Muscles of the Scapula

Question 1

Origin: Upper 8 or 9 Ribs
Insertion: Anterior medial border of the scapula

Answer 1

Serratus Anterior

Question 2

What direction (plane) do most of the fibers of the serratus anterior run?

Answer 2

Transverse

Question 3

Which joint actions do the serratus anterior contribute to?

Answer 3

protraction and retraction

Question 4

When the serratus anterior shortens which directions will it pull the scapula?

Answer 4

forward/protraction

Question 5

What might the serratus anterior do in the frontal plane?

Answer 5

Upward Rotation (Frontal Plane) by pulling the inferior angle forward and up

Question 6

Joint the serratus anterior crosses:

Answer 6

scapula (shoulder girdle)

Question 7

Origin: ribs 3, 4 and 5
insertion: coracoid process

Answer 7

pectoralis minor

Question 8

What direction (plane) do the fibers of the pectoralis minor pull?

Answer 8

down

Question 9

Joint the pectoralis minor crosses

Answer 9

scapula (shoulder girdle)

Question 10

actions of the pectoralis minor:

Answer 10

depression, downward rotation, protraction, and anterior tipping

Question 11

Origin: external occipital protuberance of the skull, spinous process c7 and t1-t12
Insertion: acromion process, spine of the scapula and lateral 1/3 of clavicle

Answer 11

trapezius

Question 12

what joint actions occur in the upper trapezius?

Answer 12

upward rotation and elevation

Question 13

which direction do the fibers of the upper trapezius pull?

Answer 13

up

Question 14

what joint action occurs in the middle trapezius?

Answer 14

retraction

Question 15

which direction do the fibers of the lower trapezius pull?

Answer 15

down

Question 16

which joint action occurs in the lower trapezius?

Answer 16

depression (not downward rotation) and upward rotation

Question 17

Origin: Transverse process of C1-C4
Insertion: Superior medial border of scapula

Answer 17

levator scapulae

Question 18

What action does the name of the levator scapulae imply?

Answer 18

elevation

Question 19

joint that the elevator scapulae crosses:

Answer 19

scapulae

Question 20

actions of the elevator scapulae:

Answer 20

elevation and downward rotation

Question 21

Origin: Spinous processes of C7-T5
Insertion: Medial border of the scapula

Answer 21

Rhomboids

Question 22

Which joint action are the rhomboids contracting best at?

Answer 22

retraction

Question 23

If the rhomboids are lengthened in upward rotation, what joint action could they contribute to while shortening?

Answer 23

downward rotation

Question 24

joint the rhomboids cross:

Answer 24

scapula

Question 25

actions of the rhomboid:

Answer 25

retraction, downward rotation and elevation

Question 26

plane, muscles responsible and sample exercise: scapula elevation

Answer 26

frontal upper trapezius, levator scapulae, rhomboids shrugs

Question 27

plane, muscles responsible and sample exercise: scapula depression

Answer 27

frontal lower trapezius, pectoralis minor end of a dip, bottom of lat pull down, functional push up

Question 28

plane, muscles responsible and sample exercise: scapula downward rotation

Answer 28

frontal pectoralis minor, levator scapulae, rhomboids lat pull down, pull up

Question 29

plane, muscles responsible and sample exercise: scapula upward rotation

Answer 29

frontal upper traps, lower traps, serratus anterior overhead press, lateral raise

Question 30

plane, muscles responsible and sample exercise: scapula protraction

Answer 30

transverse pectoralis minor, serratus anterior bench press, push up and all pushing motion

Question 31

plane, muscles responsible and sample exercise: scapula retraction

Answer 31

transverse middle traps, rhomboids rowing and all pulling motions

Question 32

plane, muscles responsible and sample exercise: scapula anterior tipping

Answer 32

sagittal pectoralis minor, levator scapulae, upper traps end of shoulder extension

Question 33

plane, muscles responsible and sample exercise: scapula posterior tipping

Answer 33

sagittal lower traps, serratus anterior end of shoulder flexion