Joints of the Upper Limb Flashcards
(40 cards)
Shoulder Joint Type
Synovial, polyaxial, ball and socket
Articular Surface of Shoulder Joint
- head of humerus
- glenoid cavity of the scapula
Capsule of shoulder Joint
- attached to the margins of the glenoid cavity outside the labrum glenoidale
- laterally it’s attached to the anatomical neck of the humerus, except inferiorly where it extends about 1 cm to the shaft
Synovial membrane of the shoulder joint
It lines the structures inside the capsule of the shoulder joint except the articular cartilage
-forms a tubular sheath around the long head of biceps tendon
Ligaments related to the shoulder joint
- false ligaments (glenohumeral)
- true ligaments ( coracohumeral ligament, transverse humeral ligament)
Muscles responsible for the flexion of the shoulder joint
- Pectoralis major
- Coracobrachialis
- Anterior fibres of deltoid
Muscles responsible for the extension of the shoulder joint
- teres major
- lattisimus dorsi
- posterior fibres of the deltoid
Muscles responsible for the abduction of the shoulder joint
- Supraspinatus
- Middle fibres of deltoid
- Trapezius and serratus anterior
Muscles responsible for the adduction of the shoulder joint
- pectoralis major
- teres major
- lattisimus dorsi
Muscles responsible for the medial rotation of the shoulder joint
- pectoralis major
- lattisimus
- teres major
- subscapularis
- anterior fibres of deltoid
Muscles responsible for the lateral rotation of the shoulder joint
- posterior fibres of deltoid
- infraspinatus
- teres minor
Nerve supply of shoulder joint
- subscapular nerve
- axillary nerve
- musculocutaneous nerve
Type of elbow joint
Synovial, uniaxial, hinge
Articular surfaces of elbow joint
- humeroulnar part: between trochlea and trochlear notch
- humeroradial part: between capitulum and upper surface or the head of the radius
Capsule of Elbow Joint
- attached to the margins of the articular parts of bones
- attached inferiorly to the annular ligament; becomes continuous with the superior radioulnar joint
Synovial Membrane of Elbow Joint
- lines all structure inside the capsule of the elbow joint except the articular surfaces
- continuous inferiorly with the membrane of the superior radioulnar joint
Ligaments related to Elbow Joint
- ulnar collateral (medial)
- radial collateral (lateral)
Flexion of Elbow joint is done by
- brachialis
- biceps brachii
- brachioradialis
Extension of Elbow joint is done by
- triceps
- anconeus
Nerve Supply of Elbow Joint
- musculocutaneous
- radial
- ulnar
- median
Type of Superior Radioulnar joint
synovial, uniaxial, pivot
Capsule of Superior Radioulnar joint
attached to the margins of the articular parts
Articular Surfaces of Superior Radioulnar joint
Radial notch of ulna and annular ligament
Circumference of head of radius
Ligaments attached to Superior Radioulnar joint
- annular ligament
- quadrate ligament