Anatomy Test 2 Flashcards
· Transverse Pectoral origin and Insertion
O: 1st 3 sternebrae
I: crest of the greater tubercle of the humerus
Cleidomastoideus Origin and Insertion
Origin: clavicular intersection
Insertion: mastoid process of the skull
Cleidocervicalis Origin and Insertion
Origin: clavicular intersection
Insertion: dorsal midline of neck
Descending Pectoral O& I
O: 1st sternebrae
I: crest of the greater tubercle
Cleidobrachialis O&I
O: clavicular intersection
I: distal end of the cranial border of humerus
Deep pectoral O&I
O: Sternum
I: lesser tubercle of the humerus
Action of pectoral muscles
Adduct forearm and prevent abduction when weight bearing
Action of brachiocephalicus muslces
Advance limb and extend shoulder joint; draw head and neck to the side
Omotransversarius O&I
O:atlas
I:distal end of spine of scapula
Omotransversarius action
Advance limb and flex neck laterally
Trapezius O&I
O: median raphe, supraspinous ligament (C3-T9)
I: Spine of scapula
Trapezius Action
Elevates and abducts forelimb. helps hold scapula to body if weight bearing
Rhomboideus Capitis O&I
O: Nuchal crest
I; Dorsal border of scapula
Rhomboideus Cervicis O&I
O:Median Raphe of neck
I:Dorsal of scapula
Rhomboideus Thoracis O&I
O: Spinous process T1-T7
I: Dorsal border of scapula
Rhomboideus Action
Elevate forelimb and draw scapula against trunk
Latissimus Dorsi O&I
O: spinous process of lumbar and thoracic vertebrate
I: teres major tuberosity
Latissimus Dorsi action
Move limb caudally-flex shoulder
Sternocephalicus
O: Manubrium
Insertion:
Mastoid part-mastoid part of temporal bone
Occipital part-Nuchal crest of the occipital bone