Lecture 11- Antebrachium and Elbow Flashcards
What is the Flexor Retinaculum?
A band on the palmar side of the hand near the wrist
What does the Flexor Retinaculum Form?
Forms the carpal tunnel
What is the best area for palpating the pulse of the ulnar and radial arteries?
The anatomical Snuff-Box
What is the major branch of the Ulnar Artery?
Interosseous
What nerves accompany the ulnar and radial arteries?
Ulnar and Radial Nerve
What are the 2 branches of the common interosseous artery?
Anterior Interosseous Posterior Interosseous
What is the close-packed position for the elbow joint?
Extension
What is Valgus Deformity?
Joint Faces Outward Angled Laterally
What is Varus Deformity?
Joint Faces Inward Angled Medially
What is the Carrying Angle of the Elbow
The normal angle at which the elbow hangs/swings to not hit hips
What are the two intersecting axes that define the carrying angle?
Longitudinal Axis of the Humerus Long Axis through Trochlea
What is the Normal Carrying Angle Value for Men?
5 degrees
What is the Normal Carrying Angle Value for Women?
10-15 degrees
What happens when you increase the carrying angle?
Cubitus Valgus
What happens when you decrease the carrying angle?
Cubitus Varus
Trochlear Notch to Trochlea
Attachments of Humeroulnar Joint
Flexion and Extension
Function of the Humeroulnar Joint
Fovea of head of radius to capitulum
Attachments of Humeroulnar Joint
Flexion, extension, pronation, supination
Function of Humeroulnar Joint
Radial Notch of Ulna and Annular Ligament
Attachments of Superior Radioulnar Joint
Ulnar Notch of Radius, Articular Disc, Head of Ulna
Attachments of Inferior Radioulnar Joint
Interosseous membrane
Attachments of Intermediate Radioulnar Joint
Medial Epicondyle to Coronoid Process and Olecranon Process
Attachments of Medial (Ulnar) Collateral Ligament
Slack ligaments result in valgus deformity
Type of Injury to MCL/UCL
Lateral Epicondyle to annular ligament and olecranon process
Attachments of Lateral (Radial) Collateral Ligament
Slack ligament results in varus deformity
Type of Injury to LCL/RCL