Lecture 12- Wrist Complex Flashcards
How Many Bones are in the Carpals?
Wrist and 8 Bones
How Many Bones are in the Metacarpals?
Hand and 5 Bones
How Many Bones are in the Phalanges?
Fingers and 14 Bones
What type of Joint is the Radiocarpal?
Condyloid (Ellipsoidal) Synovial Joint
What is the vascularization of the Radiocarpal Joint?
Articular arteries
What type of joint is the Midcarpal Joint?
Intercarpal Joint
What is the Vascularization of the Midcarpal Joint?
Articular Arteries
What are the innervations of the Midcarpal and Radiocarpal Joint?
- Median, Radial and Ulnar Nerves
What type of joint is the Radioulnar Joint?
Pivot Joint
What are the vascularizations of the Radioulnar Joint?
Anterior and Posterior Interosseous Arteries
What are the Innervations of the Radioulnar Joint?
Anterior and Posterior Interosseous Nerves
What bone in forearm is involved in Adduction and to what degree?
Ulnar Deviation (30-45˚)
What bone in forearm is involved in Abduction and to what degree?
Radial Deviation (15-25˚)
Which joint do Adduction and Abduction mostly occur at?
Midcarpal Joint
What artery is in the anatomical snuff-box?
Radial artery
Scaphoid Lunate Distal Radius Triquetral
What are the articular surfaces of the Radiocarpal Joint?
Some flexion and extension Ulnar Deviation
What are the Related Movements of the Radiocarpal Joint?
Scaphoid Lunate Triquetral Trapezoid Capitate Hamate
What are the articular surfaces of the Midcarpal Joint?
Some flexion and extension Radial Deviation (Abduction)
What are the related movements of the Midcarpal Joint?
Head of the Radius Radial Notch of the Ulna Ulnar Notch of Radius Ulnar Head
What are the articular surfaces of the Radioulnar Joint?
Pronation and Supination
What are the related movements of the Radioulnar Joint?
40% Radiocarpal Joint 60% Midcarpal Joint
What joints are involved in Flexion? (Percentage)
33% Midcarpal Joint 67% Radiocarpal Joint
What joints are involved in Extension? (Percentage)
