Muscle Insertions and Origins Flashcards
longissimus - origin
transverse process at inferior vertebral levels
longissimus - insertion
transverse process at superior vertebral levels and mastoid process
anterior scalene - origin
anterior tubercles of the transverse processes of vertebrae C3-C6
anterior scalene - insertion
scalene tubercle of the first rib
auricularis superior - origin
galea aponurotica superior to the ear
auricularis superior - insertion
auricle
buccinator - origin (3)
- pterygomandibular raphe
- mandible
- maxilla lateral to the molar teeth
buccinator - insertion (3)
angle of mouth and lateral portion of the upper and lower lips
depressor anguli oris - origin
oblique line of the mandible
depressor anguli oris - insertion
angle of the mouth
depressor labii inferioris - origin
anterior surface of the mandible
depressor labii inferioris - insertion
skin of the lower lip
digastric anterior belly - origin
digastric fossa of the mandible
digastric posterior belly - origin
mastoid notch of the temporal bone
digastric anterior/posterior - insertion
body of the hyoid via a fibrous loop over an intermediate tendon
epicranius frontalis - origin
galea aponeurotica
epicranius frontalis - insertion
skin of the eyebrow
epicranius occipitalis - origin
superior nuchal line
epicranius occipitalis - insertion
galea aponeurotica
lateral pterygoid - origin (2)
- greater wing of the sphenoid bone
- lateral surface of the lateral pterygoid plate
levator scapulae - origin (2)
transverse processes of C1-C4
levator scapulae - insertion
medial border of the scapula from the superior angle of the spine
masseter - origin (2)
zygomatic arch and zygomatic bone
masseter - insertion
lateral surface of the ramus and angle of the mandible
medial pterygoid - origin
medial surface of the lateral pterygoid plate
medial pterygoid - insertion
medial surface of the ramus and angle of the mandible
mentalis - origin
anterior surface of the mandible near the mental symphysis
mentalis - insertion
skin of the chin
middle scalene - origin
posterior tubercles of the transverse processes of C2-C7
middle scalene - insertion
upper surface of the first rib
mylohyoid - origin
mylohyoid line of the mandible
mylohyoid - insertion
midline raphe and body of the hyoid bone
omohyoid - origin (2)
- upper border of the scapula
- intermediate tendon
omohyoid - insertion (2)
- intermediate tendon
- lower border of the hyoid bone
orbicularis oculi - origin (2)
- medial orbital margin
- medial palpebral ligament
orbicularis oculi - insertion (2)
- skin of the lateral cheek
- lateral palpebral raphe
orbicularis oris - origin
skin and fascia of the lips and area around them
orbicularis oris - insertion
skin and fascia of the lips
platysma - origin
fascia overlying the pectoralis major and deltoid
platysma - insertion (2)
inferior border of the mandible and skin of the lower face
posterior scalene - origin
posterior tubercles of the transverse processes of C5-C7 vertebrae
posterior scalene - insertion
lateral surface of the second rib
risorius - origin
fascia of the lateral cheek
risorius - insertion
skin of the corner of the mouth
sternocleidomastoid - origin (2)
- anterior surface of the manubrium
- medial 1/3rd of the clavicle
sternocleidomastoid - insertion (2)
- mastoid process
- lateral half of the superior nuchal line
sternohyoid - origin
posterior surfaces of the manubrium and sternal end of the clavicle
sternohyoid - insertion
lower border of the hyoid bone
sternothyroid - origin
posterior surface of the manubrium
sternothyroid - insertion
oblique line of the thyroid cartilage
stylohyoid - origin
posterior side of the styloid process
stylohyoid - insertion
body of the hyoid bone
temporalis - origin (2)
temporal fossa and temporal fascia
temporalis - insertion (2)
- coronoid process of the mandible
- anterior surface of the ramus of the mandible
thyrohyoid - origin
oblique line of the thyroid cartilage
thyrohyoid - insertion
lower border of the hyoid
zygomaticus major - origin
upper lateral surface of the zygomatic bone
zygomaticus major - insertion
skin of the angle of the mouth
zygomaticus minor - origin
lower surface of the zygomatic bone
zygomaticus minor - insertion
lateral part of the upper lip
iliocostalis - origin
iliac crest and sacrum
iliocostalis - insertion
angles of the ribs
semispinalis capitis - origin
transverse processes of C7-T12
semispinalis capitis - insertion
back of the skull between nuchal lines
spinalis - origin
spinous processes at inferior vertebral levels
spinalis - insertion
spinous processes at superior vertebral levels and base of the skull
splenius capitis - origin
ligamentum nuchae at spines C7-T6
splenius capitis - insertion
mastoid process and superior nuchal line
external intercostal - origin
lower border of a rib within an intercostal space
external intercostals - insertion
upper border of the rib below
internal intercostal - origin
upper border of a rib
internal intercostal - insertion
lower border of the rib above
external oblique - origin
lower 8 ribs
external oblique - insertion (4)
- linea alba
- public crest and tubercle
- superior iliac spine
- anterior half of iliac crest