muscles attachments and movements

Attachment points of rhomboideus major muscle

Proximal: spinous process of T2-T5

Distal: Medial border of Scapula below the spine

Action of rhomboideus major

scapular adduction or retraction

and downward rotation

what nerve innervates Rhomboideus major

dorsal scapular nerve

Attachment points of rhomboideus minor

proximal: c7 and T1 spinous process

distal: medial border by spine of scapula

what motion does the rhomboideus minor

adduction of scapula, downward rotation, elevation

what nerve innervates the rhomboideus minor

dorsal scapular nerve

Attachment points of levator scapulae

proximal: c1-c4 transverse process

distal: medial border above spine and superior angle

motion of levator scapulae

elevates scapulae

what nerve innervates the levator scapulae

dorsal scapular nerve

Attachment points of trapezius

proximal: external occipital protuberance, spinous processes of C7-T12

distal: spine and acromion of scapula, lateral third of clavicle

movements of trapezius

elevated clavicle and upward rotation of scapula. adduction of scapula. extends and stabilizes head

what nerve innervates the trapezius

Accessory Crainial nerve 11

what muscles attach to the medial border of the scapula

rhomboideus major, rhomboideus minor, levator scapulae

Attachment points of serratus anterior

proximal: lateral aspect of ribs 1-9

distal: anterior side of medial border including inferior and superior angle

Movements of serratus anterior

adduction and upward rotation of scapula

which nerve innervates serratus anterior

Long thoracic nerve

Attachment points of pectoralis minor

proximal: anterior ribs 3-5

distal: medial side of coracoid process

movement of pectoralis minor

adduction of scapula and downward rotation

what nerve innervates pectoralis minor

medial and lateral pectoral nerve

what muscles work together for smooth abduction of the scapula

serratus anterior and pectoralis minor

Attachment points of subclavius

proximal: superior anterior part of 1st ribs

distal: middle inferior border of clavicle

movement of subclavius

stabilizes sternalclavicular joint and downward rotation

innervation of subclavius

subclavius nerve

what muscles are included in the scapular sling

rhomboideus major, rhomboideus minor, trapezius, pectoralis minor, subclavius, serratus anterior, levator scapulae

what are common attachments of the scapular sling

medial borders sand spinous process

what are common movements of the scapular sling

abduction of scapula

what is the overall purpose of the scapular sling

stabilize the scapula

Attachment points of infraspinatus

proximal: medial infraspinous fossa distal

distal: middle greater tubercle

movement of infrasinatus

lateral rotation

what nerve innervates infraspinatus

suprascapular nerve

Attachment points of supraspinatus

proximal: supraspinous fossa

distal: greater tubercle of humerus

movement of supraspinatus

slight shoulder abduction

what nerve innervates supraspinatus

suprascapular

Attachment points of teres minor

proximal: upper lateral border of scapula

distal: bottom of greater tubercle

movements of teres minor

lateral rotation

what muscles sit on the greater tubercle

supraspinatus, infraspinatus, teres minor

innervation of teres minor

axillary nerve

Attachment points of subscapularis

proximal: subscapular fossa

distal: lesser tubercle

movements of subscapularis

medial rotation

what nerve innervates subscapularis

upper and lower subscapular nerve

what muscles are included in the rotator cuff

supraspinous, infraspinous, teres minor, subscapularis

what is the overall function of the rotator cuff muscle

stabilizes the shoulder because it is the most mobile joint in the body

attachments of coracobrachialis

Prox: apex of coracoid process

distal: medial border of humerus

movements of coracobrachialis

shoulder flexion

what nerve innervates coracobrachialis

musculocutaneous nerve

attachments of brachiallis

proximal: anterior distal half of humerus

distal: 1. coranoid process and ulnar tuberosity

movements of brachialis

elbow flexion

what nerve innervates brachialis

musculocutaneous

attachments of biceps brachii

proximal: coracoid process and supraglenoid tubercle

distal: radial tuberosity

movement of biceps brachii

elbow flexion and supination

what nerve innervates the biceps brachii

musculocutaneous

what are the anterior arm muscles

biceps brachii, coracobrachialis, brachialis

attachments of triceps brachii

proximal: 1. infraglenoid tubercle 2. proximal third of humerus 3. distal 2/3 of humerus

distal: olecranon process on ulna

movement of triceps brachii

elbow extensor

what nerve innervates the triceps brachii

radial nerve

Movements of pronator teres

Radius pronator

what nerve innervates pronator teres

median nerve

!!!! What muscle is this

pronator teres

Movements of flexor carpi radiallis muscle

Wrist flexion

What nerve innervates flexor carpi radiallis muscle

Median nerve

!!!!What muscle is this

flexor carpi radiallis muscle

movements of the palmaris longus muscle

wrist flexion

What nerve innervates palmaris longus muscle

Median nerve

What muscle is this

palmaris longus muscle

Movements of the flexor carpi ulnaris

Wrist flexion (On ulnar side)

What nerve innervates the flexor carpi ulnaris muscle

ulnar nerve

What muscle is this

flexor carpi ulnaris muscle

Movements of the flexor digitorum superficialis muscle

wrist flexion, MP joint flexion, Proximal IP joint flexion

what nerve innervates flexor digitorum superficialis muscle

Median nerve

what muscle is this

flexor digitorum superficialis muscle

Movements of the flexor digitorum profundus

Wrist flexion, MP joint flexion, Proximal and Distal IP Joint flexion

What nerve innervates the flexor digitorum profundus

Ulnar nerve

What muscle is this

flexor digitorum profundus

What muscle is this

flexor pollicis longus

what muscle is this

pronator quadratus muscle

rhombodieus major

rhombodius minor

trapezius

serratus anterior

pectoralis minor

subclavius

supraspinatus

infraspinatus

teres minor

subscapularis

pectoralis major

teres major

latissimus dorsi

coracobrachialis

brachialis

biceps brachii

triceps brachii

brachioradialis

extensor carpi radialis longus

extensor carpi radialis brevis

extensor digitorum

extensor digiti minimi

extensor carpi ulnaris

supinator

aconceus