Origin: spinous process of about the thirds to the sixth thoracic vertebrae.

Insertion: upper two to four cervical transverse processes.

Innervation: Dorsal Rami

Function: extension and lateral flexion of the head and neck 

SPLENIUS CAPITIS

Origin, insertion, innervation and function?

Origin: lower half of the ligamentum nuchae and spinous processes of the 7th cervical vertebrae and upper 3-4 thoracic vertebrae.

Insertion: skull

Innervation: Dorsal rami 

Function: extension and lateral flexion of the head and neck. 

ERECTOR SPINAE MUSCLES

Origin, insertion, innervation and function? 

contains:  (medial to lateral) Spinalis, Longissimus, Iliocostalis

origin: sacrum, iliac crest and spinous processes of the lumbar vertebraes

Insertion:???

functions: hold you up straight 

TRAPEZIUS

Origin: Occipital bone; ligamentum nuchae; spinous processes C7-T12

Insertion: Clavicle; acromion and spine of scapula

Innervation: Accesory N.

Functions: Elevates and retracts scapula

LEVATOR SPAPULAE

Origin: transverse process of C1-C4

Insertion: superior medial border of scapula

Function: elevates the scapula

RHOMBOID MINOR

Origin: Ligamentum nuchae, Spinous Process of C7-T1

Insertion: Medial border of the scapula

Innervation: Dorsal scapular n.

Functions: retracts scapula

RHOMBOID MAJOR

Origin: Spinous process of T2-T5

Insertion: Medial border of scapula

Function: retracts scapula

SERRATUS ANTERIOR

Origin: Ribs 1-8

 Insertion: Anterior medial border of the scapula

Function: holds scapula in place and protracts it.

SUBCLAVIUS

Origin: Junction of first rib and it's costal cartilage

Insertion: inferior surface of the clavicle

Function: fixes scapula, cushions vessels

PECTORALIS MINOR

Origin: Ribs 3-5

Insertion: corocoid process of scapula

Function: Protracts scapula

PECTORALIS MAJOR

Origin: Medial clavicle; sternum; costal cartilage of ribs #2-6

Insertion:Crest of greater tubercle

Function: Flexes, Adduct, & medially rotates humerus

LATISSIMUS DORSI

Origin: Spinous processes of T7-T12; thoracolumbar fascia; iliac crest

Insertion: intertubercular sulcus

Function: Adduct, extend and medially rotates the humerus

SUBSCAPULARIS

Origin: subscapular fossa

Insertion: Lesser tubercle of the humerus

Function: medial rotation of humerus

(Part of the rotator cuff)

SUPRASPINATUS

Origin: Supraspinous fossa

Insertion: Greater tubercle of humerus

Function: Abduct humerus

(part of the rotator cuff)

INFRASPINATUS

Origin: Infraspinous fossa

Insertion: Greater tubercle of the humerus

Function: lateral rotation of humerus

(part of the rotator cuff)

TERES MINOR

Origin: Lateral border of the scapula

Insertion: greater tubercle of humerus

Innervation: axillary n.

Function: lateral rotation of humerus

(part of the rotator cuff)

TERES MAJOR

Origin: inferior angle of the scapula

Insertion: Crest of lesser tubercle of the humerus

Function: adducts, extends and medially rotates arm

DELTOID

Origin: Acromial end of clavicle; acromion and spine of scapula

Insertion: Deltoid tuberosity of humerus

Innervation: Axillary n.

Functions: (Anterior) flexes humerus (Lateral)  abducts humerus (Posterior) extends humerus

COROCOBRACHIALIS

Origin: corocoid process of scapula

Insertion: medial humerus

Innervation: musculocutaneousn.

Function: flexion and adduction of humerus

BICEPS BRACHII SHORT HEAD

Origin: coracoid process of scapula

insertion: radial tuberosity

Innervation: musculocutaneous n.

Function: flexes and supinates forearm

BICEPS BRACHII LONG HEAD (more lateral than short head)

Origin: supraglenoid tubercle of scapula

insertion: radial tuberosity

Innervation: musculocutaneous n.

Function: Suppinates and flexes forearm.

BRACHIALIS

Origin: Distal anterior humerus

Insertion: Ulnar tuberosity, coronoid process of ulna

Innervation: musculocutaneous n.

Functions: flexes elbow

TRICEPS BRACHII (longhead)

Origin: infraglenoid tubercle of scapula

insertion: olecranon process of the ulna

innervation: radial n.

Functions: extends forearm

TRICEPS BRACHII (lateralhead)

Origin: Middle posterior humerus

insertion: olecranon process of the ulna

innervation: radial n.

TRICEPS BRACHII (medial head)

Origin: Distal posterior humerus

insertion: olecranon process of the ulna

innervation: radial n.

