Elbow and forearm Flashcards
[extension] what kind of lever is the elbow?
1st class
[flexion] What kind of lever is the elbow
3rd class lever
attachment of superficial flexors of the forearm
medial epicondyle of the humerus
attachment of supinator and superficial extensor muscle of the forearm
lateral epicondyle
strongest ligament of the elbow
Anterior oblique ulnar ligament
weakest ligament of the elbow
posterior oblique ulnar ligament
the flexor muscles (except flexor carpi ulnaris) are innervated by the
median nerve
chief flexor muscles
biceps brachii, brachialis
secondary flexors
brachioradialis, pronator teres
Extensors are innervated by
radial nerve
T/F the radius is shorter than the ulna
T
the head of the radius articulates with the
capitulum of the humerus, radial notch of the ulna
the ulnar notch of the radius articulates with the
head of the ulna
T/F the styloid process of the ulna is greater than that of the radius
F
T/F the shaft of the radius is contradistinction to that of the ulna that it is wider above han it is below
F
the stabilizing bone of the forearm is the
ulna
what attaches the ulna to the head of the radius?
radial notch
disklike triangular cartilage between the ulna and the carpal bones
triangulofibrocartilaginous complex
the interosseous membrane of the forearm connects what structures?
radius and ulna
destruction of the triangular fibrocartilage leads to
arthritis
what separates the distal radioulnar joint from the cavity of the wrist joint?
articular disk
which nerve goes in the carpal tunnel?
median nerve
artery found in the cubital fossa
radial artery
the median cubital veins provide communication between which veins?
basilic and cephalic
