Actions Flashcards
Platysma (2)
Tense the skin of the neck
Grimace
Trapezius (5)
Elevate, retract, and rotate scapula superiorly
Shoulders fixed: extend head (bilateral), flex head (unilateral)
Sternocleidomastoid (2)
Unilateral: ipsilateral lateral flexion of neck and contralateral rotation
Bilateral: flex and extends neck at atlanto-occipital joint
Scalenes (2)
Elevate ribs 1 and 2
Assists in respiration
Longus colli (2)
Bilateral: flex and rotate head and neck
Unilateral: lateral flexion of neck
Longus capitis (2)
Flex and rotate head and neck
Digastric (2)
Elevates hyoid during swallowing
Depresses mandible
Stylohyoid (2)
Elevates and retracts hyoid
Mylohyoid (1)
Elevates hyoid, floor of mouth, and tongue during swallowing and speaking
Geniohyoid (3)
Pulls hyoid anterosuperiorly
Shortens floor of mouth
Widens pharynx
Sternohyoid (1)
Depresses hyoid after elevation during swallowing
Omohyoid (3)
Depresses, retracts, and steadies hyoid
Thyrohyoid (2)
Depresses hyoid
Elevates larynx
Sternothyroid (2)
Depresses hyoid and larynx
Cricothyroid (1)
Stretch and tense vocal folds
Thyroepiglottis (1)
Widens laryngeal inlet by inferiorly displacing epiglottis
Thyroarytenoid (2)
Relax vocal ligament
Adducts vocal folds
Lateral cricoarytenoid (1)
Adducts vocal folds
Posterior cricoarytenoid (1)
Abducts vocal folds
Transverse and oblique arytenoid (2)
Adducts arytenoid cartilages
Adducts vocal folds
Vocalis (1)
Tightens vocal folds
Orbicularis oris (3)
Closes mouth
Protrusion of lips
Pursing of lips
Depressor anguli oris (2)
Depresses the corners of the mouth
Antagonizes the levator anguli oris muscle
Levator anguli oris (1)
Elevates the corners of the mouth
Zygomaticus major (1)
Moves the angle of the mouth superiorly and laterally
Zygomaticus minor (1)
Helps elevate the upper lip
Levator labii superioris (1)
Elevates the upper lip
Levator labii superioris alaque nasi (2)
Elevates upper lip
Dilates the nostril
Risorius (1)
Moves the corners of mouth laterally
Depressor labii inferioris (1)
Depresses lower lip
Mentalis (1)
Protrudes lower lip
Buccinator (2)
Aids in mastication keeping the bolus between cheek and teeth
Helps forcibly expel air or create a sucking action
Posterior auricular (1)
Draws auricle anteriorly
Anterior auricular (1)
Draws auricle superiorly
Superior auricular (1)
Draws auricle posteriorly
Compressor naris (1)
Compresses the nostril
Dilator naris (1)
Dilates the nostril
Depressor septi (1)
Draws nasal septum anteriorly to constrict nostril
Procerus (1)
Brings skin together producing transverse wrinkles on the bridge of the nose
Frontalis (3)
Elevates eyebrows
Wrinkles forehead
Wrinkles the back of the head
Occipitalis (3)
Elevates eyebrows
Wrinkles forehead
Wrinkles the back of the head
Orbital (1)
Forcible closure of the eye
Lacrimal (1)
Aids the flow of tears
Palpebral (1)
Closure of eyelids gently (blinking)
Corrugator supercilii (1)
Draws the eyebrows medially and inferiorly
Masseter (1)
Elevates mandible
Temporalis (2)
Elevates mandible
Retrudes mandible
Medial pterygoid (3)
Elevate mandible
Protrude mandible
Lateral excursion of the mandible
Lateral pterygoid (2)
Depress and protrude mandible
Lateral excursion of the mandible
Superior oblique (3)
Incyclotorsion
Depression
Abduction
Inferior oblique (3)
Excyclotorsion
Elevation
Abduction
Superior rectus (3)
Elevation
Incyclotorsion
Adduction
Inferior rectus (3)
Depression
Excyclotorsion
Adduction
Lateral rectus (1)
Abduction of eye
Medial rectus (1)
Adduction of eye
Levator palperae superioris (1)
Elevates superior eyelid
Tensor veli palatini (2)
Elevates and tenses soft palate
Assists in opening auditory tube when swallowing
Levator veli palatini (1)
Works in conjunction with tensor veli palatini muscle
Salpingopharyngeus (1)
Elevate pharynx and larynx when swallowing and speaking
Superior pharyngeal constrictor (1)
Constricts the walls of the pharynx when swallowing
Stylopharyngeus (2)
Elevates larynx and pharynx
Dilates pharynx
Palatopharyngeus (1)
Elevates pharynx
Styloglossus (2)
Lift lateral edges of tongue
Retracts tongue
Palatoglossus (3)
Constricts the isthmus
Elevates the tongue
Depresses soft palate
Genioglossus (1)
Protrudes the tongue
Hyoglossus (2)
Retrudes the tongue
Depresses lateral margins of tongue