unit 4 test Flashcards
olbiqus capitis inferior
A: ipsilateral rotation
O: lateral surface of spinous process of c2
I: inferior surface of transverse process of c1
N: suboccipital nerve
obliqus capitis superior
A: bilateral extension of the head on c1
O: transverse process of c1
I: occipital bone
N: suboccipital nerve
rectus capitis anterior
a: flex head
o: base of skull
I: anterior surface of lateral portion of c1
N: c1-c2
Rectus capitis lateralis
A: flex the head
O: jugular process of the occiput
I: transverse process of c1
N: c1-c2
rectus capitis posterior major
a: bilateral extension of head on atals unilateral ipsilateral rotation O: posterior edge of spinous process of axis I: inferior nuchal line N: suboccipital nerve
rectus capitis posterior minor
a: bilateral exteniosn of the head on atalas
o: posterior tubercle of c2
I: inferior nuchal line
N: suboccipital nerve
inferior rectus
A: downward rotation of the eye
O: from a tendinous ring on the posterior aspect of the orbit
I: middle of the inferior aspect on the anterior globe
N: oculomotor
superior rectus
a: upward rotation of the eye
o: from a tendinous ring on the posterior aspect of orbit
I: middle of superior aspect of the anterior globe
N: oculomotor nerve
lateral rectus
a: lateral rotation of the eye
O: tendionous ring on the posterior aspect of orbit
I:middle of lateral aspect of anterior globe
N: abducens nerve
medial rectus
a: medial rotation of the eye
O: a tendinous ring on the posterior aspect of orbit
I: middle of medial aspect of the anterior globe
N: oculomotor nerve
inferior oblique
a: look up and in
O: periosteum of the maxilla
i: inferolateral quadrant of the globe
n: oculomotor nerve
superior oblique
a: out and down
o: greater wing of the sphenoid
I: superolateral quadrant of the gloe
N: trochlear nerve
buccinator
a: depresses the cheeks
O: alveolar processes of the maxilla and mandible
I: angle of the mouth
N: facial nerve
corrugator supercilii
a: draws the eyebrows medially and inferiorly
O: located beneath the medial portion of the eyebrows
I: angle of the eye region: medially
N: facial nerve
depressor anguli oris
a: draws the angles of the mouth downward frowning
o: oblique line of the mandible
i: angle of the mouth
n: facial nerve
depressor labii inferioris
a: lowers the mouth
o: oblique line of the mandible
i: lower lip
n: facial nerve
digastric
a: hyoid bone fixed: depresses the mandible
mandible fixed: elevate the hyoid bone and retract the mandible
o: mastoid process
i: inferior surface of the mandible
n: trgieminal and facial nerve
gleniohyoid
a: opens mouth
o: medial ridge of the mandible
i: body of the hyoid bone
ansa cervicalis nerve
infrahyoids
a: depress the hyoid bone and thyroid cartilage
o: sternohyoid and sternothyroid top of manubrium
and thyrohyoid is thryoid cartilage and omohyoid is superior border of the scapula
i: hyoids on the hyoid bone and thyroid on the thyroid cartilage
c1 and c2
levator anguli oris
a: raises each side of the mouth
o: just superior to the canine teeth
I: angle of the mouth
n: facial nerve
levator labii superioris
a: elevate and prtorude the upper lip bilaterally
o: located medially to the levator anguli oris
i: angle of mouth
n: facial nerve
masseter
elevate the mandible
o: superficial portion: zygomatic process of maxilla
profundus portion; posterior 1/3 of the zygomatic arch
i: superficial protein
inferior half of the lateral ramus of mandible
profuncus
superior 1/2 pf the ra,is and cprpmpod [rpcess p tjemandible
mentalis
a: elevates the skin of the chin
o: incisive fossa of the mandible
i: points of the mandible
n: facial nerve
mylohyoid
a: opens moth
o: inferior border of the mandible
i: superior aspect of the hyoid bone
n: trigeminal nerve
orbicularis oculi
a: closing the eyelid
o: muscles surrounding the eye
I: skin surrounding the eyes
n: facial nerve
orbicularis oris
a: puckers the lips
o: originates off the muscles surrounding the mouth
I: skin surrounding the lips
n: facial nerve
occipitofrontalis
a: frontalis raise the eyebrows and wrinkel the forehead
occipitalis anchor and retrac the galea apomeurotica posterioly
origin: galea apneuotica
frontalis skin superior to the eyebrows
occipitalis superior nuchal line of the occiput
nerve: facial nerve
platysma
a: tense the fascia of the neck assist to depress the mandible
and draw down the corners of the mouth
o: fasical covering superior part of pectoralis major
I: base of mandible
n: facial nerve
procerus
a: wrinkles the nose
o: lower portion of the nasal bone
I: lower portion of the forehead between the eyebrows
n: facial nerve
pterygoid medial
a: bilaterally elevate and protract the mandible
o: medial surface of the lateral ptyerygoid plate of sphenoid and tuberosity of the maxilla
i: medial surface of the ramus of the mandible
n: trigeminal nerve
risorius
retracts the corners of the mouth laterally and forms an insincere looking smile
superficial to the buccinator
angle of the mouth
facial nerve
suprahyoids
a: elevate hyoid and tongue dpress the mandible
fleniohyoid and mylohydoi underside of mandible
stylohyoid process for the stylohyoid
hyoid bone
c1 and c2
temporalis
a: elevate the mandible aids in biting retract the mandible
o: temporal fossa and fascia
i: coronoid process and anterior edge of ramus of the mandible
n: trigeminal nerve
zygomaticus major
a: elevates and protracts the upper lip uses for smiling
o: zygomatic bone
I: angle of the mouth
n: facial nerve
glenioglossus
a: prtoracts the tonuge protracts the tongue o: mental spines of mandible i: inferior region of tongue and hyoid bone n: hypoglossal nerve
styloglossus
a: elevates and retracts the tongue
o: styloid process of temporal bone
sides and inferior aspect of tongue
