal, or neural, arch spring
various processes, or apophyses, which have received
special names: a dorsal, or neural, spine, spinous
process, or neurapophysis, on the middle of the arch;
two anterior and two posterior articular processes, or
zygapophyses; and one or two transverse processes on
each side. In those vertebr[ae] which bear
well-developed ribs, a tubercle near the end of the rib
articulates at a tubercular facet on the transverse
process (diapophysis), while the end, or head, of the
rib articulates at a more ventral capitular facet which
is sometimes developed into a second, or ventral,
transverse process (parapophysis). In vertebrates with
well-developed hind limbs, the spinal column is divided
into five regions in each of which the vertebr[ae] are
specially designated: those vertebr[ae] in front of, or
anterior to, the first vertebra which bears ribs
connected with the sternum are cervical; all those
which bear ribs and are back of the cervicals are
dorsal; the one or more directly supporting the pelvis
are sacral and form the sacrum; those between the
sacral and dorsal are lumbar; and all those back of the
sacral are caudal, or coccygeal. In man there are seven
cervical vertebr[ae], twelve dorsal, five lumbar, five
sacral, and usually four, but sometimes five and rarely
three, coccygeal.
[1913 Webster]
2. (Zo["o]l.) One of the central ossicles in each joint of
the arms of an ophiuran.
[1913 Webster]
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