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Head and Neck Skeletal Muscles

Head and Neck Skeletal Muscles. Travis Williamson. Categories . Facial Muscles -unique because they are inserted into soft tissues such as skin or other muscles. -Allow us to smile, grin, kiss, frown. -. Categories. Chewing -Chewing Muscles break down food for the body to absorb.

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Head and Neck Skeletal Muscles

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  1. Head and Neck Skeletal Muscles Travis Williamson

  2. Categories Facial Muscles -unique because they are inserted into soft tissues such as skin or other muscles. -Allow us to smile, grin, kiss, frown. -

  3. Categories Chewing -Chewing Muscles break down food for the body to absorb. -All facial muscles (chewing and facial muscles) are paired with the exception of the platysma, frontails, orbicularisoris, and occipitals.

  4. Frontalis (Facial) Occipitalis -Runs from the cranial aponeurosis to the eyebrow skin. -Allows the raising of eyebrows for expression and forehead movement. The Occipitalis pulls the scalp back.

  5. OrbicularisOculi (Facial) Fibers run in circles around the eyeball Allows you to blink, squint, and wink. Has many nerve receptors to assist with reaction time in blinking.

  6. Buccinator (Facial/ Chewing) Hybrid between Facial and Chewing muscle Facial because it pulls the cheek to flatten it, like your whistling. Chewing because it helps to hold food in place between teeth.

  7. Zygomaticus -goes from the cheek bone to the corner of the mouth. -it raises the corner of the mouth up words, as if smiling .

  8. CHEWING MUSCLES

  9. Masseter Runs between the mandible and the zygomatic processes. Elevates the mandible to close the jaw.

  10. Temporalis Fan-shaped muscle that overlaps the temporal bone. It is between the mandible and helps the masseter in closing the jaw.

  11. Neck Muscles

  12. Platysma Covers the anterior neck, as a single sheet. Runs from the chest to the bottom of the mouth It pulls the muscles downward to frown.

  13. Sternocleidomastoid(ster no-kil do-mastoid) Two headed muscle, one coming from the sterum and oen coming from the clavicle. Fuse into temporal bone These muscles are responsible for bowing and tilting the head.

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