ACTIVITY 1

ACTIVITY 1

ACTIVITY 1

by Lara Nicole Herezo -
Number of replies: 0
  1. Name: Platysma 
    1. Origin: Fascia over the clavicles, deltoid muscles, and pectoralis major muscles 
    2. Insertion: Mandible
    3. Action: Depression of mandible with stretching of lower lips
  2. Name: Mentalis 
    1. Origin: Mandible 
    2. Insertion: Skin of lower lip
    3. Action: Raises and protrudes lower lips and chin
  3. Name: Orbicularis oris 
    1. Origin: Midline of the mandible and maxilla 
    2. Insertion: Tissues of the upper and lower lips
    3. Action: Compresses and protrudes the lips
  4. Name: Corrugator supercilii 
    1. Origin: Medial end of superciliary arches 
    2. Insertion: Skin of the eyebrow above the middle part of the supraorbital margin
    3. Action: Longitudinal movement of the eyebrow and wrinkles the forehead
  5. Name: Orbicularis oculi 
    1. Origin: Frontal bone, maxilla, lacrimal bone 
    2. Insertion: Lateral palpebral raphe and tarsal plates (eyelids)
    3. Action: Closes eyelids and compresses lacrimal sac
  6. Name: Occipitofrontalis
    1. Origin: Superior nuchal lines on the occipital bone 
    2. Insertion: Epicranial aponeurosis
    3. Action: Wrinkles the forehead, draws the scalp backwards