CH 4 Muscle System
About this set
Created by:
simonenicole on October 28, 2010
Subjects:
Log in to favorite or report as inappropriate.
Order by
51 terms
Terms | Definitions |
|---|---|
 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 |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.