ANAT2020 midterm OP - O's & I's

platysma origin

inferior border of mandible, skin, and subcutaneous tissue of lower face

platysma insertion

fascia covering superior parts of pectoralis major and deltoids

sternocleidomastoid origin

lateral surface of mastoid process, lateral half of superior nuchal line

sternocleidomastoid insertion

sternal head: anterior surface of manubrium

clavicular head: superior surface of medial third of clavicle

longus colli origin

anterior tubercle of C1, bodies of C1-C3, TVPs of C3-C6

longus colli insertion

TVPs C3-C5 and bodies of C5-T3

longus capitis origin

basilar part of occipital bone

longus capitis insertion

anterior tubercles of TVPs of C3-C6

anterior scalene origin

TVPs of C3-C6

anterior scalene insertion

1st rib

middle scalene origin

posterior tubercles of TVPs C2-C7

middle scalene insertion

superior surface of 1st rib, posterior to subclavian groove

upper trapezius origin

medial third of superior nuchal line, inion, nuchal ligament, SPs C7/T1

upper trapezius insertion

lateral third of clavicle, spine of scapula, acromion

levator scapula origin

posterior tubercles of TVPs C1-C4

levator scapula insertion

medial border of scapula superior to root of scapular spine

posterior scalene origin

posterior tubercles of TVPs C4-C6

posterior scalenes insertion

external border of 2nd rib

splenius capitis origin

SPs C3-T3

splenius capitis insertion

mastoid process, lateral third of superior nuchal line

splenius cervicis origin

SPs T3-T6

splenius cervicis insertion

tubercles of TVPs C1-C3/4

rectus capitis posterior major origin

SPs C2

rectus capitis posterior major insertion

lateral part of inferior nuchal line

rectus capitis posterior minor origin

posterior tubercles of posterior arch of C1

rectus capitis posterior minor insertion

medial part of inferior nuchal line

obliquus capitis superior origin

TVPs C1

obliquus capitis superior insertion

occipital bone between superior and inferior nuchal lines

obliquus capitis inferior origin

SPs C2

obliquus capitis inferior insertion

TVPs C1

digastric origin

anterior belly: digastric fossa of mandible

posterior belly: mastoid notch of temporal bone

digastric insertion

intermediate tendon to body and greater horn of hyoid

stylohyoid origin

styloid process of mandible

stylohyoid insertion

body of hyoid

mylohyoid origin

mylohyoid line of mandible

mylohyoid insertion

mylohyoid raphe and body of hyoid

geniohyoid origin

inferior mental spine of mandible

geniohyoid insertion

body of hyoid

omohyoid origin

superior border of scapula near suprascapular notch

omohyoid insertion

inferior border of hyoid

sternohyoid origin

manubrium, medial end of clavicle

sternohyoid insertion

body of hyoid

sternothyroid origin

posterior surface of manubrium

sternothyroid insertion

oblique line of thyroid cartilage

thyrohyoid origin

oblique line of thyroid cartilage

thyrohyoid insertion

inferior border of body and greater horn of hyoid

temporalis origin

triangular m.m with broad attachment to floor of temporal fossa and deep surface of temporal fascia

temporalis insertion

narrow attachment to tip and medial surface of coronoid process and anterior border of ramus

masseter origin

quadrate muscle attaching to inferior border and medial surface of maxillary process of zygomatic bone & arch

masseter insertion

angle and lateral surface of ramus

lateral pterygoid origin

triangular two-headed muscle from infratemporal surface and crest of greater wing of sphenoid and lateral surface of lateral pterygoid plate

lateral pterygoid insertion

superior head: joint capsule and articular disc of TMJ

inferior head: pterygoid fovea on anteromedial aspect of neck of condyloid process of mandible

occipitofrontalis frontal belly origin

epicranial aponeurosis

occipitofrontalis frontal belly insertion

skin and subcutaneous tissue of eyebrows and forehead

occipitofrontalis occipital belly origin

lateral two thirds of superior nuchal line

occipitofrontalis occipital belly insertion

epicranial aponeurosis

corrugator supercilii origiin

medial end of superciliary arch

corrugator supercilii insertion

skin superior to middle of supraorbital margin and superciliary arch

orbicularis oris origin

medial maxilla and mandible, deep surface of peri-oral skin, modiolus

orbicularis oris insertion

mucous membrane of lips

mentalis origin

body of mandible, anterior to roots of inferior incisors

mentalis insertion

mentolabial sulcus (skin of chin)

buccinator origin

mandible, alveolar process of maxilla, alveolar part of mandible, pterygomandibular raphe

buccinator insertion

modiolus, orbicularis oris