Studying Muscle Notebook
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16 Terms
Upper Trapezius
O: Occipital bone, nuchal ligament, all cervical spinous processes
I: Lateral 1/3 of the clavicle & the acromion process
A: Scapular elevation & upward rotation
N: CN XI, C3, C4
Middle Trapezius
O: Spinous process C7-T3
I: Scapular spine
A: Scapular retraction/adduction
N: CN XI, C3, C4
Lower Trapezius
O: Spinous processes T4-T12
I: Scapular spine base
A: Scapular depression & upward rotation
N: CN XI, C3, C4
Levator Scapulae
O: Transverse processes C1-C4
I: Medial superior scapula
A: Scapular elevation and downward rotation
N: C5
Rhomboids Minor & Major
O: Spinous processes Mi: C7-T1, Ma: T2-T5
I: Medial border of scapula
A: Scapular retraction, elevation & downward rotation
N: C5
Serratus Anterior
O: Ribs 1-9
I: Anterior medial scapula
A: Scapular protraction & upward rotation
N: C4-C6
Pectoralis minor
O: Ribs 3-5
I: Coracoid process of scapula
A: Scapular protraction, depression, downward rotation, & tilt
N: C8, T1
Anterior Deltoid
O: Lateral 1/3 of clavicle
I: Teltoid Tuberosity
A: Abduction, flexion, internal rotation, horizontal adduction
N: C5, C6
Middle Deltoid
O: Acromion Process
I: Deltoid Process
A: Abduction
N: C5, C6
Posterior Deltoid
O: Lateral spine of scapula
I: Deltoid Tuberosity
A: Abduction, extension, hyperextension, external rotation, horizontal abduction
Pectoralis Major
O: C - Medial 1/3 of clavicle; S - Sternum & cartilage of ribs 1-6
I: Intertubecular Groove
A: C - First 60o flexion; S - Extension; T - Adduction, internal rotation, external adduction
N: C5-T1
Latissimus Dorsi
O: T7-L5 spinous process, sacrum, iliac crest, lower 3 ribs
I: Intertubecular Groove
A: Extension hyper extension, adduction, internal rotation
N: C6-C8
Teres Major
O: Inferior 1/3 lateral border of scapula
I: Intertubecular Groove
A: Extension, internal rotation, adduction
N: C5-C7
Subscapularis
O: Subspinous fossa
I: Greater Tubercle
A: Abduction
N: C5, C6
Infraspinatus
O: Infraspinous fossa
I: Greater tubercle
A: Horizontal abduction, external rotation
N: C5, C6
Teres minor
O: Axillary border of scapula
I: Greater tubercle
A: Horizontal abduction & external rotation
N: C5, C6