Glenohumeral joint and related muscles

1. GLENOHUMERAL JOINT
&
IT`S RELATED STRUCTURE
BY
BHARATH UDAYAKUMAR SANDHYA[2202606]
&
MOHAMMED ABRAR AHMED KHAN[2202813]

2. INTRODUCTION
• The glenohumeral joint,also known as the shoulder
joint,is created by the humerus bone and the
glenoid fossa of the scapula.This joint is upheld by
the rotator cuff muscles and the deltoid
muscle,enabling a broad scope of movement in the
shoulder.

3. ARTICULAR SURFACES OF
GLENOHUMERAL JOINT
• SPHERICAL HEAD OF HUMERUS
• GLENOID CAVITY OF SCAPULA

4. BURSA OF
GLENOHUMERAL
JOINT
• SUBTENDINOUS BURSA OF SUBSCAPULARIS
• SUBACROMIAL/SUBDELTOID BURSA

5. LIGAMENTS OF
GLENOHUMERAL
JOINT
• SUPERIOR,MIDDLE&INFERIOR GLENOHUMERAL
LIGAMENT
• CORACOHUMERAL LIGAMENT
• TRANSVERSE HUMERAL LIGAMENT
• CORACO-ACROMIAL LIGAMENT

6. JOINT
CAPSULE
• The shoulder joint is encircled by a loose fibrous
capsule.It extends from scapula to the
humerus,enclosing the joint on all sides.The
internal surface is lined by a synovial membrane.

7. ROTATOR CUFF
MUSCLES
• SUPRASPINATUS
• INFRASPINATUS
• TERES MINOR
• SUPSCAPULARIS

8. SUPRASPINATUS
• ORGIN-MEDIAL 2/3 OF
SUPRASPINOUS FOSSA OF
SCAPULA
• INSERTION-SUPERIOR FACET ON
GREATER TUBERCLE OF HUMERUS
• FUNCTION-ABDUCTION OF ARM

9. INFRASPINATUS
• ORGIN-2/3 OF INFRASPINATUS FOSSA OF
SCAPULA
• INSERTION-MIDDLE FACET ON POSTERIOR
SURFACE OF GREATER TUBERCLE OF HUMERUS
• FUNCTION-LATERAL ROTATION OF ARM

10. TERES MINOR
• ORGIN-LATERAL BORDER & ADJACENT
POSTERIOR SURFACE OF SCAPULA
• INSERTION-INFERIOR FACET OF GREATER
TUBERCLE OF HUMERUS
• FUNCTION-LATERAL ROTATION OF ARM

11. SUBSCAPULARIS
• ORGIN-SUBSCAPULAR FOSSA
• INSERTION-LESSER TUBERCLE OF HUMERUS
• FUNCTION-INTERNAL ROTATION &ADDUCTION
OF ARM

12. DISORDERS
• ROTATOR CUFF TEAR: It is a shoulder
disorder where the tendons and
muscles surrounding the shoulder
joint become torn.
• SYMPTOMS:pain,weakness,and
limited shoulder movement.
• TREATMENT:rest,physical therapy,and
sometimes surgery.

13. DISORDERS
• TENDINITIS:It is inflammation or
irritation of a tendon due to repetitive
or excessive use.
• SYMPTOMS:pain,swelling and limited
joint movement.
• TREATMENT:rest,ice,pain management
and sometimes physical therapy.

14. CONCLUSION
• ESSENTIAL FOR MOBILITY AND
FUNCTIONALITY OF THE SHOULDER.
• COMPLEX JOINT WITH A WIDE RANGE OF
MOTION.
• PRONE TO INJURIES AND CONDITIONS.
• UNDERSTANDING ITS ANATOMY AND
MECHANICS IS CRUCIAL.
• IMPORTANT FOR HEALTHCARE
PROFESSIONALS,ATHLETES,INDIVIDUALS,S
EEKING SHOULDER HEALTH
MAINTENANCE.

15. REFERENCE
• BOOKS USED:
• GRAY`S ANATOMY
• ATLAS OF HUMAN
• KENHUB.COM

16. THANK YOU!!!
• LECTURER:MESHVELIANI SANDRO