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| − | The radial bone (lat. radius) is one of the two bones of the forearm. It belongs to the tubular bones and runs approximately parallel to the ulna. The | + | The radial bone (lat. radius) is one of the two bones of the forearm. It belongs to the tubular bones and runs approximately parallel to the ulna. The radius is located on the thumb side of the forearm. |
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| − | <div class="center"> <div class="mw-ui-button button_new">[[Special:MyLanguage/Übungsaufgaben| | + | <div class="center"> <div class="mw-ui-button button_new">[[Special:MyLanguage/Übungsaufgaben|Exercises]]</div></div></div> |
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| − | <div | + | <div class="pic">__TOC__</div> |
| − | <div | + | <div class="segmenter"><segmenter-embedding public wsemb-id="RadiusFrau" file="RadiusFrau.seg" height="300px" width="500px"/></div> |
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| − | <ul>''' | + | <ul>'''Following structures'''<li class="mw-ui-button button_new">[[Special:MyLanguage/Oberarmknochen|Upper arm bone]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Elle|ulna]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Handknochen|hand bones]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Handwurzelknochen|carpal bones]]</li></ul></div> |
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| − | <ul>''' | + | <ul>'''Superordinate structures'''<li class="mw-ui-button button_new">[[Special:MyLanguage/Unterarmknochen|Forearm bones]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Knochen Obere Extremität|Bones upper extremity]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Obere Extremität|Upper extremity]]</li><li class="mw-ui-button button_new">[[Special:MyLanguage/Körperregionen|Body regions]]</li></ul></div> |
| − | <div class=" | + | <div class="clear"></div> |
| − | == | + | ---- |
| + | == Anatomie== | ||
| + | <div class="thumb tright thumbinner"> | ||
| + | <div class="picture"> | ||
| + | <lightbox-embedding src="file:RadiusDorsal.png" group="image-group-1" caption="View of the radius (dorsal)" width="400" height="300" style="width:300px;float:right;margin:1px;background-color:#fff;border:1px solid #c8ccd1;"/> | ||
| + | </div> | ||
| + | <div class="gallery" > | ||
| + | <lightbox-embedding src="file:RadiusVentral.png" group="image-group-1" caption="View of the radius (Ventral)"/> <lightbox-embedding src="file:RadiusDistal.png" group="image-group-1" caption="Anatomy of the radius (ventral)"/> <lightbox-embedding src="file:RadiusProximal.png" group="image-group-1" caption="Anatomy of the distal articular surface of the radius"/> | ||
| + | </div> | ||
| + | <div class="thumbcaption"> | ||
| + | Views of the Radius</div> | ||
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| − | <lightbox-embedding src="file:RadiusVentralBeschriftet.png" group="image-group-1" caption=" | + | <lightbox-embedding src="file:RadiusVentralBeschriftet.png" group="image-group-1" caption="Anatomy of the radius (ventral)"/> <lightbox-embedding src="file:RadiusDistaleGelenkfläche.png" group="image-group-1" caption="Anatomy of the distal articular surface of the radius"/><lightbox-embedding src="file:RadiusProximaleGelenkfläche.png" group="image-group-1" caption="Anatomy of the proximal articular surface of the radius"/> |
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| − | + | Anatomy of the radius</div> | |
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| − | + | The radius is the somewhat more strongly developed bone of the forearm and lies approximately parallel to the ulna. With its long, narrow shape it belongs to the tubular bones. The radius is divided into the shaft (Corpus radii), one extremity proximal and one extremity distal. | |
| − | === | + | === Proximal end=== |
| − | + | At the proximal extremity there is the caput radii with the fovea articularis. The fovea articularis is a plate-shaped socket, which is framed by the Circumferentia articularis. This is where the connection to the humerus is located. Distally of the head of the ulna is the place with the smallest diameter, the collum radii. At the transition between collum radii and corpus radii, the tuberosity radii is located medially. | |
| − | + | === Radius shaft=== | |
| − | The | + | The profile of the corpus radii has an almost three-sided shape. The Margo interosseus is medially directed, at this edge the Membrana interossea antebrachii is attached. It is located between the anterior and posterior facies. The lateral facies has a roughness of varying degrees in the middle third of the shaft, the pronator tuberosity, which is where the pronator teres muscle comes in. The lateral facies is separated from the posterior facies by the posterior margo. |
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| − | + | ===Distal end=== | |
| − | + | At the distal end (distal extremity) there is a bony protrusion, the stylus process (Processus styloideus radii). This is where the brachioradialis muscle begins. The distal end is thicker in its entirety than the shaft of the radius. | |
| − | + | On the medial side of the distal end is a notch, the incisura ulnaris. It is there for the head of the ulna. | |
