Axial Skeleton Muscles Action,occi Origin, and Insertion: UMW Anatomy

occipitofrontalis

origin epicreanial aponeurosis, superior nuchal line and the temporal bone. Insertion temporal skin of eyebrows and bridge of nose, epicranial aponeurosis. action raises eyebrows, wrinkles forehead, tenses and retracts scalp

temporoparietalis

origin fascia around external ear. insertion epicranial aponeurosis. action tenses scalp, moves auricles of ear

Posterior Anterior and Superior Auricularis

origin lateral edge of the galea aponeurotica. insertion projection on the front of the helix. action

Orbicularis Oculi

origin the lacrimal bone. insertion superior and inferior tarsi medial. action closes the eyelids

Depressor Supercilii

origin the maxilla, fascia on the nasal bone. insertion dermis and skin of the eyebrow. action depresses the eyebrow

Corrugator Supercilii

origin the superciliary arch. insertion deep surface of the skin. action pulls the eyebrows medially and inferiorly

Procerus

origin nasal cartilages and the nasal bones. insertion bridge of nose and skin of forehead. action moves nose, changes position, shape of nostrils, draws medial angle of eyebrows inferiorly

Depressor Septor Nasi

origin maxilla and obicular oris. insertion nasal septum. action divides the two nostrils

Nasalis

origin maxilla and alar cartilage of nose. insertion bridge of nose. action compresses bridge of nose, depresses tip, elevates corners of nostrils

Levator Labii Superioriis

origin maxilla and zygomatic. insertion obicular oris. action elevates and everts upper lip

Zygomatic major

origin zygomatic bone. insertion levator anguli oris, orbicularis oris. action elevates corner of the mouth and draws it laterally.

Zygomatic Minor

origin zygomatic process. insertion upper lip. action elevates upper lip

Levator Anguli Oris

origin maxilla and zygomatic. insertion orbicularis oris. action elevates and raises corner of mouth

Risorius

origin fascia over the parotid gland. insertion angle of the mouth. action draws corners of the mouth laterally

Levator Nasolabialis

origin frontal process of the maxilla. insertion cartilage of the nose and skin of the nostril, the upper lip. action elevates the upper lip and wing of the nose, flares the nostrils, deepens the nasal labial fold

Buccinator

origin maxilla and mandible. insertion blends into orbicularis oris. action anterior part of cheek and lateral wall of oral cavity

Depressor Anguli oris

origin mandible. insertion angle of mouth. action frowning

Orbicularis Oris

origin maxilla and mandible. insertion lips. action closes the mouth and puckers the lips

Depressor Labii Inferioris

origin mandible. insertion skin of lower lip. action lowers the bottom lip

Mentalis

origin fossa of mandible. insertion skin of chin. action raises the central portion of lips

Superficial Masseter

origin the zygomatic arch, the zygomatic bone. insertion angle of the mandible and the madibular ramus. action mastication

Deep masseter

origin zygomatic arch. insertion mandibular ramus. action elevate the mandible

temporalis

origin temporal line of skull. insertion mandible and the mandibular ramus. action elevates mandible and closes jaws, assists in retracting and moving mandible from side to side

pterygoid medial

origin the lateral pterygoid plate, palatine bone, and maxilla. insertion mandibular ramus. action elevates the mandible and closes the jaws or moves mandible side to side.

pterygoid lateral

origin the lateral pterygoid plate and the sphenoid. insertion the mandibular condyle. action opens jaws, protrudes mandible, moves mandible side to side.

lateral rectus

origin annuls of zinn. insertion lateral sclera. eye moves laterally

medial rectus

origin annuls of zinn. insertion medial sclera. action eye looks medially

superior rectus

origin annuls of zinn. insertion superior sclera. action eye looks up

inferior rectus

origin annuls of zinn. insertion inferior medial surface of eyeball. action eye looks down

superior oblique

origin sphemoid around optic canal. insertion superior, lateral surface of eye. action eyerolls, looks up and lateral

inferior oblique

origin maxillary bone. insertion posterior, inferior, and lateral surface of the eye. action eye rolls, looks up and laterally

annulus of zinn

origin superior, inferior, and medial margins of the optic canal, insertion superior, inferior, medial, and lateral rectus. provides ridig froamework fro the rectus muscle to pull on.

intrinsic lingual muscle

origin submucosal fibrous layer near the epiglottis. insertion tip of the tongue. action shortens the tongue, curls the tip and lateral edges upward.

genioglossus

origin mandible around chin. insertion body of tongue, hyoid bone. action depresses and protracts tongue

palatoglossus

origin anterior surface of temporal bone. insertion side of tongue. action. retracts tongue, elevates sides

styloglossus

origin styloid process of the temporal bone. insertion tongue. action retract tongue, elevates sides.

