Midterm Quiz mm list Flashcards
What is the Buccinator?
Located at the centre of the cheek.
Action:
Unilaterally: Tightens the corners of the mouth.
Bilaterally: Help blow trumpet, Suck on straw.
What is Depressor Anguli Oris?
Located inferior and lateral to the corner of the mouth.
Action:
Unilaterally: Pulls corner of mouth inferiorly and laterally.
Bilaterally: Assist in frowning.
What is Depressor Labii Inferiorioris?
Located Inferior to corner of the mouth.
Action:
unilaterally: Pulls corner of lip inferiorly and shows bottom teeth.
Bilaterally: Pulls corner of mouth inferiorly and shows bottom teeth.
What is Levator Anguli Oris?
Located Superior to corner of the mouth.
Action:
Unilaterally: Raises corner of the mouth
Bilaterally: Assist with Smiling
What is Levator Labii Superion’s?
Located lateral to nostril just superior to upper lip.
Action:
Unilaterally: Raises corner of mouth
Bilaterally: Elevate and protrude upper lip
What is Mentalis?
Located lateral to the midline of the Chin.
Action: Protrude lower lip (crying)
What is Orbicularis Oris?
Located Around / Encircles the Lips.
Action: Puckering lips during Speech and kissing.
What is Platysma?
Located on the lateral sides of the Anterior neck (pecs to Mandible)
Action: Depress Jaw, Depress corners of the mouth and tightens the Anterior neck.
What is Risorius?
Located lateral to the corners of the mouth.
Action:
Unilaterally: Retracts corners of mouth
Bilaterally: Lateral smile
What is Zygomaticus Major?
Located from the corner of the mouth laterally ad superiorly (line from top of the ear)
Action:
Unilaterally: Superior ad lateral movement of corner of mouth.
Bilaterally: Sort of far smile.
What is Zygomaticus Minor?
Located medial to zygomaticus major corner of the Mouth laterally and superiorly.
Action: Puff top of cheek.
What is Levator Labii Superioris Alaeque Nasi?
Located lateral to the nose on cheek.
action:
Unilaterally: Elevates nostril
Bilaterally: churches nose
What is Nasalis?
Located on lateral part of the nose.
action: Transverse portion draws down tip of nose.
alar portion flares nostrils.
What is Procerus?
Located Between eyebrows on forehead.
Action: Wrinkle skin between brows.
What is Corrugator Supercili?
Located Medial eyebrows.
Action: Inferior and medial movement of eyebrows.
What is Orbicularis Oculi?
Encircles the eyes.
Action: Closing eyelids, squinting, blinking.
What is Occipitofrontalis?
Located on forehead & Base of Occipitals.
Action: Raise forehead, wrinkle.
What is Temporalis?
Origin: temporal fossa and Fascia of lateral scalp.
Insertion: Coronoid process of the mandible.
Action: elevates the mandible / retracts the mandible.
Nevre: Trigeminal nerve (CN V)
What is the lateral Pterygoid?
Origin:
Super head, Infratemporal surface and crest of greater wing of Sphenoid bone.
Inferior head, Lateral surface of lateral pterygoid plate of sphenoid bone.
Insertion: articular disc and capsule of TMJ and neck of mandible.
Action:
Unilaterally, Lateral deviation of mandible to opposite side.
Bilaterally, Protracts mandible.
Nerve: trigeminal nerve
What are the Suprahyoids?
The Suprahyoids include:
Mylohyoid, Geniohyoid, Styolohyoid, Digastric.
What are the Infrahyoids?
The Infrahyoids include:
Sternohyoid, Sternothyroid, Thyohyoid, Omohyoid, Platysma.
What is Splenius Capitis?
Origin: Inferior one half of ligamentum nuchae and SP’s of C-7 to T4.
Insertion: Mastoid process and lateral portion of superior nuchal line.
Action:
Unilaterally, Ipsilateral rotation and lertally flex head and neck.
Bilaterally, Extend the head and neck.
Nerve: Cervical.
What is the Internal Obliques?
Origin: Lateral inguinal ligament, iliac crest and thoracolumbar fascia.
Insertion: Internal surface of ribs 10 - 12, abdominal aponeurosis to Linea alba.
