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Occipitalis Insertion
galea aponeurotica
Occipitalis Action
Retracts scalp
Frontalis Insertion
Eyebrow Skin
Frontalis Action
Elevates eyebrows
Occipitalis Origin
Occipital Bone
Orbicularis Oculi Origin
Frontal bone
Orbicularis Oculi Insertion
Eyelid Tissue
Orbicularis Oculi Action
blinking
Levator Labii Superioris Origin
zygomatic bone
Levator Labii Superioris insertion
upper lip
Levator Labii Superioris action
opens lips
Levator Anguli Oris Action
elevates mouth angle
Orbicularis Oris Origin
maxilla
Orbicularis Oris Insertion
mouth angles
Orbicularis Oris Action
closes mouth
Zygomaticus Major and minor Origin
zygomatic bone
Zygomaticus Major and minor Insertion
mouth corner
Zygomaticus Major and minor action
smiling
Risorius Origin
Masseter fascia
Risorius insertion
mouth corners
Risorius Action
smiling
Depressor Labii Inferioris Origin
mandible body
Depressor Labii Inferioris Insertion
lower lip
Depressor Labii Inferioris Action
depresses lip
Depressor Anguli Oris Origin
mandible body
Depressor Anguli Oris Insertion
mouth corners
Depressor Anguli Oris action
frowning
Mentalis Origin
Mandible
Mentalis insertion
chin skin
Mentalis action
wrinkles chin
Platysma origin
chest fascia
Platysma insertion
mandible
Platysma action
depresses mandible
Masseter Origin
zygomatic arch
masseter insertion
ramus of mandible
Masseter action
closes jaw
Temporalis Origin
Temporal fossa
Temporalis insertion
mandible coronoid process
Temporalis action
closes jaw
Buccinator Origin
mandible
Buccinator Insertion
Orbicularis oris
Buccinator Action
draws mouth corners
Medial Pterygoid origin
sphenoid
Medial pterygoid insertion
mandible angle
Medial and lateral pterygoid action
chewing
Lateral Pterygoid origin
sphenoid greater wing
Lateral pterygoid insertion
mandibular condyle
galea aponeurotica action
tendon
Suprahyoid Muscles
digastric, stylohyoid, mylohyoid
Infrahyoid Muscles
Sternohyoid, sternothyroid, omohyoid, thyrohyoid
Digastric origin
mandible
Suprahyoid insertion and action
hyoid, elevates hyoid
Stylohyoid origin
styloid process
Mylohyoid origin
mandible
Infrahyoid action
depresses hyoid
Sternyohyoid origin
manubrium
Sternohyoid insertion
hyoid
Sternothyroid origin
manubrium
Sternothyroid insertion
larynx (thyroid cartilage)
Omohyoid origin
Scapula (superior border)
Omohyoid and thyrohyoid insertion
hyoid
Thyrohyoid origin
larynx (thyroid cartilage)
Posterior Neck Muscles
sternocleidomastoid, splenius capitis, levator scapulae, scalenes, semispinalis capitis
Sternocleidomastoid origin
manubrium
Sternocleidomastoid insertion
mastoid process
Sternocleidomastoid and Scalenes action
flexes neck
Scalenes origin
cervical vertebrea transverse process
Scalenes insertion
ribs 1-2
Levator Scapulae origin
C1-C4 transverse process
Levator Scapulae Insertion
Scapula medial border
Levator Scapulae action
elevates scapula
Splenius capitis origin
spinous processes of C7-T6
Splenius capitis insertion
mastoid process
Splenius capitis and Semispinalis Capitis action
Extends head
Semispinalis Capitis Origin
C7- T 12 transverse process
Semispinalis Capitis Insertion
occipital bone
Pectoralis Major Origin
clavicle
Pectoralis Major insertion
humerus (intertubercular sulcus)
Pectoralis Major Action
elevates chest
Pectoralis minor origin
Ribs 3-5
Pectoralis minor insertion
scapula coracoid process
Pectoralis minor action
elevates ribs
Deltoid origin
clavicle
Deltoid insertion
Humerus deltoid tuberosity
Deltoid action
extends humerus
Serratus Anterior Origin
Ribs 1-8
Serratus Anterior insertion
scapula
Serratus Anterior action
elevates humerus
External Intercostals origin
inferior border of rib above
External Intercostals insertion
superior border of rib below
Internal intercostals origin
superior border of rib below
internal intercostals insertion
inferior border of rib above
External and internal intercostals actions
external: elevates rib cage
internal: depressed rib cage
Diaphragm origin
lumbar vertabrae
Diaphragm insertion
central tendon
Diaphragm action
Inspiration prime mover
Contracts during inspiration
Expands during expiration
Trapezius origin
occipital bone
Trapezius insertion
scapule
Trapezius action
shrugging
Latissimus Dorsi origin
iliac crest