Muscle Tables Flashcards
Origin of Stylopharyngeus
Styloid process
Insertion of Stylopharyngeus
Superior border and superior horn of thyroid cartilage; lateral pharyngeal wall
Innervation of Stylopharyngeus
CN IX, Pharyngeal branches
Action of Stylopharyngeus
Elevate pharynx
Origin of Salpingopharyngeus
Inferomedial end of auditory tube
Insertion of Salpingopharyngeus
Blends with palatopharyngeus in lateral pharyngeal wall
Innervation of Salpingopharyngeus
CN X, Pharyngeal branches
Action of Salpingopharyngeus
Elevate pharynx
Origin of Palatopharyngeus
Posterior margin of hard palate, palatine aponeurosis
Insertion of Palatopharyngeus
Posterior border of thyroid cartilage and lateral wall of pharynx
Innervation of Palatopharyngeus
CN X, Pharyngeal branches
Action of Palatopharyngeus
Elevate pharynx and close oropharyngeal isthmus
Origin of Superior constrictor
Lower posterior border of medial pterygoid plate, hamulus, mylohyoid line of mandible, and intervening pteryogomandibular raphe
Insertion of Superior constrictor
Pharyngeal Tubercle and Pharyngeal Raphe
Innervation of Superior constrictor
CN X, Pharyngeal branches
Action of Superior constrictor
Constrict pharynx
Origin of Middle constrictor
Lesser and greater horns of hyoid and lower portion of stylohyoid ligament
Insertion of Middle constrictor
Pharyngeal Raphe
Innervation of Middle constrictor
CN X, Pharyngeal branches
Action of Middle constrictor
Constrict pharynx
Origin of Inferior constrictor
Oblique line of thyroid cartilage, cricoid cartilage, and the tendinous arch between them
Insertion of Inferior constrictor
Pharyngeal Raphe
Innervation of Inferior constrictor
CN X, Pharyngeal branches
Action of Inferior constrictor
Constrict pharynx
Origin of Sternocleidomastoid
Manubrium of the Sternum & Medial one-third of the Clavicle
Insertion of Sternocleidomastoid
Lateral Aspect of Mastoid Process of the Temporal Bone
Innervation of Sternocleidomastoid
CN XI
Action of Sternocleidomastoid
Rotates the Head Opposite the Contracted Side
Laterally Flexes the Neck to the Contracted Side
Bilaterally Flexes the Neck
Origin of Trapezius
External Occipital Protuberance of the Skull, C1-T12 Spinous Processes
Insertion of Trapezius
Clavicle (upper fibers)
Acromion (middle fibers)
Scapular Spine (lower fibers)
Innervation of Trapezius
Subtrapezial Nerve Plexus (CN XI and C3 and C4 Ventral Rami)
Action of Trapezius
Moves Shoulder Girdle
Origin of Digastric Anterior Belly
Digastric Fossa of Mandible
Insertion of Digastric Anterior Belly
Digastric Tendon to the Hyoid Bone
Innervation of Digastric Anterior Belly
Lowers Mandible or Raises Hyoid
Elevates & Retracts Hyoid
Action of Digastric Anterior Belly
Mylohyoid N.
Origin of Digastric Posterior Belly
Mastoid Process
Insertion of Digastric Posterior Belly
Digastric Tendon to the Hyoid Bone