9.3 – Anatomy of selected diarthroses Flashcards
what are 4 important muscles that help stabilize the shoulder joint?
supraspinatus
infraspinatus
teres minor
subscapularis
what are the 4 muscles of the rotator cuff?
teres minor
subscapularis
infraspinatus
supraspinatus
what factors allow the shoulder to have a wide range of motion?
loose joint capsule and shallow joint cavity
in addition to the glenohumeral ligaments, what are the other ligaments that support the shoulder joint?
coracohumeral ligament
transverse humeral ligament
in addition to the supraspinatus and infraspinatus, what other muscles stabilize the shoulder joint?
teres minor
biceps brachii
subscapularis
what are the 4 bursae of the shoulder joint?
subdeltoid bursae
subacromial bursae
subcoracoid bursae
subscapular bursae
which joint is comprised of the humeroulnar and humeroradial joints?
elbow
which joint occurs in the elbow region but is not part of the hinge joint?
proximal radioulnar
the tendons of which muscles form the rotator cuff?
supraspinatus
infraspinatus
teres minor
subscapularis
which joint is the most complex diarthrosis in the body?
knee
what are the 3 ligaments that support the shoulder joint?
transverse humeral ligament
coracohumeral ligament
glenohumeral ligaments (3 of them)
what are the 2 primary stabilizing structures of the knee?
tendon of quadriceps femurs (anterior)
tendon of semimembranosus muscle (posterior)
the subdeltoid, subacromial, subcoracoid, and subscapular ___ cushion muscles and tissues w/in the shoulder joint
bursae
what are the 2 articulations of the elbow joint?
humeroulnar
humeroradial
the proximal radioulnar joint ___ part of the hinge action of the elbow joint
is not
(proximal radioulnar joint occurs in the elbow region, but it is not involved in the movement of the elbow, therefore not part of the joint. It is involved in the pronation/supination of the radius)
