chapter 5 sports med

the scapulothoracic joint is a true synovial joint

false

an action that can happen with the scapulothoracic joint is:

scapular elevation and scapular depression

the trapezius muscle has multiple different origins

true

what is the origin of the levator scapulae?

transverse processes of upper four cervical vertebrae (C1-C4)

with shoulder joint flexion, what is the accompanying movement of the shoulder girdle?

elevation or upward rotation

what is the insertion of the rhomboid muscle?

medial border of scapula below spine

moving the shoulder anteriorly with the shoulder girdle is also known as:

protraction and scapular abduction

moving the shoulder posteriorly with the shoulder girdle is also known as:

scapular adduction and retraction

when going up in a jumping jack, what is the scapula doing?

upward rotation

what is the accompanying shoulder girdle action when internal rotation of the shoulder joint occurs?

abduction or protraction

what bone is the only attachment between the upper extremity and the axial skeleton?

clavicle

what is the joint of the shoulder girdle

scapulothoracic

what is the projection at “A”?

acromion process

what is the area at point “B”?

acromioclavicular joint

what is the projection at point “C”?

coracoid process

what is the area at point “D”?

glenohumeral joint

what is the bone at point “E”?

clavicle

what is this scapular motion?

elevation

what is this scapular motion?

depression

what is this scapular motion?

abduction / protraction

what is this scapular motion?

upward rotation

what is this scapular rotation?

adduction / retraction

what is an agonist muscle of shoulder elevation, “A”?

levator scapulae

what are the two agonist muscles of shoulder adduction / retraction, “B”?

trapezius or rhomboids

what is an agonist muscle of shoulder depression, “D”?

pectoralis minor

what is an agonist muscle of shoulder abduction / protraction, “C”?

serratus anterior

what is the origin of the pectoralis minor muscle?

ribs 3-5

what is the insertion of the serratus anterior muscle?

medial scapular border

what is one insertion of the trapezius muscle?

spine of the scapula

what is this cavity?

glenoid fossa

what is the insertion of the levator scapula muscle?

superior angle of the scapula

what is the origin of the rhomboid muscles?

spinous process C7-T5