hyoglossus

origin body and greater horn of hyoid bone. insertion side of tounge. action depresses and retacts tounge

pharengeal constrictor

origin pterygoid hamulus, the pterygomandibular raphe of the buccopharyngeal fascia, the posterior end of the mylohyoid ridge of the mandible, and the tongue. insertion pharyngeal tubercle on the basilar part of the occipital bone and the medial pharyngeal. action narrows the lumen of the upper pharynx.

palatopharyngeal

origin soft and hard palate. insertion thyroid cartalage. action elevate larynx

stylopharengeal

origin styloid process of temporal bone. insertion thyroid cartilage. action elevate larynx

anterior diagastrac

origin mandible at chin. insertion hyoid bone. action depresses mandible opening mouth, elevates larynx

posterior diagastric

origin temporal bone. insertion hyoid bone. action depresses mandible, opening mourt, eleavtes larynx

mylohyoid

origin mandible. insertion the hyoid bone. action elevates floor of mouth, elevated hyoid bone, and or depresses mandible

geniohyoid

origin mandible at chin. insertion hyoid bone. actin depresses mandible opening moth and or eleavtes alrynx and retact hyoid bone.

stylohyoid

origin the temporal bone. insertion hyoid bone. action elevates larynx

omohyoid

origin: the scapula. insertion hyoid bone. depresses hyoid bone and larynx.

thyrohyoid

origin thyroid cartilage of larynx. insertion hyoid bone. action elevates larynx, depresses hyoid bone

sternothyroid

origin the manubrium and first costal cartilage. insertion thyroid cartilage of larynx. action depresses hyoid bone and larynx.

sternohyoid

origin clavicle and manubium. insertion hyoid bone. action depress hyoid bone and larynx

sternocleidomastoid

origin the clavicle and the manubrium. insertion mastoid region and the superior nuchal line. action together they flex the neck , alone one side bends neck towards shoulder and turns to face opposite side

Platysma

origin fascia of the pectoralis major and deltoid. insertion bone below the oblique line. action frowing depressing the mandible and side of mouth

Rectus capitus

origin spinous process of the atlas. insertion lateral portion of the occipital bone. action extends the head and rotates the head to the same side

Obliquus Capitis

origin the transverse process of the altas. insertion occipital bone. action extends the head and laterally flexes the head to the same side.

rectus capitis

origin transverse process of the atlas. insertion the occipital bone. action flexes the head and neck at the atlantal-occipital joint

rectus cervicis

origin C3-C5, C5-T3, T1-T3. Insertion C1, C2-C4, C5, C6. action flexes the cervical spine and neck forward, flexion and rotation of the neck on the same side, stabilizes the cervical column and maintains spine curvature

longus capitis

origin the third to sixth cervical vertebrae. insertion inferior surface of the occipital bone. action flexes the head and neck when acting bilaterally, and rotates the head and neck to the same side when acting unilaterally

longus cervicis

origin spinous process of T3-6. insertion c1-c3. action flexes the head and neck to the same lateral side, extends the head and neck

anterior middle and posterior scalene

origin c2-c7. insertion superior border of the first rib. action flexes the neck to the same side, rotates the neck to the opposite side

splenius capitis

origin the inferior cervical vertebrae and the superior thoracic vertebrae. insertion mastoid process, occipital bone of skull, superior cervical vertebrae. action flexes the neck and rotates it to the ipsilateral side, extends the head and neck

splenius cervicis colli

origin t3-6. insertion c1-3. action the two sides act together to extend the neck either alone rotates and laterally flexes neck to the side

spinalis cervicis

origin ligamentum nuchae and spinous processes of c7. insertion spinous process of c3-4. action extend neck

spinalis thoracis

origin t11 and 12, and L1 and 2. insertion superior thoracic vertebrae. action extends vertebral column

longissimus capitis

origin inferior cervical vertebrae. insertion temporal bone. action the two sides act together to extends neck, either alone rotates and laterally flexes the neck to that side.

longissimus cervicis

origin transverse process of superior thorasic vertebrae. insertion transverse process of middle and superior cervical vertebrae. action the two sides act together to extend the neck, either alone rotates and laterally flexes the neck to that side

longissimus thoracis

origin inferior thoracic and superior lumbar vertebrae, joins iliocostalis. insertion superior thoracic and lumbar vertebrae and lower 10 ribs. action extension of vertebral column, alne each side produces lateral flexion to that side.

