Upper limb muscles from spine

Question 1

What are the upper limb muscles from spine?

Answer 1

superficial:
trapezius
lattimus dorsi

deep: 
rhomboid major
rhomboid minor
levator scapulae
serratus anterior

Question 2

What are the attachments and actions of trapezius?

Answer 2

origin: skull + all thoracic vetebrae
insert: acromion+spine of scapula, lateral 1/3 of clavicle

actions: retract and elevate scapula, upward rotation of scapula

Question 3

What are the attachments and actions of lattimus dorsi?

Answer 3

origin: spinous processes of thoracic, 9-12 ribs, lumbar and sacral vetebra
insert: floor of inter tubercular groove of humerus

actions: extends, adduct, laterally rotate arm at shoulder

Question 4

What are the attachments and actions of rhomboid major?

Answer 4

origin: spinous process of thoracic vetebrae
insert: medial border of scapula inferior to spine

actions: retracts and elevate medial border of scapula while downwardly rotating lateral angle

Question 5

What are the attachments and actions of rhomboid minor?

Answer 5

origin: spinous process of c7-t1
insert: medial border of scapula superior to spine

action: retract and elevate medial border of scapula while downwardly rotating lateral angle

Question 6

What are the attachments and actions of levator scapulae?

Answer 6

origin: transverse process of c1-c4
insert: medial border of scapula between spine and superior angle

actions: pulls scapula upward and medially, bends neck laterally

Question 7

What are the attachments and actions of serratus anterior?

Answer 7

origin: anterior surface of 8-9 ribs
insert: anterior surface of medial border of scapula

actions: protract scapula, upward rotate while abducting arm

paralysis of serratus anterior causes winging of scapula

Question 8

Which muscles contribute to the retraction of scapula?

Answer 8

rhomboids, trapezius

Question 9

Which muscles contribute to the elevation of scapula?

Answer 9

levator scapulae, rhomboids, trapezius