Action:
Unilaterally, Laterally flex and rotate the vertebral column to the same side.
Bilaterally, Flex the vertebral column, compress the abdominal contents.
Nerve: T7-12, L1.
What is the Transverse abdominis?
Origin: Lateral inguinal ligament, iliac crest and thoracolumbar fascia and internal surfaces of ribs 7-12.
Insertion: Abdominal aponeurosis to linea alba.
Action: Compress the abdominal contents.
Nerve: T7-12, L1.
What is the Medial Pterygoid?
Origin: Medial surface of lateral pterygoid plate of Sphenoid bone and tuberosity of maxilla.
Insertion: Medial surface of Mandibular Ramus.
Action:
Unilaterally, Lateral deviation of mandible to opposite side of mouth.
Bilaterally, Elevate & protract the mandible.
Nerve: Trigemanal nerve.
What is Splenius Cervicis?
Origin: SP’s of T3 - 6
Insertion: TVP’s pf C1 - 3
Action:
Unilaterally, Ipsilateral rotation & lateral flexion of the head and neck.
Bilaterally, Extension of the head and neck.
Nerve: Cervical.
What are the muscles of the Mouth?
Risoris, Zygomaticus Major, Zygomaticus Minor, Orbicularis Oris, Platysma, Levator Anguli Oris, Levator Labii Superioris, Mentalis, Bucinator, Depressor Anguli oris, Depressor Labii Inferioris.
What are the muscles of the Nasal region?
Levator Labii Superioris Alaeque Nasi, Nasalis, Procerus.
What are the muscles in the region of the eyes?
Corrugator Supercilii, Orbiularis Oculi.
What are the muscles of the Scalp?
Occipitofrontalis, Auriclaris(anterior Middle & posterior).
What is Buccinator used for in the face?
This muscle tightens the corners of the mouth, helps to suck on straws.
It can produce small dimples in the cheeks.
What is Depressor Anguli Oris used for in the face?
This muscle pulls the corners of the mouth inferiorly & laterally.
Used for signs of sadness.
With solid contraction it is a frown.
What is Depressor Labii Inferioris used for in the face?
This muscle is used for pulling the lower lip inferiorly and slightly laterally.
What is the Levator Aguli Oris used for the face?
This muscle is used for pulling the corner of the mouth superiorly.
Assist with smiling bilaterally.
What is the Levator Labii Superioris used for in the face?
This muscle is used for Elevating the upper lip.
What is the Mentalis muscle uses for in the face?
This is the chins most medial muscle and is used for elevating the skin of the lower lip and protruding the lower lip.
What is the Orbiularis Oris used for in the face?
This is a strong sphincter muscle around the mouth.
Used for making “O” shapes during speech and eating.
What is the Platysma used for in the face?
This is a thin superficial sheath of muscle spanning from the fascia of the superior chest to the base of the mandible.
Used for pulling the fascia of the neck inferiorly.
What is the Risorius muscle used for in the face?
This muscle is superficial to the Buccinator.
It is located Horizontally across the cheek.
Used for retracting the corner of the mouth.
What is the Zygomatic Major used for in the face?
This muscle draws the corners of the mouth upward and laterally with bilateral contraction.
Associated with happiness.
What is the Zygomatic minor used for in the face?
This muscle is located medial to the Zygomaticus major.
Used for elevating and protruding the upper lip.
What is the Levator Labii Superioris used for in the face?
This muscle is a strip along the side of the Nose that elevates the nasal cavity.
It also elevates and protrudes the upper lip.
What is the Nasalis used for in the face?
Consisting of 2 parts:
Transvers and an Alar portion.
It is located on the nose.
Used for nostril expansion.
What is the Procerus used for in the face?
Located in the medial forehead and is triangular.
Helps elevate the nose when sneezing and associated with the eyebrows.
What is the Corruator Supercilii used for in the face?
This muscle is located beneath the medial portion of the eyebrows.
Used for creating a frowning of the Eyebrows bilaterally.
What is the Orbicularis Oculi used for in the face?
Located on and around the eye it is used for closing the eye.
What is the Occipitofrontalis used for in the face and head?
Elevating the Forehead.
What is the Auricalaris muscles used for in the head?
Pulling the Ears.
