Tectorial membrane (axis)
Information about Tectorial membrane (axis)
| Tectorial membrane (axis) | |
|---|---|
) | |
| Membrana tectoria, transverse, and alar ligaments. (Membrana tectoria labeled at far left.) | |
) | |
| Median sagittal section through the occipital bone and first three cervical vertebræ. (Membrana tectoria labeled at left, second from top.) | |
| Latin | membrana tectoria |
| subject #74 296 | |
| Dorlands/Elsevier | m_08/12522271 |
It is a broad, strong band which covers the odontoid process and its ligaments, and appears to be a prolongation upward of the posterior longitudinal ligament of the vertebral column.
It is fixed, below, to the posterior surface of the body of the axis, and, expanding as it ascends, is attached to the basilar groove of the occipital bone, in front of the foramen magnum, where it blends with the cranial dura mater.
Its anterior surface is in relation with the transverse ligament of the atlas, and its posterior surface with the dura mater.
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 As such, some of the information contained herein may be outdated.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.
Joints and ligaments of Head and Neck | |
|---|---|
| Atlanto-axial | anterior atlantoaxial ligament - posterior atlantoaxial ligament - cruciform ligament of atlas (transverse ligament of the atlas) |
| Atlanto-occipital | anterior atlantoccipital membrane - posterior atlantoccipital membrane - tectorial membrane - alar ligament - ligament of apex dentis |
| Temporomandibular | capsule - temporomandibular ligament - sphenomandibular ligament - stylomandibular ligament - articular disk |
The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the cranium, is trapezoid in shape and curved on itself. It is pierced by a large oval aperture, the foramen magnum, through which the cranial cavity communicates with the vertebral canal.
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Latin}}}
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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The spinal canal (or vertebral canal or spinal cavity) is the space in vertebrae through which the spinal cord passes. It is a process of the dorsal human body cavity. This canal is enclosed within the intervertebral foramen of the vertebrae.
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The dens or odontoid process or odontoid peg of the axis exhibits a slight constriction or neck, where it joins the body.
On its anterior surface is an oval or nearly circular facet for articulation with that on the anterior arch of the atlas.
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On its anterior surface is an oval or nearly circular facet for articulation with that on the anterior arch of the atlas.
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The posterior longitudinal ligament is situated within the vertebral canal, and extends along the posterior surfaces of the bodies of the vertebræ, from the body of the axis, where it is continuous with the membrana tectoria, to the sacrum.
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vertebral column (backbone or spine) is a column of 34 vertebrae, the sacrum, intervertebral discs, and the coccyx situated in the dorsal aspect of the torso, separated by spinal discs. It houses the spinal cord in its spinal canal.
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The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the cranium, is trapezoid in shape and curved on itself. It is pierced by a large oval aperture, the foramen magnum, through which the cranial cavity communicates with the vertebral canal.
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In anatomy, in the occipital bone, the foramen magnum (Latin: 'great hole') is one of the several oval or circular apertures in the base of the skull (the foramina), through which the medulla oblongata (an extension of the spinal cord) enters and exits the skull vault.
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The dura mater (from the Latin "hard mother"), or pachymeninx, is the tough and inflexible outermost of the three layers of the meninges surrounding the brain and spinal cord. (The other two meningeal layers are the pia mater and the arachnoid mater.
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The transverse ligament of the atlas is a thick, strong band, which arches across the ring of the atlas, and retains the odontoid process in contact with the anterior arch.
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Public domain comprises the body of knowledge and innovation (especially creative works such as writing, art, music, and inventions) in relation to which no person or other legal entity can establish or maintain proprietary interests within a particular legal jurisdiction.
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Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened) is an English-language human anatomy textbook widely regarded as a classic work on the subject.
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Released October 31, 2007
Genre J-Pop
Length N/A
Label Geneon
Producer(s) I've Sound
Mami Kawada singles chronology
Get my way!
(2007) JOINT
(2007)
JOINT
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Genre J-Pop
Length N/A
Label Geneon
Producer(s) I've Sound
Mami Kawada singles chronology
Get my way!
(2007) JOINT
(2007)
JOINT
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In anatomy, the term ligament is used to denote three different types of structures:[1]
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- Fibrous tissue that connects bones to other bones. They are sometimes called "articular ligaments"[2], "fibrous ligaments", or "true ligaments".
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Head and neck anatomy focuses on the structures of the head and neck of the human body, including the brain, bones, muscles, blood vessels, nerves, glands, nose, mouth, teeth, tongue, and throat.
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The Atlanto-axial joint (articulation of the atlas with the axis) is of a complicated nature, comprising no fewer than four distinct joints.
There is a pivot articulation between the odontoid process of the axis and the ring formed by the anterior arch and the
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There is a pivot articulation between the odontoid process of the axis and the ring formed by the anterior arch and the
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The anterior atlantoaxial ligament is a strong membrane, fixed, above, to the lower border of the anterior arch of the atlas; below, to the front of the body of the axis.
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The posterior atlantoaxial ligament is a broad, thin membrane attached, above, to the lower border of the posterior arch of the atlas; below, to the upper edges of the laminæ of the axis.
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The cruciform ligament of atlas (or cruciate ligament) is a ligament of the atlanto-axial joint.
It consists of the transverse ligament of the atlas, along with additional fibers above and below.[1]
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It consists of the transverse ligament of the atlas, along with additional fibers above and below.[1]
References
1.
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The transverse ligament of the atlas is a thick, strong band, which arches across the ring of the atlas, and retains the odontoid process in contact with the anterior arch.
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The Atlanto-occipital joint (articulation between the atlas and the occipital bone) consists of a pair of condyloid joints.
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Ligaments
The ligaments connecting the bones are:- Two Articular capsules
- Posterior atlantoöccipital membrane
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The alar ligaments connect the sides of the dens (on the axis, or the second cervical vertebra) to tubercles on the medial side of the occipital condyle.
They are short, tough, fibrous cords that attach the skull to C1 vertebra and function to check side-to-side movements
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They are short, tough, fibrous cords that attach the skull to C1 vertebra and function to check side-to-side movements
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In the triangular interval between the alar ligaments is another fibrous cord, the ligament of apex dentis (or apical odontoid ligament), which extends from the tip of the odontoid process to the anterior margin of the foramen magnum, being intimately blended with the deep
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Temporomandibular joint is the jaw joint and is frequently referred to as TMJ. There are two TMJs, one on either side, working in unison. The name is derived from the two bones which form the joint: the upper temporal bone
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The articular capsule (capsular ligament) is a thin, loose envelope, attached above to the circumference of the mandibular fossa and the articular tubercle immediately in front; below, to the neck of the condyle of the mandible.
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The temporomandibular ligament (external lateral ligament) consists of two short, narrow fasciculi, one in front of the other, attached, above, to the lateral surface of the zygomatic arch and to the tubercle on its lower border; below, to the lateral surface and posterior
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The sphenomandibular ligament (internal lateral ligament) is a flat, thin band which is attached above to the spina angularis of the sphenoid bone, and, becoming broader as it descends, is fixed to the lingula of the mandibular foramen.
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The stylomandibular ligament is a specialized band of the cervical fascia, which extends from near the apex of the styloid process of the temporal bone to the angle and posterior border of the angle of the mandible, between the Masseter and Pterygoideus internus.
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The articular disk is a thin, oval plate, placed between the condyle of the mandible and the mandibular fossa.
Its upper surface is concavo-convex from before backward, to accommodate itself to the form of the mandibular fossa and the articular tubercle.
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Its upper surface is concavo-convex from before backward, to accommodate itself to the form of the mandibular fossa and the articular tubercle.
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