Origin and Insertion Pt. 1

origin of epicranius, frontal belly (frontalis)

epicranial aponeurosis

insertion of epicranius, frontal betty (frontalis)

skin and subcutaneous layer of eyebrows and forehead

origin of epicranius, occipital belly (occipitalis)

nuchal line of occipital bone

insertion of epicranius, occipital belly (occipitalis)

epicranial aponeurosis

origin of orbicularis oculi

medial wall of orbit

insertion of orbicularis oculi

skin around eyelids

origin of orbicularis oris

maxilla and mandible

insertion of orbicularis oris

encircling mouth

origin of zygomaticus major

zygomatic bone

insertion of zygomaticus major

skin at corners of mouth

origin of zygomaticus minor

zygomatic bone

insertion of zygomaticus minor

skin of upper lip

origin of platysma

fascia of deltoid and pectoralis major muscles; acromion of scapula

insertion of platysma

skin of cheek and chin

origin of temporalis

temporal lines (ridges on temporal bone)

insertion of temporalis

coronoid process of mandible

origin of masseter

zygomatic arch

insertion of masseter

ramus and angle of mandible

origin of sternocleidomastoid

manubrium of sternum; medial end of clavicle

insertion of sternocleidomastoid

mastoid process of occipital bone

origin of sternohyoid

manubrium of sternum; medial end of clavicle

insertion of sternohyoid

hyoid bone

origin of iliocostals group

posterior iliac crest; posterior sacrum; lumbar spinous processes

insertion of iliocostals group

ribs, transverse processes of cervical vertebrae

origin of longissimus group

posterior iliac crest; posterior sacrum; lumbar spinous processes

insertion of longissimus group

mastoid process of temporal bone, transverse process of cervical and thoracic vertebrae

origin of spinalis group

spinous processes of lumbar vertebrae; spinous processes of C7 vertebrae

insertion of spinalis group

spinous processes of axis and thoracic vertebrae

origin of diaphragm

inferior, internal surface of lower ribs; xiphoid process of sternum; lumbar vertebrae

insertion of diaphragm

central tendon of diaphragm

origin of external intercostal

inferior border of superior rib

insertion of external intercostal

superior border of inferior rib

origin of internal intercostal

superior border of inferior rib

insertion of internal intercostal

inferior border of superior rib