Lab 2: Origin, Insertion, Innervation, Blood supply, Action Flashcards
Origin of subclavius.
Junction of 1st rib and costal cartilage
Origin of pec major
Calvicular head: anterior surface of medial half of clavicle
Sternocostal head: anterior surface of sternum, superior 6 costal cartilages, aponeurosis of external oblique muscles
Origin of pec minor
3rd to 5th costal cartilage
Origin of serratus anterior
External surface of lateral parts of ribs 1 to 8
Origin of levator scapulae
Posterior tubercles of transverse processes of C1 to C4 vertebrae
Origin of trapezius
Medial third of nuchal line, external occipital protuberance, nuchal ligament, spinous processes of C7 to T12 vertebrae
Origin of rhomboid major
Spinous processes of T2 to T5 vertebrae
Origin of rhomboid minor
Nuchal ligament, spinous processes of C7 to T1
Origin of deltoid
Lateral third of clavicle, acromion, and spine of scapula
Origin of latissimus dorsi
Spinous processes of T7 to T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs
Origin of teres major
Posterior surface of inferior angle of scapula
Origin of teres minor
Middle part of lateral border of scapula
Origin of infraspinatus
Infraspinous fossa of scapula
Origin of supraspinatus
Supraspinous fossa of scapula
Origin of subscapularis
Subscapular fossa
Insertion of subclavius
Inferior surface of middle third clavicle
Insertion of pectoralis major
Lateral lip of intertubercular sulcus
Insertion of pec minor
Medial border and superior surface of coracoid process of scapula
Insertion of serratus anterior
Anterior surface of medial border of scapula
Insertion of levator scapulae
Medial border of scapula
Insertion of trapezius
Lateral third of clavicle, acromion, and spine of scapula
Insertion of rhomboid major
Medial border of scapula
Insertion of rhomboid minor
Medial border of scapula spine
Insertion of deltoid
Deltoid tuberosity of humerus
Insertion of latissimus dorsi
Floor of intertubercular sulcus of humerus
Insertion of teres major
Medial lip of intertubercular sulcus of humerus
Insertion of teres minor
Inferior facet of greater tubercle of humerus
Insertion of infraspinatus
Middle facet of greater tubercle of humerus
Insertion of supraspinatus
Superior facet of greater tubercle of humerus
Insertion of subscapularis
Lesser tubercle of humerus
Innervation of subclavius
Subclavian nerve
Innervation of pectoralis major
Lateral and Medial pectoral nerves
Innervation of pec minor
Medial pectoral nerve
Innervation of serratus anterior
Long thoracic nerve
Innervation of levator scapulae
Dorsal scapular (C5) and cervical nerves (C3, C4)
Innervation of trapezius
Spinal accessory nerve (CN XI) and C3, C4 spinal nerves
Innervation of rhomboid major
Dorsal scapular nerve
Innervation of rhomboid minor
Dorsal scapular nerve
Innervation of deltoid
Axillary nerve
Innervation of latissimus dorsi
Thoracodorsal nerve
Innervation of teres major
Lower subscapular nerve
Innervation of teres minor
Axillary nerve
Innervation of infraspinatus
Suprascapular nerve
Innervation of supraspinatus
Suprascapular nerve
Innervation of subscapularis
Upper and lower subscapular nerve
Blood supply of subclavius
Thoracoacromial artery
Blood supply of pec major
Thoracoacromial artery
Blood supply of pec minor
Thoracoacromial artery
Blood supply of serratus anterior
Thoracoacromial artery
Blood supply of levator scapulae
thoracodorsal artery artery
Blood supply of trapezius
Transverse cervical and superficial cervical arteries
Blood supply of rhomboid major
Dorsal scapular artery
Blood supply of rhomboid minor
Dorsal scapular artery
Blood supply of deltoid
Throacoacromial artery, and the anterior and posterior circumflex humeral arteries
Blood supply of latissimus dorsi
Throacodorsal artery, Subscapular artery
Blood supply of teres major
Subscapular artery, circumflex scapular artery
Blood supply of teres minor
Subscapular artery, circumflex scapular artery
Blood supply of infraspinatus
Circumflex scapular artery, suprascapular artery
Blood supply of supraspinatus
Suprascapular artery
Blood supply of subscapularis
Subscapular artery
Action of subclavius
Anchors and depresses clavicle
Action of pectoralis major
Adduction, medial rotation, flexion of humerus,
anterior and inferior motion of the scapula
Action of pectoralis minor
Stabilization of scapula
Action of serratus anterior
Protraction of scapula, rotation of scapula
Action of levator scapulae
Elevation of scapula, tilts glenoid cavity inferiorly via rotation of scapula
Action of trapezius
Elevation, depression, retraction of scapula. Rotation of glenoid cavity superiorly
Action of rhomboid major
Retraction and rotation of scapula to depress glenoid cavity. Fixation of scapula
Action of rhomboid minor
Retraction and rotation of scapula to depress glenoid cavity. Fixation of scapula
Action of deltoid
Flexion, abduction, extension, lateral rotation, medial rotation of humerus
Action of latissimus dorsi
Extension, adduction, medial rotation of humerus. Raises body towards arms during climbing
Action of teres major
Adductions and medial rotation of humerus
Action of teres minor
Lateral rotation of humerus, acts with rotator cuff
Action of infraspinatus
Lateral rotation of humerus, acts with rotator cuff
Action of supraspinatus
Abduction of humerus, acts with rotator cuff
Action of subscapularis
Medial rotation and adduction of humerus, acts with rotator cuff