Forearm Wrist and hand Flashcards
Where does the axillary artery become the brachial artery?
inferior border of teres major
What is the Brachial profunda artery?
a deep artery of the arm, and a branch of the brachial artery
where does the brachial artery divide into the radial and ulnar artery? What does the ulnar artery branch into?
At the level of the elbow
it branches to the anterior interosseous artery and posterior interosseous artery
What is the main arterial supply to the superficial palmar arch?
the Ulnar artery
What is the main arterial supply to the DEEP palmar arch?
the Radial artery
The venous drainage of the hand on the lateral side is the ______ vein, on the medial side it is the _____ vein
Cephalic vein is lateral
Basilic vein is medial
The Cephalic and Basilic vein eventually joint to form the axillary vein, but before they do, they are also connected by the _____ _____ vein
the median cubital vein
What is the Radiocarpal articulation and what does it do?
it is between the distal radius and proximal carpals
its a condyloid type
does wrist flexion/extension
and wrist ABduction and ADDuction
What is the Midcarpal articulation and what does it do?
Its an articulation between proximal and distal row of carpal bones
its a plane synovial joint
does gliding motion between carpals
what is the distal radioulnar joint and what does it do?
It is the joint between the distal end of the radius and ulna
its a pivot synovial joint
does supination and pronation
What is a Colle’s fracture?
a fracture of distal radius
usually in postmenopausal women
usually from a fall
dorsal displacement of distal fragment
Where is the attachment of the wrist extensors? The action? the Innervation?
lateral epicondyle of humerus
base of metacarpals
Action: Extend wrist
Innervate: Radial nerve
Repeated forceful flexion of the wrist may strain the attachment of the common extensor tendon, causing what?
Inflammation of the periosteum of the lateral epicondyle
aka LATERAL EPICONDYLITIS
Attachment of FLEXORS of the wrist? Action? Innervation?
Attach: medial epicondyle of humerus
Action: wrist flexion
Innervate: median and Ulnar nerve
Attachment of Palmaris Longus? Action? Innervation? What’s a fun fact about it? do I have it?
Attach: Medial epicondyle of humerus to fascia of palm
Action: Tenses fascia of palm
Innervate: median nerve
10-15% of people don’t have it but I do!
