Q4 Station 2 joints of the supper limb Flashcards
what is the Glenoid Labrum?
fibrous cartilage lip deepening the socket
What are the three Bursae in the shoulder?
subacromial bursa
subdeltoid bursa
subcoracoid bursa
what does the elbow consist of?
3 synovial joints sharing a common joint cavity
What is the Humeroulnar joint?
the largest and strongest of the joint in the elbow
What articulates at the Humeroulnar joint?
the trochlea of the humerus fits into the trochlear notch of the ulna
What movements does the Humeroulnar joint allow?
flexion and extension
What are the three joints in the elbow?
Humeroulnar joint
humeroradial joint
proximal radioulnar joint
Classify the humeroradial joint?
diarthrotic synovial monaxial hinge joint
what happens at the humeroradial joint?
proximal surface of the head of the radius bone slides in a hinge-like manner over the capitulum of the humerus
What happens at the proximal radioulnar joint?
the head of the radius rotates/pivots within the annular ligament which binds the radial head tightly against the radial notch of the ulna.
What does the radioulnar joint allow for?
pronation and supination of the palm of the hand
fully classify the middle radioulnar joint?
amphiarthrotic fibrous symdesmosis joint
What is the name of the fiberous sheet between the ulna and radius?
antebrachial intercosseous membrane
what happens at the distal radioulnar joint?
the ulnar notch of the radius rotates around the ulnar head allowing the radius to cross over the ulnar during pronation
what are the wrist joints?
radioulnar
radiocarpal
intercarpal