Final Exam Flashcards
Trapezius Origin
Base of skull (occipital protuberance), posterior ligaments of neck, spinous processes of C7- T12
Trapezius Insertion
C.A.SS
posterior aspect of the lateral third of clavicle, Medial border of acromion process and upper border of scapular spine, Triangular space at base of scapular spine
Trapezius Action
Upper: Elevation, Upward rotation, Extension of head at neck, Rotation of head at neck Middle: Elevation, Adduction, Upward rotation Lower: Adduction, Depression, Upward Rotation
Rhomboid minor and major Origin
C7-T5
Rhomboid Minor and MAJ. Insetion
Medial border of the scapula below the spine
Rhomboid Minor and MAJ. action
Adduction, Downward rotation, Elevation
Deltoid Origin
C.A.SS
Anterior lateral third of clavicle, lateral aspect of acromion, inferior edge of spine of scapula
Deltoid Insertion
Deltoid tuberosity on lateral humerus
Deltoid Action
Anterior- Abduction, Flexion, Horizontal adduction,
internal rotation, diagonal adduction
Middle- Abduction, Horizontal abduction
Posterior- Abduction, Horizontal abduction, External rotation, Diagonal abduction
Latissimus Dorsi Origin
Posterior crest of ilium, back of sacrum and spinous processes of lumbar and lower six thoracic vertebrae, slips from lower three ribs
Latissimus Dorsi Insertion
Medial lip of inter-tubercular groove of humerus
Latissimus Dorsi Action
Extension, Adduction, Internal rotation, Horizontal Abduction
Coracobrachialis Origin
Coracoid process of the scapula
Coracobrachialis Insertion
Middle of the medial border of the humeral shaft
Coracobrachialis Action
Horizontal adduction,
Diagonal Adduction
Subscapularis Origin
entire anterior surface of sub scapular fossa
Subscapularis Insertion
lesser tubercle of humerus
Subscapularis Action
Internal rotation, adduction, extension
Supraspinatus Origin
Medial two thirds of supraspinous fossa
Supraspinatus Insertion
Superiorly on greater tubercle of humerus
Supraspinatus Action
Abduction
Biceps Femoris Origin
long head: ischial tuberosity
short head: lower half of the line aspera, and lateral condyloid ridge
Biceps femoris insertion
lateral condyle of the tibia and head of the fibula
Biceps femoris action
flexion of the knee, extension of the hip, external rotation of the hip and flexed knee, posterior pelvic rotation