Occipitalis is a muscle located at the back of the skull, playing a crucial role in moving the scalp and maintaining tension in the occipitofrontalis muscle. It originates from the superior nuchal line of the occipital bone and inserts into the epicranial aponeurosis. Its actions contribute to facial expressions, particularly those associated with surprise or attention.
The name "occipitalis" is derived from the Latin word "occiput," meaning the back part of the skull, indicating its anatomical location.
Without the occipitalis, the human body would have limited ability to control scalp movement, which could affect the range and expressiveness of facial expressions, particularly those involving eyebrow elevation.
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