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vertebra    音標拼音: [v'ɚtəbrə]
n. 脊椎骨,椎骨

脊椎骨,椎骨

vertebra
n 1: one of the bony segments of the spinal column

Vertebra \Ver"te*bra\ (v[~e]r"t[-e]*br[.a]), n.; pl.
{Vertebrae}. [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 vertebrae are simple cartilaginous
disks or short cylinders, but in the higher vertebrates
they are composed of many parts, and the vertebrae 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 vertebrae 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 vertebrae are
specially designated: those vertebrae 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 vertebrae, twelve dorsal, five lumbar, five
sacral, and usually four, but sometimes five and rarely
three, coccygeal.
[1913 Webster]

2. (Zool.) One of the central ossicles in each joint of the
arms of an ophiuran.
[1913 Webster]
[1913 Webster]

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  • Vertebra - Wikipedia
    Each vertebra (pl : vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates The proportions of the vertebrae differ according to their spinal segment and the particular species
  • Vertebral Column Anatomy | Structure, Regions Function
    All vertebrae share a basic common structure They each consist of an anterior vertebral body, and a posterior vertebral arch The vertebral body forms the anterior part of each vertebrae
  • Vertebrae: The Bones of the Spinal Column - Spine Info
    The spinal column, also known as the backbone or vertebral column, is made up of 33 individual bones called vertebrae The vertebrae are stacked on top of each other and separated by intervertebral discs, which act as shock absorbers
  • Spine (Vertebral Column) – Bones, Anatomy, Labeled Diagram
    It comprises 33 small bones called vertebrae, which remain separated by cartilaginous intervertebral discs The vertebral column forms the axial skeleton, skull bones, ribs, and sternum The spine starts just below the occipital bone and extends up to the tip of the coccyx (tailbone)
  • Spinal Vertebrae Chart Image - Anatomy System
    The Atlas is the topmost vertebra, and along with C2, forms the joint connecting the skull and spine Fig 1 Lateral labeled diagram of the human vertebral spinal column showing vertebrae numbering order and the 5 different regions of the spine The Atlas is the topmost vertebra, and along with C2, forms the joint connecting the skull and spine
  • Vertebrae in the Vertebral Column - Spine-health
    Explore the importance of vertebrae in the vertebral column
  • Surface Anatomy of the Vertebral Column: Key Landmarks and Muscular . . .
    The surface anatomy of the vertebral column provides essential reference points for clinical examination and medical procedures Understanding the relationship between surface landmarks and underlying vertebral structures is crucial for healthcare professionals in various diagnostic and therapeutic interventions This posterior view illustration demonstrates key vertebral levels and their
  • Spine: Anatomy, Function, Parts, Segments Disorders
    Vertebrae: Your spine has 33 stacked vertebrae (small bones) that form the spinal canal The spinal canal is a tunnel that houses your spinal cord and nerves, protecting them from injury Most vertebrae move to allow for a range of motion The lowest vertebrae (sacrum and coccyx) are fused together and don’t move





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