Week 4 and 5: Scapula and Shoulder Flashcards
Origin of Serratus Anterior?
Ribs 1-9
Insertion of Serratus Anterior?
Medial border of the scapular on the anterior side
Innervation of Serratus Anterior?
Long Thoracic Nerve (C5-C7)
Actions (2) of Serratus Anterior?
- Upward rotation of the scapula
2. Protraction
The long thoracic nerve innervates which muscle?
Serratus Anterior
Origins (4) of the Upper Trapezius?
- external occipital protuberance
- medial 1/3 nuchal line (superior) of the occipit
- nuchal ligament
- SPINOUS process of C7
Insertion (2) of the Upper Trapezius?
- Lateral 1/3 of the clavicle
2. Acromion process of the scapula
Actions (3) of the Upper Trapezius?
- Elevation
- Upward rotation
- Retractions
Innervations (2; 1 sensory, 1 motor) of the Upper Trapezius?
Motor: spinal accessory nerve XI
Sensory: C3 and C4
Origin (1) of Middle Trapezius?
Spinous Process of T1-T5
Insertions (2) of Middle Trapezius?
- Spine of scapula
2. Acromion process of the Scapula
Innervation of Middle Trapezius (2)
Sensory: C3 and C4
Motor: Spinal Accessory Nerve
Actions (2) of Middle Trapezius?
- Retraction
2. Upward Rotation
Origin (1) of Lower Trapezius?
Spinous process of T6-T12
Insertion (1) of Lower Trapezius?
Middle portion of the spine of the scapula
Actions (2) of the Upper Trapezius?
- Depression
2. Retraction
Innervation (2) of Lower Trapezius
Motor- Spinal accessory
Sensory- C3 and C4
Origin (1) of Rhomboids?
Spinous Process of C7-T5
Insertion (1) of Rhomboids?
Medial border of the scapula from the root of the spine to the inferior angle
Actions (2) of Rhomboids?
- Retraction
2. Downward Rotation
Innervation (1) of Rhomboids?
Dorsal Scapular Nerve (C5)
Origins (3) of Pectoralis Major?
- Clavicle
- Sternum
- Costal cartilage of ribs 1-7
Insertion (1) of Pectoralis Major?
Bicipital Groove on the humerus
Innervation (2) of Pectoralis Major?
- Medial Pectoral N.
2. Lateral Pectoral N.
Actions (1) of the Pectoralis Major?
- Horizontal Adduction of the arm
Origin (1) of Levator Scapulae?
Transverse process of C1-C4
Insertion (2) of Levator Scapulae?
- medial border of the scapula between the superior angle and 2. the spine
Innervation (1) of Levator Scapulae?
Dorsal Scapular N.
Origin (1) of Pectoralis Minor?
Coracoid process of the scapula
Insertion (1) of Pectoralis Minor
ribs 3-5
Innervation (2) of Pectoralis Minor
Medial pectoral N.
Lateral pectoral N.
Origin (1) of Teres Minor
Lateral border of the scapula
Insertion (1) of Teres Minor
Greater Tubercle of the humerus
Innervation (1) of Teres Minor
Axillary N.
Origin (1) of Subscapularis?
Subscapular fossa
Insertion (1) of Subscapularis?
Lesser tubercle of the humerus
Innervation (2) of Subscapularis?
Upper subscapular N.
Lower subscapular N.
Origin (3) of the Deltoid?
Acromion
Spine
Clavicle
Insertion (1) of the Deltoid?
Deltoid Tuberosity
Innervation (1) of the Deltoid?
Axillary N.
Origin (1) of the Infraspinatus?
Infraspinatus Fossa
Insertion (1) of the Infraspinatus?
Greater tubercle of the humerus
Innervation (1) of Infraspinatus?
Suprascapular N.
Origin (1) of Teres Major?
Lateral/Inferior border of the scapula
Insertion (1) of Teres Major?
Bicipital Groove of the humerus
Innervation (1) of Teres Major?
Lower Subscapular N.
Origin (3) of Latissmus Dorsi?
Spinous process of T7-L5
sacrum
illiac crest via thoracodorsal fascia
Insertion (1) of Latissmus Dorsi?
Bicipital Groove of the humerus
Innervation (1) of Latissmus Dorsi?
Thoracodorsal N.
Origin (1) of Supraspinatus?
supraspinatus fossa
Insertion (1) of Supraspinatus?
Greater tubercle of the humerus
Innervation (1) of Supraspinatus?
Suprascapular N.
Origin (1) of Coricobrachialis?
Coracoid process of the scapula
Insertion (1) of Coricobrachialis?
Medial shaft of the humerus
Innervation (1) of Coricobrachialis?
Musculocutaneous N.
Action (1) of Infraspinatus?
External Rotation
Action (1) of subscapularis?
Internal Rotation
Actions (3) of deltoid?
Anterior: flexion
Middle: Abduction
Posterior: Horizontal Abduction
Action (1) of Latissumus Dorsi?
Shoulder extension