
M. brachiocephalicus
Origin: Distal humerus, crista humeri
Insertion: Head, neck
Action: Extend shoulder, tense neck

M. cleidobrachialis
Origin: Intersectio clavicularis
Insertion: Crista humeri
Action: Extend shoulder, lateral + ventral head movement

M. cleidocephalicus
Origin: Intersectio clavicularis
Insertion: (See muscle parts)
Action: Extend shoulder, lateral + ventral head movement

M. omotransversarius
Origin: Spina scapulae, fascia brachii
Insertion: Ala atlantis
Action: Draws shoulder cranially

M. cleidocervicalis (Ca)
Origin: Intersectio clavicularis
Insertion: Dorsal midline of raphe cervicis
Action: Extend shoulder, lateral + ventral head movement

M. sternooccipitalis
Origin: Manubrium sterni
Insertion: Crista nuchae
Action: Flex head + neck

M. cleidomastoideus
Origin: Intersectio clavicularis
Insertion: Proc. mastoidea
Action: Extend shoulder, lateral + ventral head movement

M. sternomastoideus
Origin: Manubrium sterni
Insertion: Proc. mastoidea
Action: Flex head + neck

M. sternocephalicus
Origin: Manubrium Sterni
Insertion: (See muscle parts)
Action: Flex head + neck

Lc. cervicale superficiale

A. cervicalis superficialis

A. suprascapularis

R. deltoideus

R. acromialis

Rr. ascendens

N. accessorius (CN-XI)
Innervates:

N. accessorius (CN-XI)
Innervates:

N. accessorius (CN-XI)
Innervates:

M. cleidocervicalis (Ca)
Origin: Intersectio clavicularis
Insertion: Dorsal midline of raphe cervicis
Action: Extend shoulder, lateral + ventral head movement

M. omotransversarius
Origin: Spina scapulae, fascia brachii
Insertion: Ala atlantis
Action: Draws shoulder cranially

M. cleidomastoideus
Origin: Intersectio clavicularis
Insertion: Proc. mastoidea
Action: Extend shoulder, lateral + ventral head movement

M. sternocephalicus
Origin: Manubrium Sterni
Insertion: (See muscle parts)
Action: Flex head + neck

R. prescapularis

R. prescapularis