|Name the Muscles of Mastication ||1.Temporalis
O: Zygomatic arch.
I: mandible- lateral surface of angle, ramus.
N: Trigeminal, V. ||Masseter|
|A: Elevates/closes mandible, works with another muscle.
O: medial surface of lateral pterygoid plate of sphenoid.
I: medial surface of angle of madible.
N: Trigeminal, V. ||Medial (internal) Pterygoid|
|A: Depressor/opener of mandible; protrudes mandible; permits side-to-side movement of mandible.
O: Great wing of sphenoid and lateral surface of lateral pterygoid plate.
I: Neck of condyle process of mandible and TMJ.
N: Trigeminal, V ||Lateral (external) Pterygoid|
|A:Elevates/closes mandible and retracts mandible.
O: Temporal fossa.
I: coronoid process of mandible.
N: Trigeminal, V.
Can feel bulge when clench jaw. Cause of some headaches. ||Temporalis|
|Muscle(s) that elevates or close the mandible ||Temporalis, Masseter, Medial (internal) pterygoid.|
|Muscle(s) that retracts mandible ||Temporalis|
|Muscle(s) that depresses or open mandible ||Lateral (external) pterygoid
(also anterior belly of digasrtric, mylohyoid, geniohyoid)|
|Muscle(s) that protrudes mandible ||Lateral pterygoid|
|muscle(s) that permits side-to-side movement of mandible ||Lateral pterygoid|
|Name the Outer circular (horizontal) muscles of the pharynx. ||- Superior constrictor
- Medial constrictor
- inferior constrictor|
|Name the inner longitudinal (vertical) muscles of the pharynx. ||- Salpingopharyngeous
|Muscle that forms the nasopharynx and oropharynx. Aides in swallowing by propelling the bolus and helps close the VP port. ||Superior Pharyngeal Constrictor|
|Muscle that is partially made up of the cricopharyngeous. ||Inferior Pharyngeal Constrictor|
|Muscles that work together for rotary chewing. ||Medial and lateral pterygoids|
|Which nerve innervates the muscles of mastication? ||CN V- Trigeminal|
|Name the cranial nerves important for innervating the muscles of swallowing. ||CN V- Trigeminal
CN VII- Facial
CN IX- Glossopharyngeal
CN x- Vagus
CN XII- Hypoglossal|
|Which group of muscles contribute to structure and elevate the larynx during swallow? ||Suprahyoid Muscles:
Mylohyoid, Digastric, Geniohyoid, stylohyoid, |
|Which muscle is fan-shaped and known for making the floor of the mouth (FOM)? ||Mylohyoid (while geniohyoid is the "table runner")|
|Which muscles are responsible for big movements of the tongue? ||Extrinsic lingual muscles: Genioglossus, Hyoglossus, Styloglossus, Palatoglossus|
|Which muscle has 2 bellies and a bend in it? One belly pulls hyoid up and forward before swallowing, while the other belly pulls hyoid back after swallowing. ||Digastric|
|Which extrinsic lingual muscle is also known as the anterior faucil pillar? ||Palatoglossus|
|Which muscles are responsible for velar movement? ||Velar muscles:
Levator Veli Palatini, Musculus Uvulae, Palatoglossus, palatopharyngeous|
|Which muscles is the largest velar muscle; most responsible for velar elevation? ||Levator Veli Palatini|
|Which velar muscle is the pressure equalizer- regulates the eustachian tube? ||Tensor Veli Palatini|
|What muscles are responsible for precise movements of the tongue? ||Intrinsic tongue muscles:
- superior longitudinal muscle
- inferior longitudinal muscle
- transverse muscle
- verticle muscle|
|Which muscles are responsible for movement of the lips and cheeks? ||Muscles of the face:
-Lavator labii superior
-Levator anguli oris
-Depressor labii inferior
|Which muscle flattens the cheek and holds food in contact with teeth? ||Buccinator|