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The base of the sacrum, which is broad and expanded, is directed upward and forward. This article or section may be confusing or unclear for some readers, and should be edited to rectify this. ...
Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ...
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In the middle is a large oval articular surface, the upper surface of the body of the first sacral vertebra, which is connected with the under surface of the body of the last lumbar vertebra by an intervertebral fibrocartilage. A typical lumbar vertebra The lumbar vertebrae are the largest segments of the movable part of the vertebral column, and can be distinguished by the absence of a foramen (hole) in the transverse process, and by the absence of facets on the sides of the body. ...
Cartilage is type of dense connective tissue. ...
Behind this is the large triangular orifice of the sacral canal, which is completed by the laminae and spinous process of the first sacral vertebra. Lamina may refer to: Planar lamina, a 2 dimensional planar closed surface with mass and density (mathematics). ...
A diagram of a thoracic vertebra. ...
The superior articular processes project from it on either side; they are oval, concave, directed backward and medialward, like the superior articular processes of a lumbar vertebra.
They are attached to the body of the first sacral vertebra and to the alae by short thick pedicles; on the upper surface of each pedicle is a vertebral notch, which forms the lower part of the foramen between the last lumbar and first sacral vertebrae.
On either side of the body is a large triangular surface, which supports the Psoas major and the lumbosacral trunk, and in the articulated pelvis is continuous with the iliac fossa. The psoas major is a muscle of the human abdomen. ...
This is called the ala; it is slightly concave from side to side, convex from before backward, and gives attachment to a few of the fibers of the Iliacus. Ala may refer to: Ala (mythology) in the Igbo mythology Ala (Roman military) American Library Association This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
The Iliacus muscle is a muscle of the human body. ...
The posterior fourth of the ala represents the transverse process, and its anterior three-fourths the costal process of the first sacral segment. A diagram of a thoracic vertebra. ...
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. eMedicine is an online clinical medical knowledge base that was founded in 1996. ...
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An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...
| Spine edit | | general structures: body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular, spinous) The vertebral column seen from the side Different regions (curvatures) of the vertebral column The vertebral column (backbone or spine) is a column of vertebrae situated in the dorsal aspect of the abdomen. ...
When the vertebrae are articulated with each other the bodies form a strong pillar for the support of the head and trunk, and the vertebral foramina constitute a canal for the protection of the medulla spinalis (spinal cord), while between every pair of vertebræ are two apertures, the intervertebral foramina...
The articular processes of a vertebra, two superior and two inferior, spring from the junctions of the pedicles and laminæ. The superior project upward, and their articular surfaces are directed more or less backward; the inferior project downward, and their surfaces look more or less forward. ...
A diagram of a thoracic vertebra. ...
cervical vertebrae: C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C7, posterior tubercle, foramen transversarium A cervical vertebra Cervical vertebrae (Vertebrae cervicales) are the smallest of the true vertebrae, and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process. ...
First cervical vertebra, or Atlas In anatomy, the Atlas (C1) is the topmost (first) cervical vertebra of the spine. ...
The anterior arch of the atlas forms about one-fifth of the ring of the atlas: its anterior surface is convex, and presents at its center the anterior tubercle for the attachment of the Longus colli muscles; posteriorly it is concave, and marked by a smooth, oval or circular facet...
In anatomy, the second cervical vertebra (C2) of the spine is named the axis or epistropheus. ...
thoracic vertebrae: costal facets (superior, inferior, transverse) A typical thoracic vertebra The thoracic vertebrae (vertebrae thoracales) compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae. ...
lumbar vertebrae: accessory process, mammillary process Categories: Anatomy stubs | Anatomy ...
Of the tubercles noticed in connection with the transverse processes of the lower thoracic vertebrae, the inferior is situated at the back part of the base of the transverse process, and is called the accessory process. ...
sacrum/coccyx: pelvic surface (anterior sacral foramina, dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface, base, sacral hiatus This article or section may be confusing or unclear for some readers, and should be edited to rectify this. ...
The coccyx is formed of four fused vertebrae. ...
At the ends of the transverse ridges of the pelvic surface of the sacrum are seen the anterior sacral foramina (or pelvic sacral foramina), four in number on either side, somewhat rounded in form, diminishing in size from above downward, and directed lateralward and forward; they give exit to the...
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