A&P Lab E: Muscles Operating on the Scapula and Shoulder
Where does the rhomboid minor originate and insert?
origin = vertebrae C7 - T1 insertion = scapula: medial border
What does the rhomboid minor elevate?
scapula and shoulder
What does the trapezius depress?
scapula and shoulder
What does the trapezius elevate?
scapula and shoulder
what does the pectoralis minor depress?
scapula and shoulder
what muscle inserts at the medial border of the scapula
serratus anterior
What does the rhomboid minor retract?
shoulder
what does the pectoralis minor protract?
shoulder
Where does the serratus anterior originate and insert?
Origin = Ribs Insertion = Scapula: medial border
Where does the pectoralis minor originate and insert?
Origin = Ribs: R3 - R5 Insertion: Scapula: coracoid process
Where does the levator scapula originate and insert?
Origin = Vertebrae C1 - C4 Insertion = Scapula: superior angle, medial border
What are the two muscles that depress Scapula & Shoulder and Abduct Scaupla & Protract Shoulder?
Pectoralis minor (b) Serratus anterior (c)
What muscle originates at vertebrae C7 - T1?
Rhomboid minor
What 2 muscles elevate the scapula & shoulder and adduct the scapula & retract the shoulder?
Rhomboid minor and Rhomboid major
What muscle elevates the scapula and shoulder?
levator scapulae
What does the rhomboid major elevate?
scapula and shoulder
what does the serratus anterior protract?
shoulder
what does the trapezius retract?
shoulder
what muscle inserts at the acromion & spine of scapula, Clavicle?
trapezius
what muscle originates at the occipital and vertebrae?
trapezius
What muscle elevates or depresses the scapula & shoulder and adducts the scapula and retracts the shoulder?
Trapezius
what are the three actions of the pectoralis minor?
depress scapula & shoulder abduct scapula & protract shoulder
what muscle inserts at the superior angle and medial border of the scapula?
levator scapulae
what muscle originates at vertebrae C1 - C4?
levator scapulae
Where does the trapezius originate and insert?
origin = occipital & vertebrae insertion = acromion & spine of scapula, clavicle
Where does the rhomboid major originate and insert?
origin = vertebrae: T2 - T5 insertion = scapula medial border
What muscle inserts at the coracoid process of the scapula?
pectoralis minor
What muscle originates at Ribs 3 - 5?
pectoralis minor
What muscle originates at vertebrae T2 - T5?
rhomboid major
What 2 muscles insert at the medial border of the scapulae?
rhomboid minor(c) and rhomboid major (d)
What does the rhomboid major adduct?
scapula
What does the rhomboid minor adduct?
scapula
what does the pectoralis minor abduct?
scapula
what does the serratus anterior abduct?
scapula
what does the trapezius adduct?
scapula
What does the levator scapulae elevate?
scapula and shoulder
what does the serratus anterior depress?
scapula and shoulder
what muscle originates at the ribs (non specific)?
serratus anterior
What does the rhomboid major retract?
shoulder
