Muscles Connecting The Upper Limb To The Vertebral Column Assignment Help

MUSCLE	ORIGIN	INSEDTION	NERVE SUPPLY	NERVE ROOTS	ACTION
Trapezius	Occipital bone, ligamentum nuchae, C7 spine and all thoracic vertebra	Upper fibres into lateral third of clavicle, middle & lower into acromion and spine of scapula	Spinal part of accessory nerve	XI cranial nerve	Upper fibers elevates scapula;middle fibers pulls scapula medially;lower fibers pull medial border of scapula down
Latissimus dorsi	Iliac crest, lumber facia,spine of lower six thoracic vertebra	Floor of bicipital groove of humerus	Thocacodorsal nerve	C6,7,8	Extends, adducts, and medially rotates the arm
Levator scapulae	Transverse process of first four cervical vertebrae	Medial border of scapula	C3 & 4 and dorsal scapular nerve	C3,4,5	Raise medial border of scapula
Rhomboid minor	Ligamentum nuchae & spines of 7th Cervicle & 1st thoracic	Medial border of scapula	Dorsal scapular nerve	C4,5	Raise medial border of scapula upward and medially
Rhomboid major	2nd to 5th thoracic spines	Medial border of scapula	Dorsal scapular nerve	C4,5	Rais emedial border of scapula upward and medially
Deltoid	Lateral third of clavicle, acromion,spine of scapula	Middle of lateral surface of shaft of humerus	Axillary nerve	C5,6	Abducts arm; flex and medially rotates arm; extends & laterally rotates arm
Supraspinatus	Supraspinus fossa of scapula	Greater tuberocity of humerus	Suprascapular nerve	C4,5,6	Abducts arm and stabilizes shoulder joint
Infraspinatus	Infraspinus fossa of scapula	Greater tuberosity of humerus	Suprascapular nerve	C4,5,6	Laterally rotes arm and stabilizes shoulder joint
Teres major	Lower third of lateral border of scapula	Medial lip of bicipital groove of humerus	Lower subscapular nerve	C6,7	Medially rotates and adducts arm
Teres major	Upper two thirds of lateral border of scapula	Greater tuberosity of humerus	Axillary nerve	C4,5,6	Laterally rotates arm & stabilizes shoulder
Subscapularis	Subscapular fossa	Lesser tuberosity of humerus	Upper & lower subscapular nerves	C5,6,7	Medially rotates arm & stabilizes shoulder joints

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