Scapula Flashcards
Where on the Skeleton is the Scapula Located
Pectoral/Shoulder Girdle
Appendicular Skeleton
Describe the Shape of the Scapulae
Flat and Triangular
The Scapulae are Located on the Trunk of the Body between which 2 Ribs
2nd and 7th
How to Differentiate between L and R
Glenoid Fossa faces Laterally
Coracoid Process faces Anteriorly
How to Differentiate between Ant and Post
Spine of Scapula faces Posteriorly
Subscapular Fossa faces Rib Cage (Anteriorly)
What Type of Bone is the Scapula
Flat Bone
Which 3 Joints are Associated with the Scapulae
1) Acromioclavicular Jt
2) Glenohumeral Jt
3) Scapulothoracic Jt
Describe the Articulating Surfaces of the Acromioclavicular Jt
Acromial (Lateral) end of Clavicle and Acromion Process of Scapula
Describe the Articulating Surfaces of the Glenohumeral Jt
Glenoid Fossa of Scapula and Head of the Humerus
Describe the Articulating Surfaces of the Scapulothoracic Jt
Subscapular Fossa of Scapula and Posterior Upper Rib Cage
Structural Classification of Acromioclavicular Jt
Synovial Planar/Gliding
Structural Classification of Glenohumeral Jt
Synovial Ball and Socket
Structural Classification of Scapulothoracic Jt
Not a Synovial Jt
Muscle Actions Associated with the Scapula (9)
1) Scapula Retractors
2) Scapula Protractors
3) Elevators
4) Scapula Depressors
5) Internal Rotators of Humerus
6) External Rotators of Humerus
7) Extensors of Humerus
8) Flexors of Humerus
9) ABductors of Humerus
What are the 11 Palpable Landmarks on the Scapula
1) Spine
2) Angles (3 Corners) - Superior, Medial, Inferior
3) Borders - Superior, Medial, Lateral
4) Supraglenoid Tubercle
5) Infraglenoid Tubercle
6) Tubercle of the Spine
7) Acromion Process
8) Coracoid Process
9) Supraspinous Fossa
10) Infraspinous Fossa
11) Subscapular Fossa
Function of Spine of Scapula
MA: Trapezius and Posterior Deltoid
Function of Superior Angle
MA: Levator Scapula
Function of Medial Angle (Root of the Spine)
MA: Rhomboid Minor and Lower Trapezius
Function of Inferior Angle
MA: Teres Major and Latissimus Dorsi
Function of Superior Border
MA: Levator Scapula and Omohyoid
Function of Medial (Vertebral) Border
MA: Levator Scapula, Rhomboid Minor, Rhomboid Major, and Serratus Anterior (on Ant. Aspect of Medial Border)
Function of Lateral (Axillary) Border
MA: Teres Minor (Superior) and Teres Major (Inferior)
Function of Supraglenoid Tubercle
MA: Biceps Brachii Long Head
Function of Infraglenoid Tubercle
MA: Triceps Brachii Long Head
Function of Tubercle of the Spine
Widest Portion of Spine; Generally 1/3 of way from Medial Angle
Function of Acromion Process
Joint Surface: Acromioclavicular Jt
MA: Trapezius and Deltoid
LA: Coracoacromial Lig., Sup and Inf Acromioclavicular Lig.
Function of Coracoid Process
MA: Biceps Brachii Short Head, Pectoralis Minor, and Coracobrachialis
LA: Coracoclavicular Lig. and Coracoacromial Lig.
Function of Supraspinous Fossa
MA: Supraspinatus
Function of Infraspinous Fossa
MA: Infraspinatus
Function of Subscapular Fossa
MA: Subscapularis
4 Non-Palpable Landmarks of Scapula
1) Neck
2) Suprascapular Notch
3) Spinoglenoid Notch
4) Glenoid Fossa
Where is the Neck of the Scapula Located
Medial of the Glenoid Projection
Function and Location of Suprascapular Notch
F: Passageway for Nerve (Suprascapular)
MA - Infraspinatus and Supraspinatus
LA - Transverse Scapular Lig.
L: Lateral End of Superior Border
Function and Location of Spinoglenoid Notch
F: Passageway for Suprascapular Nerve AND Artery
L: At Junction of Spine and Neck
Function of Glenoid Fossa
- Joint Surface: Glenohumeral Jt
- Receives Head of Humerus
- Attachment for Glenoid Labrum
