2026 gross ant joints of UE

the sternoclavicular joint is the articulation of what 2 bones?

the proximal end of the clavical and the clavicular notch of the manubrium

what type of joint is the sternoclavicular joint?

synovial, saddle

what is the only articulation between the upper limb and axial skeleton

the sternoclavicular joint

what movement happens at the sternoclavicular joint?

the proximal end of the clavicle moves during limb movement

anterior/posterior, depression/elevation and some rotation

does the sternoclavicular joint have an articular disc?

yes it is completely separated by a disc

for the sternoclavicular joint, is the joint capsule strong or weak?

strong

what are the 3 ligaments of the sternoclavicular joint?

anterior and posterior sternoclavicular ligs

interclavicular ligament

costoclavicular ligament

for the sternoclavicular joint, what ligament is in yellow?

interclavicular ligament

for the sternoclavicular joint, what ligament is in red?

anterior sternoclavicular lig

(posterior is behind)

for the sternoclavicular joint, what ligament is in green?

costoclavicular ligament

the acromiclavicualr joint is the articulation of what 2 bones?

distal end of clavicle and acromion of scapula

what type of joint is the acromioclavicular joint?

synovial, planar

does the acromioclavicular joint have an articular disc?

yes but it is wedge shaped and incomplete

for the acromioclavicular joint, is the joint capsule strong or weak?

weak and reinforced by the trapezius

for the acromioclavicular joint, what ligament is in green?

acromioclavicular ligament

for the acromioclavicular joint, what ligament is in red?

conoid ligament

for the acromioclavicular joint, what ligament is in yellow?

trapezoid ligament

for the acromioclavicular joint, what are the two coracoclavicular ligaments

conoid ligament and trapezoid ligament

for the acromioclavicular joint, what do the coracoclavicular ligaments do?

support weight of upper extremity from clavicle

what type of joint is the glenohumeral joint?

synovial, ball and socket

the glenohumeral joint is the articulation of what bones?

head of humerus with glenoid fossa of scapula

is the glenohumeral joint strong or weak?

weak, loose, and reinforced by labrum, and rotator cuff mm

what are the ligaments of the glenohumeral joint?

glenohumeral ligaments (3 superior, middle, and inferior)

coracohumeral ligament

coracoacromial arch

for the glenohumeral joint, what ligament is in yellow?

coracoacromial ligament

for the glenohumeral joint, what ligament is in blue?

glenohumeral ligaments

for the glenohumeral joint, what ligament is in red?

coracohumeral ligament

what type of joint is the elbow joint?

synovial, hinge

the elbow joint is the articulation of what bones?

the humeroradial and humeroulnar articulations

the trochlea of the humerus and trochlear notch of ulna

the capitulum of humerus and head of radius

is the joint capsule of the elbow strong or weak?

weak anteriorly and posteriorly but weak medially and laterally

for the elbow joint, medial and lateral sides of the joint are reinforced by what 2 ligaments?

radial collateral ligament

ulnar collateral ligament

what movements happen at the elbow joint?

flexion and extension

for the elbow joint, the radial collateral ligaments attaches where to where?

lateral epicondyle to anular ligament of radial head

for the elbow joint, the ulnar collateral ligaments attaches where to where?

medial epicondyle to coronoid process and olecranon of ulna

what kind of joint is the proximal radioulnar joint?

synovial, pivot

the proximal radioulnar joint is the articulation of what bones?

head of radius and radial notch of ulna (proximal so after elbow)

what movements happen at the proximal radioulnar joint?

pronation and supination (radius moving on ulna)

what ligaments reinforce the proximal radioulnar joint?

the anular ligament

for the proximal radioulnar joint, the anular ligament attaches where to where and does what?

attaches anterior and posterior to radial notch

encircles head of radius and holds it into radial notch of ulna

what type of joint is the distal radioulnar joint?

synovial, pivot

the distal radioulnar joint is the articulation of what?

ulnar notch of medial/distal radius with head of ulna distally

what is special about the joint capsule of the distal radioulnar joint?

it extends between the radius and ulna to form a recess which accommodates for the twisting of the capsule that occurs during pronation

in what motion is the distal radioulnar joint twisted (wound up)

pronation

what movements happen at the distal radioulnar joint?

pronation/supination (distal radius moves around head of ulna)

what is special about the articular disc at the distal radioulnar joint?

is is triangular in shape and called the TFCC triangular fibrocartilage complex

what ligament is this

TFCC triangular fibrocartilage complex of the distal radioulnar joint