Test 6

Question 0

Pectorals minor

Answer 0

Origin: ribs 3-5
Insertion: coracoid process of scapula
Action: abducts scapula and rotates it downward. RMA: elevates 3 through 5 rib during forced breathing when scapula is fixed

Question 1

Subclavis

Answer 1

Origin: first rib
Insertion: clavicle
Action: depress and moves clavicle anteriorly and helps stabilize pectoral girdle

Question 2

Serratus Anterior

Answer 2

Origin: superior 8 or 9 rib
Insertion: vertebral border and inferior angle of scapula
Action: Abducts scapula and rotates it upward. RMA: elevates ribs when scapula is stabilized

Question 3

Trapezius

Answer 3

Origin: superior Nuchal line of occipital bone, ligamentum nuchae, and spines C7-T12
Insertion: clavicle and acromion and spine of scapula
Action: superior fibers upward rotate scapula; middle fibers adduct scapula; inferior fibers depress and upward rotate of scapula; superior and inferior fibers together rotate scapula upward, stabilized scapula; RMA: superior fibers can help extend the head

Question 4

Levator scapulae

Answer 4

Origin: TP of C1-C4
Insertion: superior vertebral border of scapula.
Action: elevates scapula and rotates it downward

Question 5

Rhomboid major

Answer 5

Origin: Spines T2-T5
Insertion: vertebral border of scapula inferior of spine
Action: elevates and adducts scapula and orates it downward; stabilizes scapula

Question 6

Rhomboid minor

Answer 6

Origin: spines of C7- T1
Insertion: vertebral border of scapula superior to spine
Action: elevates and adducts scapula and rotates it downward; stabilized scapula