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Shoulder Girdle/Joint Lab

Shoulder Girdle/Joint Lab. Josh Adetula Deborah Yang. From Which joint is the shoulder connected to the spinal column?. The shoulder is connected to the spinal column via the scapulothoracic joint. Which of the following joints is NOT a part of the shoulder complex?.

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Shoulder Girdle/Joint Lab

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  1. Shoulder Girdle/Joint Lab Josh Adetula Deborah Yang

  2. From Which joint is the shoulder connected to the spinal column? • The shoulder is connected to the spinal column via the scapulothoracic joint.

  3. Which of the following joints is NOT a part of the shoulder complex? • The Alatoaxial joint is not a part of the shoulder complex

  4. Where is the insertion of the Pectoralis minor? • It is inserted at the coracoid process of the scapula.

  5. Q: What is the function of the Levator Scapulae Muscle? • The Levator Scapulae’s Function is to elevate the scapula.

  6. Flexion • Movement of humerus straight anteriorly from any point in the sagittal plane.

  7. Extension • Movement of the humerus straight posteriorly from any point in the sagittal plane

  8. Abduction • Upward lateral movement of the humerus in frontal plane out to the side, and away from the body. • Can be diagonal or horizontal

  9. Adduction • Downward movement of the humerus in the frontal plane medially toward the body. • Can be diagonal or horizontal

  10. Rotation • Lateral movment of the humerus in the tranverse plane along its long axis. • There are 2 types: Internal and External

  11. Sternoclavicular Joint • Distal (also is medial) to the most lateral edge of the deltoid.

  12. Q: Which Nerve innervates the rhomboid muscle? • The rhomboid muscle is innervated by the dorsal scapula nerve

  13. From which cord does the musclocutaneous nerve originate? • The nerve originates from the lateral cord of the brachial plexus.

  14. In which part of the scapula does the humeral head fit, to make the glenohumeral joint? • The humeral head fits into the glenoid cavity to make the glenohumeral joint.

  15. Scapula • Coracoid Process (A) • Scapular Notch (J) • Superior Margin (B) • Supraspinatus Fossa (L) • Superior Angle (K) • Scapular Spine (C) • Vertebral Margin (D) • Infraspinatus Fossa (H) • Inferior Angle (I) • Axillary Margin (E) • Glenoid Cavity Margin (F) • Acromion Process (G)

  16. The Deltoid musle is… • …the main adductor of the shoulder joint.

  17. If the long thoracic nerve gets injured, then which movement of the shoulder girdle will be affected? • Injury to the LTN would greatly affected abduction.

  18. Subclavius Muscle can be strengthened by… • The subclavius muscle can be strengthened by active depression.

  19. The origin of rhomboid muscle is the spineous process of… • Its origin is the spineous process of C7 to T5.

  20. Left Scapula (seen in lateral view) • Coracoid Process • Glenoid Cavity • Scapular Spine • Acromion Process • Infraspinatus Fossa • Inferior Angle

  21. Clavicle injury results…. • When dealt a blow to the medial end of the clavicle, this will cause an AC separation (aka dislocated shoulder), which tears up the joint capsule.

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