UmărCentura pectorală

Upper Trapezius MuscleO Occipital bone, nuchal ligament on upper cervical spinous processesI Outer third of clavicle, acromion processA Scapular elevation and upward rotationN Spinal accessory (cranial nerve XI), C3 and C4 sensory component

Middle Trapezius MuscleO Spinous processes of C7 through T3I Scapular spineA Scapular retractionN Spinal accessory (cranial nerve XI), C3 and C4 sensory component

Lower Trapezius MuscleO Spinous processes of middle and lower thoracic vertebraeI Base of the scapular spineA Scapular depression and upward rotationN Spinal accessory (cranial nerve XI), C3 and C4 sensory component

Levator Scapula MuscleO Transverse processes of first four cervical vertebraeI Vertebral border of scapula between the superior angle and spineA Scapular elevation and downward rotationN Third and fourth cervical nerves and dorsal scapular nerve (C5)

Rhomboid MusclesO Spinous processes of C7 through T5I Vertebral border of scapula between the spine and inferior angleA Scapular retraction, elevation, and downward rotationN Dorsal scapular nerve (C5)

Serratus Anterior MuscleO Lateral surface of the upper eight ribsI Vertebral border of the scapula, anterior surfaceA Scapular protraction and upward rotationN Long thoracic nerve (C5, C6, C7)

Pectoralis Minor MuscleO Anterior surface, third through fifth ribsI Coracoid process of the scapulaA Scapular depression, protraction, downward rotation, and tiltN Medial pectoral nerve (C8, T1)

Prime Movers of the Shoulder Girdle

Retraction - Middle trapezius, rhomboidsProtraction- Serratus anterior, pectoralis minorElevation -Upper trapezius, levator scapula, rhomboidsDepression- Lower trapezius, pectoralis minorUpward rotation -Upper and lower trapezius Serratus anterior (lower fibers)Downward rotation -Rhomboids, levator scapulae, pectoralis minorScapular tilt- Pectoralis minor

Art. Umărului-mișcări braț în raport cu toracele

Anterior Deltoid MuscleO Lateral third of the clavicleI Deltoid tuberosityA Shoulder abduction, flexion, medial rotation, and horizontal adductionN Axillary nerve (C5, C6)

Middle Deltoid MuscleO Acromion processI Deltoid tuberosity (same as anterior deltoid muscle)A Shoulder abductionN Axillary nerve (C5, C6)

Posterior Deltoid MuscleO Spine of scapulaI Deltoid tuberosity (same as anterior deltoid muscle)A Shoulder abduction, extension, hyperextension, lateral rotation, horizontal abductionN Axillary nerve (C5, C6)

Pectoralis Major Muscle, Clavicular PortionO Medial third of clavicleI Lateral lip of bicipital groove of humerusA Shoulder flexion—first 60 degrees

Pectoralis Major Muscle, Sternal PortionO Sternum, costal cartilage of first six ribsI Lateral lip of bicipital groove of humerus (same as clavicular portion)A Shoulder extension—first 60 degrees (from 180 degrees to 120 degrees)

Pectoralis Major Muscle, Clavicular and Sternal PortionsA Shoulder adduction, medial rotation, and horizontal adductionN Lateral and medial pectoral nerve (C5, C6, C7, C8, T1)

Latissimus Dorsi MuscleO Spinous processes of T7 through L5 (via dorsolumbar fascia), posterior surface of sacrum, iliac crest, and lower three ribsI Medial floor of bicipital groove of humerusA Shoulder extension, adduction, medial rotation, hyperextensionN Thoracodorsal nerve (C6, C7, C8)

Teres Major Muscle

O Axillary border of scapula near the inferior angleI Crest below lesser tubercle inferior to the latissimus dorsi muscle attachmentA Shoulder extension, adduction, and medial rotationN Lower subscapular nerve (C5, C6, C7)

Infraspinatus MuscleO Infraspinous fossa of scapulaI Greater tubercle of humerusA Shoulder lateral rotation, horizontal abductionN Suprascapular nerve (C5, C6)

Supraspinatus MuscleO Supraspinous fossa of the scapulaI Greater tubercle of the humerusA Shoulder abductionN Suprascapular nerve (C5, C6)

Teres Minor MuscleO Axillary border of scapulaI Greater tubercle of humerusA Shoulder lateral rotation, horizontal abductionN Axillary nerve (C5, C6)

Subscapularis MuscleO Subscapular fossa of the scapulaI Lesser tubercle of the humerusA Shoulder medial rotationN Upper and lower subscapular nerve (C5, C6)

Coracobrachialis MuscleO Coracoid process of the scapulaI Medial surface of the humerus near the midpointA Stabilizes the shoulder jointN Musculocutaneous nerve (C6, C7)

Prime Mover Muscles of the Shoulder JointFlexion -Anterior deltoid, pectoralis major (clavicular)*Extension- Posterior deltoid, latissimus dorsi, teres major, pectoralis major (sternal)† Hyperextension- Latissimus dorsi, posterior deltoidAbduction- Deltoid, supraspinatusAdduction- Pectoralis major, teres major, latissimus dorsi Horizontal abduction- Posterior deltoid, infraspinatus, teres minor

Horizontal adduction- Pectoralis major, anterior deltoidLateral rotation- Infraspinatus, teres minor, posterior deltoidMedial rotation -Latissimus dorsi, teres major, subscapularis, pectoralis major,anterior deltoid

FISE DE PRINTAT DIN: Kendall_McCreary]_Muscles.Testing.Function.Posture.Pain.5th.Ed

PAG 342,332,326DE PE STIK CLAUDIU