Knes 191A Lab Exam #2

What are the SITS muscles?

S - supraspinatus

I - infraspinatus

T - teres minor

S - subscapularis

(flatter end)

acromioclavicular joint

(round end)

sternoclavicular joint

(most anterior)

Coracoid process

(most posterior)

acromion process

(anterior only)

subscapular fossa

lateral border (axillary border)

medial border (vertebral border)

inferior angle

superior angle

(lateral view only)

glenoid fossa

(posterior view only)

supraspinous fossa

(always posterior) (always capitalize S)

Spine

(always posterior)

infraspinous fossa

(capitalize H)

Head

greater tubercle

(anterior only)

intertubercular groove

lesser tubercle

(rough part)

deltoid tuberosity

(anterior only)

coronoid fossa

(same side as greater tubercle)

lateral epicondyle

(same side as Head)

medial epicondyle

(anterior, lateral)

capitulum

(anterior, medial)

trochlea

(posterior)

olecranon fossa

What are the 4 functions of the shoulder girdle?

• elevation

• depression

• protraction

• retraction

What are the 2 bones of the shoulder girdle?

clavicle & scapula

trapezius

What are the actions of the trapezius?

• elevation, depression, retraction (scapula)

• elevation (clavicle)

(seen anterior & posterior)

serratus anterior

What is the action of the serratus anterior?

protraction

levator scapulae (posterior)

levator scapulae (anterior)

What is the action of the levator scapulae?

elevation

rhomboid minor

What are the actions of the rhomboid minor?

retraction & elevation (scapula)

rhomboid major

What are the actions of the rhomboid major?

retraction & elevation (scapula)

pectoralis minor

What are the actions of the pectoralis minor?

protraction & depression

subclavius

What are the action of the subclavius?

depression & protraction

What are the 2 bones of the shoulder joint (glenohumeral)?

humerus & scapula

pectoralis major

What are the function of the pectoralis major?

flexion, adduction, & medial rotation

What are the 6 actions of the shoulder joint (glenohumeral)?

flexion, extension, adduction, abduction, medial rotation, & lateral rotation

deltoid

What is the action of the anterior deltoid?

flexion, medial rotation, & abduction

What is the function of the posterior deltoid?

extension, lateral rotation, & abduction

coracobrachialis

What are the functions of the coracobrachialis?

flexion & adduction

subscapularis

What is the function of the subscapularis?

medial rotation

latissimus dorsi

What are the functions of the latissimus dorsi?

extension, adduction, & medial rotation

supraspinatus

What is the function of the supraspinatus?

abduction

infraspinatus

What is the function of the infraspinatus?

lateral rotation

triceps brachii

What is the function of the triceps brachii?

extension (shoulder)

teres minor

What is the function of the teres minor?

lateral rotation

teres major

What are the functions of the teres major?

extension, adduction, & medial rotation