Proximal Force couple

Question 1

what joint does the proximal force couple affect

Answer 1

scapulothoracic joint

Question 2

what muscles are involved in the proximal force couple

Answer 2

• trapezius
• levator scapulae
• rhomboids
• pectoralis minor
• serratus anterior

Question 3

what does the proximal force couple do

Answer 3

upward rotation of the scapula or shoulder blade when raising arms

Question 4

draw proximal force couple

Answer 4

Question 5

origin and insertion of Trapezius

Answer 5

origin
occipital bone, ligamentum nuchae, spinous processes of vertebrae C7-12
insertion
lateral 1/3 clavicle, acromion, spine of scapula

Question 6

origin and insertion levator scapulae

Answer 6

origin - transverse processes of C1-4
insertion - superior aspect medial border of scapula

Question 7

origin and insertion of Rhomboids

Answer 7

origin
major - spinous processes of vertebrae T2-5
Minor- C7-T1
insertion - medial border of scapula
maj - below scapula spine
min - above scapula spine

Question 8

origin and insertion of pectoralis minor

Answer 8

origin - ribs 3-5
insertion - coracoid process

Question 9

origin and insertion of serratus anterior

Answer 9

origin - ribs 1-9
insertion - medial border of scapula