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==Definition==
==Definition==
The '''spinous process''' is an unpaired bony process that originates - pointing dorsally - from the vertebral arch of a vertebra. It serves, for example, as an attachment or origin for fibres of the back muscles, fasciae and ligament structures (ligaments) in the area of the back.
The '''spinous process''' is an unpaired [[Corpus:Bone|bony]] process that originates — pointing dorsally — from the vertebral arch of a [[Corpus:Vertebra|vertebra]]. It serves as an attachment site for [[Corpus:Muscle|muscles]], [[Corpus:Fascia|fascia]], and [[Corpus:Ligament|ligaments]] of the [[Corpus:Back|back]].


== Special features ==
== Special features ==
===Cervical spine===
===Cervical spine===
In the area of the cervical spine (cervical spine), the spinous processes are rather bifurcated and relatively short. The processus spinosus of the 7th cervical vertebra is particularly easy to palpate and therefore important for the clinical examination. This is also known as the vertebra prominens. As a rule, the spinous process of the 6th cervical vertebra is the uppermost, which is easy to palpate through the skin.
In the [[Corpus:Cervical spine|cervical spine]], the spinous processes are typically bifid and relatively short. The spinous process of the 7th [[Corpus:Cervical vertebra|cervical vertebra]], known as the vertebra prominens, is particularly prominent and easily palpable, making it an important landmark in clinical examinations. The spinous process of the 6th cervical vertebra is often the most superior process that can be distinctly palpated through the [[Corpus:Skin|skin]].


===Chest spine===
===Thoracic spine===
The spinous processes of the thoracic spine are long and point diagonally downwards. Their overlapping resembles the pattern of roof tiles lying on top of each other. This arrangement limits the dorsal extension of the spinal column. The spinous process of the first thoracic vertebra is usually the longest.
In the [[Corpus:Thoracic spine|thoracic spine]], the spinous processes are long and angled downward. Their arrangement, resembling overlapping roof tiles, restricts dorsal extension of the spine. The first [[Corpus:Thoracic vertebra|thoracic vertebra]] usually has the longest spinous process in this region.


===Lumbar spine===
===Lumbar spine===
The spinous processes of the lumbar spine appear to point straight backwards. For this reason, a lumbar puncture is easy to perform here.
In the [[Corpus:Lumbar spine|lumbar spine]], the spinous processes project directly posteriorly. This orientation allows for easy access during lumbar punctures.


===Os sacrum===
===Sacrum===
In the sacral region, the crista sacralis mediana corresponds to the spinous processes.
In the sacral region, the spinous processes are fused to form the median sacral crest.
[[Kategorie:Corpus]]
[[Kategorie:Corpus]]

Aktuelle Version vom 28. November 2024, 15:58 Uhr

Definition

The spinous process is an unpaired bony process that originates — pointing dorsally — from the vertebral arch of a vertebra. It serves as an attachment site for muscles, fascia, and ligaments of the back.

Special features

Cervical spine

In the cervical spine, the spinous processes are typically bifid and relatively short. The spinous process of the 7th cervical vertebra, known as the vertebra prominens, is particularly prominent and easily palpable, making it an important landmark in clinical examinations. The spinous process of the 6th cervical vertebra is often the most superior process that can be distinctly palpated through the skin.

Thoracic spine

In the thoracic spine, the spinous processes are long and angled downward. Their arrangement, resembling overlapping roof tiles, restricts dorsal extension of the spine. The first thoracic vertebra usually has the longest spinous process in this region.

Lumbar spine

In the lumbar spine, the spinous processes project directly posteriorly. This orientation allows for easy access during lumbar punctures.

Sacrum

In the sacral region, the spinous processes are fused to form the median sacral crest.