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Epicranial Muscle

muscle of facial expression located in the scalp region with a frontal and occiptial belly

Obicularis Oculi Muscle

muscle of facial expression that encircles the eye; responsible for closing eyelid

Corrugator Supercilli Muscle

muscle of facial expression in the eye region, deep to the superior portion of the orbicularis oculi muscle

Buccinator Muscle

muscle of facial expression that forms the anterior portion of the cheek or the lateral wall of the oral cavity

Risorius Muscle

thin muscle of facial expression in the mouth region

Levator Labii Superioris Muscle

a broad, flat muscle of facial expression in the mouth region

Zygomaticus Major Muscle

muscle of facial expression in the mouth region partially responsible for smiling

Zygomaticus Minor Muscle

small muscle of facial expression in the mouth region, medial to the zygomaticus major muscle;

Levator Anguli Oris Muscle

facial expression muscle deep to both the zygomaticus major and minor muscles

Depressor Anguli Oris Muscle

triangular muscle of facial expression in the lower mouth region

Depressor Labii Inferioris Muscle

facial expression muscle deep to the depressor anguli oris muscle

Mentalis Muscle

short thick muscle of facial expression superior and medial to the mental nerve in the mouth region;

Platysma Muscle

muscle of facial expression that runs from the neck all the way to the mouth, covering the anterior cervical triangle;

Masseter Muscle

mastication muscle that is the broad, thick, rectangular muscle on each side of the face, anterior to the parotid salivary gland

Temporalis Muscle

broad, fan-shaped muscle of mastication on each side of the head that fills the temporal fossa, superior to the zygomatic arch.

Medial Pterygoid Muscle

the paired muscle of mastication, extending from medial pterygoid plate to the inside angle and ramus

Lateral Pterygoid Muscle

external pterygoid muscle with two separate heads of origin, lying within the infratemporal fossa, deep to the temporalis muscle

Hyoid Muscle

muscles that assist in the actions of mastication and swallowing lying superficial in neck tissues

Suprahyoid muscles

muscles located superior to the hyoid bone; digastric, mylohyoid, stylohyoid, and geniohyoid muscles

Digastric Muscle

suprahyoid muscle that has anterior and posterior bellies

Mylohyoid muscle

anterior suprahyoid muscle that is deep to the digastric muscle, with fibers running transversely between the two sides of the mandible

Stylohyoid muscle

thin posterior muscle, anterior and superficial to the posterior belly of the digastric muscle

Geniohyoid muscle

an anterior suprahyoid muscle that is deep to the mylohyoid muscle

Sternothryoid muscle

an infrahyoid muscle located superficial to the thyroid gland

Infrahyoid muscle

four pairs of hyoid muscles inferior tothe hyoid bone; include: sternohyoid, sternothyroid, thyrohyoid, and omohyoid muscles

Mastication Muscles

four pairs of muscles attached to the mandible that include the masseter, temporalis, medial pterygoid, and lateral pterygoid muscles

Omohyoid Muscle

an infrahyoid muscle lateral to both the sternothyroid and thyrohyoid muscles with superior and inferior bellies

Thyrohyoid Muscle

an infrahyoid muscle covered by the omohyoid and sternohyoid muscles

Median Septum

deep fibrous structure in the midline depression corresponds with the median lingual sulcus

Median Lingual Sulcus

midline depression on the tongue's dorsal surface

Intrinsic Tongue Muscles

muscles of tongue located enitrely inside the tongue, including the superior longitudinal, transverse, vertical and inferior longitudinal muscles

Extrinsic Tongue Muscles

tongue muscles with different origins outside the tone and have all their insertions inside the tongue, include the genioglossus, styloglossus, and hyoglossus muscles

Genioglossus muscle

fan-shaped extrinsic tongue muscle superior to the geniohyoid muscle separated by tongue's median septum

Styloglossus muscle

extrinsic tongue muscle that attaches to anterior aspect the styloid process and runs to the lateral aspect of the hyoglossus muscle

Hyoglossus muscle

extrinsic tongue muscle extending from hyoid bone up into the back of the tongue lateral to the genioglossus to pull the dorsum down

Palatoglossus muscle

soft palate muscle muscle that forms the anterior faucial pillar in oral cavity, a vertical fold anterior to eaqch palatine tonsil

Soft Palate

forms the nonbony posterior portion of the roof of the mouth or the oropharynx and connects laterally with the tongue

Palatopharyngeus Muscle

soft palate muscle that forms the posterior faucial pillar in the oral cavity, a vertical fold posterior to each palatine tonsil

Levator Veli Palatini Muscle

muscle mainly situated superior to the soft palate

Tensor Veli Palatini Muscle

special muscle that stiffens the soft palate responsible for opening the auditory tube to allow air to flow between the pharynx and middle ear cavity

Uvula Muscle

muscle of the soft palate located in the posterior region of the oral cavity

Sternocleidomastoid Muscle

one of the largest and most superficial cervical muscles that serves as primary muscular landmark of the neck during an extaroral examination; dividing neck into anterior and posterior cervical triangles

Trapezius Muscle

superficial cervical muscle covering the lateral and posterior surfaces of the neck

Levator labii superioris alaeque nasi muscle

a muscle of facial expression in the upper frontal process of the maxilla

Orbicular Oris Muscle

is an important muscle of facial expression in the mouth region, acting to shape and control the size of the mouth opening and important for creating the lip positions and movements during speech

Intrinsic Tongue Muscles (action)

tongue muscles that act to change shape of the tongue

Tongue Muscles (actions)

aids complex movements during mastication, speaking and swallowing; suspending and anchoring the tongue to the mandible, styloid process, and hyoid bone

Superior Longitudinal Tongue Muscle

intrinsic tongue muscle that is most superficial and on dorsal tongue surface

Transverse Tongue Muscle

intrinsic tongue muscle deep and superior to longitudinal tongue muscle

Inferior Longitudinal Tongue Muscle

intrinsic tongue muscle on ventral tongue surface

Pharynx Muscles

Stylopharyngeus, Pharyngeal constrictor and Soft palate

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