iliocostalis cervicis

superior borders of the vertebrosternal ribs. insertion c4-6. action extends or laterally flexes neck, elevates ribs

iliocostalis thorasic

origin rbs 6-12. insertion superior ribs and c7. action stabilizes thoracic vertebrae in extension

iliocostalis lumborum

origin iliac crest, sacral crest, and lumbar spinous processes. insertion inferior surfaces of ribs 6-12. action extends vertebral coulumn, depresses ribs

semispinalis capitas

origin process of lower 4 cerival and superior 6 or 7 thorasic vertebrae. insertion occipital bone. action together the two sides extend the neck, alone each extends and laterally flexes neck and turns head to opposite side

semispinalas cervicis

origin T1-5 or 6. insertion c2-5. action extends vertebral column and rotates toward opposite side

semispinalis thoracis

origin T6-10. insertion C6-7 and T1-4. action extends vertebral column and rotates toward opposite side

Multifidus

origin sacrum, posterior superior iliac spine, lumbar vertebrae, thoracic vertebrae, cervical vertebrae. insertion spinous process of all vertebrae except the atlas. action extens, rotates, and stablizes the spinal column

rotatores Longus

origin thorcic vertebrae. insertion lamina and spinous process of the vertebrae 2 above the origin. Action extends and contralaterally rotates the thoracic spine, posture

rotatores brevis

origin T2-12 insertion lamina and spinous process of the vertebrae one vertebrae above the insertion. Action extends and rotates contralaterally the thoracic spine,

interspinalis

origin C3-T2, T11-12, and L2-5. insertion C3-T1, T10-11 and L1-4. Action vertebral column stability and spinal extension

intertransversarii cervicis anterior and posteror

origin C2-T1. insertion C1-C7. Action spinal stability, lateral flexion of the cervical spine

intertransversarii thoracis

origin transverse process of each thoracic vertebrae. insertion transverse process of the more superior vertebrae. action lateral flexion of the vertebral column

intertransversarii lumborium lateralis and medialis

origin L2-L5. insertion L1-L4. action spinal stablity and lateral flexion of the lumbar spine

levatores costarim longi and brevis

origin C7 and T1-T11. insertion superior border of the rib immediately inferior of the vertebrae of origin. action elevating ribs, lateral flexion and rotatio of the thorasic vertebrae

external intercostal

origin inferior surface of each rib. insertion superior border of the more inferior rib. action elevates ribs

internal intercostal

origin superior surface of each rib. insertion, inferior border of the more superior rib. Action depresses ribs

innermost intercostal

Origin: Posterior sternum. Insertion: cartilage of the ribs. Action depresses ribs

subcostalis

Origin: Internal surface of ribs 7-10. Insertion: Internal surfaces of Ribs 9-12. Action: depresses the ribs

transversus thoracis

Origin: Posterior surface of the sternum. Insertion: Cartilage of the ribs. Action: depresses the ribs

serratus posterior superior

Origin: Ligament nuchae, spinous process of C7-CT3 and the supraspinous ligaments. Insertion” superior borders of ribs 2-5. Action: Elevates the ribs

serratus posterior inferior

Origin: T11-T12 and L1-L2. Insertion: inferior borders of ribs 9-12. Action: depresses the ribs and draws them interposteriorly

diaphragm

Origin: xiphoid process of sternum, ribs 7-12 and costal cartilage, anterior surface of lumbar vertebrae. Insertion: Central tendon sheet. Action: contraction, expands the thorasic cavity, compresses abdominopelvic cavity

external oblique

Origin: thoracolumbar fascia, inguinal ligament, and iliac crest. Insertion: Linea alba and iliac crest. Action: compresses abdomen, depresses ribs, laterally rotates vertebral column to the opposite side

internal oblique

Origin: lateral inguinal ligament, iliac crest thoracolumbar fascia. Insrtion: lower 3 ribs, linea alba, pubic crest. Action: compresses abdomen, depresses ribs, laterally rotates vertebral column to the same side

rectus abdominus

origin: superior surface of the pubis around the symphisis. Insertion: ribis 5-7 cartilage, sternum. Action: depress ribs, flex vertebral column, compress abdomen

transverse abdominus

Origin: Inguenal ligament, iliac crest, facia of the lower 6 ribs. Insertion:linea alba, obliques, xiphoid process, and the pubic crest. Action: compresses the abdomen

ischiococcugeus

Origin: Ischeal spine, Insertion: Lateral inferior borders of the sacurm and coccyx. Action: Elevate and support pelvic floor

illiococcugeus

Origin: ilium. Insertion: Coccyx. Action: Hold the organs up inside the pelvis

pubococcygeus

Origin: inner margins of pubis. Insertion: Coccyx. Action: Support the pelvic floor and its organs

puboanalis

Origin: Pubic body posterior surface. Insertion: Behind the rectoanal junction. Action: Fecal continence, defication

perineal

Origin: Ischeal tuberosity and the ischeal ramus. Insertion: Perineal body. Action: stablizes the peroneal body