PRONATOR TERES

Origin:Medial epicondyle humerus; coronoid process ulna

Insertion: lateral surface of radius

Innervation: Median n.

Function: Pronates forearm and flexes elbow

PRONATOR TERES

Origin:Medial epicondyle humerus; coronoid process ulna

Insertion: lateral surface of radius

Innervation: Median n.

Function: Pronates forearm and flexes elbow

FLEXOR CARPI RADIALIS

Origin: Medial epicondyle of humerus

Insertion:Palmer surface metacarpal II and III

Innervation: Median n.

Function: flexes wrist and abducs hand

FLEXOR CARPI RADIALIS

Origin: Medial epicondyle of humerus

Insertion:Palmer surface metacarpal II and III

Innervation: Median n.

Function: flexes wrist and abducs hand

PALMARIS LONGUS

Origin: Medial epicondyle of the humerus

Insert: Palmar aponeurosis

Innervation: Median n.

Function: flexes wrist

PALMARIS LONGUS

Origin: Medial epicondyle of the humerus

Insert: Palmar aponeurosis

Innervation: Median n.

FLEXOR CARPI ULNARIS

Origin: Medial epicondyle of humerus; olecranon of ulna

Insert: pisiform, hamate and 5th metacarpal

Innervation: Ulnar n.

Function: flexes wrist and adducts hand

FLEXOR CARPI ULNARIS

Origin: Medial epicondyle of humerus; olecranon of ulna

Insert: pisiform, hamate and 5th metacarpal

Innervation: Ulnar n.

Function: flexes wrist and adducts hand

FLEXOR DIGITORUM SUPERFICIALIS

Origin: Medial epicondyle of humerus; coronoid process ulna; proximal anterior radius

Insertion: Middle phalanges of  digits 2-5

Innervation: median n.

Function: Flexes digits 2-5 and flexes wrist

FLEXOR DIGITORUM SUPERFICIALIS

Origin: Medial epicondyle of humerus; coronoid process ulna; proximal anterior radius

Insertion: Middle phalanges of  digits 2-5

Innervation: median n.

Function: Flexes digits 2-5 and flexes wrist

BRACHIORADIALIS

 Origin: Lateral epicondyle of humerus

Insertion: Styloid process radius

Innervation: Radial n.

Function: flexes elbow joint

BRACHIORADIALIS

 Origin: Lateral epicondyle of humerus

Insertion: Styloid process radius

Innervation: Radial n.

EXTENSOR CARPI RADIALIS LONGUS

Origin: Lateral epicondyle of humerus

Insertion: Dorsal surface metacarpal II

Innervation: Radial n.

Function: Extends writst and abducts hand

EXTENSOR CARPI RADIALIS LONGUS

Origin: Lateral epicondyle of humerus

Insertion: Dorsal surface metacarpal II

Innervation: Radial n.

Function: Extends writst and abducts hand

EXTENSOR CARPI RADIALIS BREVIS

Origin: Lateral epicondyle of humerus

Insert: Dorsal surface metacarpal III

Innervat: radial n.

Function: Extends wrists and abducts hand

EXTENSOR CARPI RADIALIS BREVIS

Origin: Lateral epicondyle of humerus

Insert: Dorsal surface metacarpal III

Innervat: radial n.

Function: Extends wrists and abducts hand

EXTENSOR DIGITORUM

Origin: Lateral epicondyle of humerus

Insert: Dorsal surface digits 2-5

Innervate: Radial n.

Function: Extends fingers and wrist

EXTENSOR DIGITI MINIMI

Origin: Lateral epicondyle of humerus

Insert: Dorsal surface digit #5

Innervate: radial n.

Function: Extends 5th digit and wrist

EXTENSOR DIGITI MINIMI

Origin: Lateral epicondyle of humerus

Insert: Dorsal surface digit #5

Innervate: radial n.

Function: Extends 5th digit and wrist

EXTENSOR CARPI ULNARIS

Origin: Lateral epicondyle of humerus

Insert: base of 5th metatarsal

Innervate: radial n.

Function: Extends wrists and adducts hand

EXTENSOR CARPI ULNARIS

Origin: Lateral epicondyle of humerus

Insert: base of 5th metatarsal

Innervate: radial n.

Function: Extends wrists and adducts hand

ANCONEUS

Origin: Lateral epicondyle of humerus

Insert: Olecranon of ulna

Innervate: radial n.

Function: Extesion of forearm (elbow).

ANCONEUS

Origin: Lateral epicondyle of humerus

Insert: lateral surface of olecranon, proximal part and posterior ulna

Innervate: radial n.

SUPINATOR

Origin: Lateral epicondyle humerus, proximal ulna

Insertion:Proximal 1/3 radius

Innervation: radial n.

functions:  Supinates forearm