| + | The widening distal end of the radius has the articulation surface Facies articularis carpalis. The carpal bones border on it. | ||
| − | == | + | ==Function== |
| − | + | The radius forms a functional unit together with the ulna. The two bones form the basic bony structure of the forearm and give it stability. Together with the ulna, the radius is involved in the movements of the forearm and the hand. | |
| − | == | + | ==Development== |
| − | + | The radius shaft begins perichondral ossification as early as the seventh week of embryonic development. The distal epiphysis, on the other hand, is formed by the second year of life and the proximal one even by the seventh year of life. Between the ages of 14 and 17, complete closure of the epiphyseal fugues takes place. | |
| − | == | + | ==Diseases== |
| − | * [[Special:MyLanguage/Radiusfraktur| | + | * [[Special:MyLanguage/Radiusfraktur|Fracture of the radius]] |
| − | == | + | ==Free exploration== |
| − | <div style="float:left;margin-right:1em;"><segmenter-embedding | + | <div style="float:left;margin-right:1em;"><segmenter-embedding public wsemb-id="RadiusFrau" file="RadiusFrau.seg" height="300px" width="500px"/></div> |
| − | <div style="float:left;width:50%"> | + | <div style="float:left;width:50%">Look at the structure of the radial bone in 3D and explore it freely. Afterwards you can test your acquired knowledge by the exercises.</div> |
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<div class="button_style"> | <div class="button_style"> | ||
| − | <ul class="center"> <li class="mw-ui-button button_new" >[[Special:MyLanguage/Übungsaufgaben| | + | <ul class="center"> <li class="mw-ui-button button_new" >[[Special:MyLanguage/Übungsaufgaben|Exercises]]</li></ul></div> |
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| − | <ul>''' | + | <ul>'''More articles::'''<li class="mw-ui-button button_new" >[[Special:MyLanguage/Tibia|TIBIA]]</li><li class="mw-ui-button button_new" >[[Special:MyLanguage/Schlüsselbein|Clavicle]]</li></ul> |
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| − | <ul>''' | + | <ul>'''Further links:'''<li class="mw-ui-button button_new">[https://de.wikipedia.org/wiki/Radius_(Anatomie) WIKIPEDIA - RADIUS]</li></ul> |
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| + | [[Category:Unterarmknochen/en]] | ||
| + | [[Category:Knochen Obere Extremität/en]] | ||
| + | [[Category:Obere Extremität/en]] | ||
| + | [[Category:Körperregionen/en]] | ||
<languages/> | <languages/> | ||
Aktuelle Version vom 10. Mai 2022, 12:29 Uhr
The radial bone (lat. radius) is one of the two bones of the forearm. It belongs to the tubular bones and runs approximately parallel to the ulna. The radius is located on the thumb side of the forearm.
Anatomie
Views of the Radius
Anatomy of the radius
The radius is the somewhat more strongly developed bone of the forearm and lies approximately parallel to the ulna. With its long, narrow shape it belongs to the tubular bones. The radius is divided into the shaft (Corpus radii), one extremity proximal and one extremity distal.
Proximal end
At the proximal extremity there is the caput radii with the fovea articularis. The fovea articularis is a plate-shaped socket, which is framed by the Circumferentia articularis. This is where the connection to the humerus is located. Distally of the head of the ulna is the place with the smallest diameter, the collum radii. At the transition between collum radii and corpus radii, the tuberosity radii is located medially.
Radius shaft
The profile of the corpus radii has an almost three-sided shape. The Margo interosseus is medially directed, at this edge the Membrana interossea antebrachii is attached. It is located between the anterior and posterior facies. The lateral facies has a roughness of varying degrees in the middle third of the shaft, the pronator tuberosity, which is where the pronator teres muscle comes in. The lateral facies is separated from the posterior facies by the posterior margo.
Distal end
At the distal end (distal extremity) there is a bony protrusion, the stylus process (Processus styloideus radii). This is where the brachioradialis muscle begins. The distal end is thicker in its entirety than the shaft of the radius. On the medial side of the distal end is a notch, the incisura ulnaris. It is there for the head of the ulna. The widening distal end of the radius has the articulation surface Facies articularis carpalis. The carpal bones border on it.
Function
The radius forms a functional unit together with the ulna. The two bones form the basic bony structure of the forearm and give it stability. Together with the ulna, the radius is involved in the movements of the forearm and the hand.
Development
The radius shaft begins perichondral ossification as early as the seventh week of embryonic development. The distal epiphysis, on the other hand, is formed by the second year of life and the proximal one even by the seventh year of life. Between the ages of 14 and 17, complete closure of the epiphyseal fugues takes place.
Diseases
Free exploration
Look at the structure of the radial bone in 3D and explore it freely. Afterwards you can test your acquired knowledge by the exercises.
