Slideshow: Radius
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The Radius
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Transcript of Slideshow: Radius
The Radius
The Radius
The Radius is one of two bones in the forearm
The Radius
The Radius is one of two bones in the forearm
It lies laterally
The Ulna lies medially
The Radius
The Radius is a long bone
Right side, posterior view
The Radius
It is divided into
thirds along its
length
Right side, posterior view
The Radius
It is divided into
thirds along its
length
Right side, posterior view
The Radius
It is divided into
thirds along its
length
Proximal third
Right side, posterior view
The Radius
It is divided into
thirds along its
length
Proximal third
Middle third
Right side, posterior view
The Radius
It is divided into
thirds along its
length
Proximal third
Middle third
Distal Third
Right side, posterior view
The Radius
The Radius Articulates at the proximal end with the
Humerus at the Elbow Joint
The Radius
The Radius Articulates at the distal end with the Carpus
at the Wrist Joint
The Radius
The Radius Articulates at both ends with the ulna at the
Proximal Radio-Ulnar Joint
The Radius
The Radius Articulates at both ends with the ulna at the
Proximal Radio-Ulnar Joint
Distal Radio-Ulnar Joint
The Radius
Oblique View Anterior View (Supination)
Proximal Radius
Right side
The Radius
Oblique View Anterior View (Supination)
Head of Radius
Right side
The Radius
Oblique View Anterior View (Supination)
Head of Radius articulates with Capitulum of the Distal Humerus
Right side
Capitulum ofDistal Humerusarticulates with
Head of Proximal Radius
The Radius
Right side
The Radius
Oblique View Anterior View (Supination)
Neck of Radius
Right side
The Radius
Oblique View Anterior View (Supination)
Neck of Radius surrounded by the Annular Ligament
Right side
The Radius
Oblique View Anterior View (Supination)
Neck of Radius surrounded by the Annular LigamentThis allows the Radius to rotate around the Ulna in
Pronation and Supination
Right side
Elbow Joint
Supination Pronation
Elbow Joint
Supination
Pronation
The Radius
Oblique View Anterior View (Supination)
Radial Tuberosity
Right side
The Biceps muscles attaches distally to the radius
It flexes the elbow joint and supinates the forearm
Radial Tuberosity
The Radius
The Radius
Dorsal aspect
Distal Radius
Lateral Medial
Right side
The Radius
Dorsal aspect
Radial Styloid
This is the lateral side because the
Radial Styloid
is prominent distally
Medial
Right side
The Radius
Distal Radius – Lateral View
Anterior / Volar Surface
Posterior / Dorsal Surface
The Radius
Distal Radius – Lateral View
The Volar Surface has a gentle curve in the Anterior or Volar direction
Anterior / Volar Surface
Posterior / Dorsal Surface
The Radius
Radial Styloid – Lateral View
Anterior / Volar Surface
Posterior / Dorsal Surface
The Radius
Dorsal aspect
Lister’s Tubercle
Lateral Medial
Right side
The Radius
Dorsal View
Lister’s Tubercle
Lateral Medial
Tendon of Extensor Pollicis Longus courses just medial to the Tubercle
The Radius
The groove for tendon of
Extensor Carpi RadialisBrevis
lies just lateral to Lister’s Tubercle
Dorsal aspect
Lister’s Tubercle
Lateral Medial
The Radius
The groove for tendon of
Extensor Carpi RadialisLongus
lies just lateral to the groove for Extensor Carpi Radialis Brevis
Dorsal aspect
Lister’s Tubercle
Lateral Medial
The Radius
Dorsal aspect
Lister’s Tubercle
Lateral Medial
The groove for tendon of
Extensor Pollicis Longus
lies just medial to Lister’s Tubercle
The Radius
Dorsal aspect
Lister’s Tubercle
Lateral Medial
The groove for tendons of
Extensor DigitorumExtensor Indicis
lies just medial to Extensor Pollicis Longus
The Radius
Distal Radius Articular Surface
Posterior / Dorsal Surface
Anterior / Volar Surface
The Radius
Distal Radius Articular Surface
Posterior / Dorsal Surface
Anterior / Volar Surface
Lateral Fossa articulates with the Scaphoid
The Radius
Distal Radius Articular Surface
Posterior / Dorsal Surface
Anterior / Volar Surface
Medial Fossa articulates with the Lunate
The Radius
Posterior / Dorsal Surface
Anterior / Volar Surface
This region – the Ulnar Notch articulates with the distal ulna at the Distal Radio-Ulnar Joint
Posterior view
Muscles attaching to dorsal aspect of Radius
Supinator
Posterior view
Muscles attaching to dorsal aspect of Radius
Supinator
Posterior view
Muscles attaching to dorsal aspect of Radius
Pronator Teres
Posterior view
Muscles attaching to dorsal aspect of Radius
Pronator Teres
Posterior view
Muscles attaching to dorsal aspect of Radius
Pronator Teres
Posterior view
Muscles attaching to dorsal aspect of Radius
Abductor Pollicis Longus
Posterior view
Muscles attaching to dorsal aspect of Radius
Extensor Pollicis Brevis
Posterior view
Muscles attaching to dorsal aspect of Radius
Extensor Pollicis Brevis
Posterior view
Muscles attaching to dorsal aspect of Radius
Brachioradialis
Posterior view
Muscles attaching to dorsal aspect of Radius
Brachioradialis
The Radius
Muscles attaching to Volar Aspect
Biceps
The Radius
Muscles attaching to Volar Aspect
Biceps
The Radius
Muscles attaching to Volar Aspect
Supinator
The Radius
Muscles attaching to Volar Aspect
Supinator
The Radius
Flexor Digitorum SuperficialisRadial Head
Muscles attaching to Volar Aspect
The Radius
Flexor Digitorum SuperficialisRadial Head
Muscles attaching to Volar Aspect
The Radius
Flexor Pollicis Longus
Muscles attaching to Volar Aspect
The Radius
Flexor Pollicis Longus
Muscles attaching to Volar Aspect
Muscles attaching to Volar Aspect
The Radius
Pronator Teres
Muscles attaching to Volar Aspect
The Radius
Pronator Teres
The Radius
Pronator Quadratus
Muscles attaching to Volar Aspect
The Radius
Pronator Quadratus
Muscles attaching to Volar Aspect
The Radius
Brachioradialis
Muscles attaching to Volar Aspect
The Radius
Brachioradialis
Muscles attaching to Volar Aspect
Posterior view
Summary of Muscles Attaching to the Radius
• Abductor Pollicis Longus• Biceps• Brachioradialis• Extensor Pollicis Brevis• Flexor Digitorum Superficialis• Flexor Pollicis Longus• Pronator Teres• Pronator Quadratus• Supinator
