DIMENSIONAL MAN: HEAD & NECK

#1 Epicranius (Frontalis and Galea Aponeurotica)

Origin: Galea Aponeurotica

Insertion: Skin Eyebrows

Action: Raises Eyebrows

#2 Levator Labii Superioris

Origin: Zygomatic Bone

Insertion: Skin of Lip

Action: Opens Lips

#3 Orbicularis Oris

Origin: Mandible

Insertion: Skin of Mouth

Action: Closes Lips

#4 Depressor Labii Inferiors

Origin: Mandible

Insertion: Skin of Lip

Action: Draws lip inferiorly

#5 Mentalis

Origin: Mandible

Insertion: Skin of Chin

Action: Wrinkles chin

#6 Temporalis

Origin: Temporal Fossa

Insertion: Mandible

Action: closes jaw

#7 Orbicularis Oculi

Origin: Frontal Bone

Insertion: Tissue of Eyelid

Action: Closes Eyes

#8 Zygomaticus Minor

Origin: Zygomatic Bone

Insertion: Skin of Mouth

Action: Raise lips/ smile

#9 Zygomaticus Major

Origin: Zygomatic Bone

Insertion: Skin of Mouth

Action: Raise lips/ smile

#10 Buccinator

Origin: Mandible

Insertion: Orbicularis Oris

Action: Whistling

#11 Masseter

Origin: Zygomatic Bone

Insertion: Mandible

Action: Jaw Closure

#12 Depressor Anguli Oris

Origin: Mandible

Insertion: Skin of Mouth

Action: Corners mouth downward

#1 Sternohyoid

Origin: Manubrium

Insertion: hyoid bone

Action: Depresses Hyoid

#2 Sternothyroid

Origin: Manubrium

Insertion: Thyroid Cartilage

Action: Depresses Hyoid

#3 Sternocleidomastoid (sternal part)

Origin: Manubrium

Insertion: Temporal Bone (Mastoid Process)

Action: Neck Flexion forward

#4 Sternocleidomastoid (Clavicular part)

Origin: Manubrium

Insertion: Temporal Bone (Mastoid Process)

Action: Neck Flexion forward

#5 Omohyoid (superior belly)

Origin: Scapula

Insertion: hyoid bone

Action: Depresses Hyoid

#6 Sternohyoid

Origin: Manubrium

Insertion: hyoid bone

Action: Depresses Hyoid

#7 Omohyoid (superior belly)

Origin: Scapula

Insertion: hyoid bone

Action: Depresses Hyoid

#8 Trapezius

Origin: Occipital Bone

Insertion: Scapula

Action: Extend Head

#1 Omohyoid (superior belly)

Origin: Scapula

Insertion: hyoid bone

Action: Depresses Hyoid

#2 Scalenes (anterior)

Origin: Cervical Tranverse Processes

Insertion: ribs 1‐2

Action: Flex/ rotate neck

#3 Scalenes (middle)

Origin: Cervical Tranverse Processes

Insertion: ribs 1‐2

Action: Flex/ rotate neck

#4 levator Scapulae

Origin: C1‐C4 Tranverse Processes

Insertion: Scapula

Action: Laterally flexes neck

#5 Omohyoid (Inferior belly)

Origin: Scapula

Insertion: hyoid bone

Action: Depresses Hyoid

#6 Sternothyroid

Origin: Manubrium

Insertion: Thyroid Cartilage

Action: Depresses Hyoid

#7 Sternohyoid

Origin: Manubrium

Insertion: hyoid bone

Action: Depresses Hyoid