Procerus muscle
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| Procerus | ||
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| Muscles of the head, face, and neck. (Procerus visible at upper left, at top of nose.) | ||
| Gray's | subject #107 382 | |
| Origin: | From fascia over the lower of the nasal bone | |
| Insertion: | Into the skin of the lower part of the forehead between the eyebrows | |
| Blood: | ||
| Nerve: | Buccal branch of the facial nerve | |
| Action: | Draws down the medial angle of the eyebrow giving expressions of frowning | |
For other uses see Procerus (disambiguation)
The Procerus (Pyramidalis nasi) is a small pyramidal slip of muscle arising by tendinous fibers from the fascia covering the lower part of the nasal bone and upper part of the lateral nasal cartilage; it is inserted into the skin over the lower part of the forehead between the two eyebrows, its fibers decussating with those of the Frontalis.
It is deep to the superior orbital nerve, artery and vein. It helps to pull that part of the skin between the eyebrows downwards, which assists in flaring the nostrils. It can also contribute to an expression of anger.
It is also known as the depressor glabellae or pyramidalis nasi
[edit] External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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