What nerve Innervates the corrugator muscle?

The temporal branch of the facial nerve consisted of at least 3 rami: inferior, middle, and superior branches. A unique ramus innervating the corrugator supercilii muscle is from the middle ramus of the temporal branch of the facial nerve.

What is the corrugator muscle?

The corrugator supercilii muscle is a small, narrow, pyramidal muscle close to the eye. It arises from the medial end of the superciliary arch, and inserts into the deep surface of the skin of the eyebrow. It draws the eyebrow downward and medially, producing the vertical wrinkles of the forehead.

What Innervates the frontalis muscle?

Three branches of the temporal nerve, the anterior, middle, and posterior, are responsible for innervating the orbicularis oculi, frontalis, and the corrugator muscles. The medial branches of the supraorbital nerve are superficial and the lateral branches are deep.

What nerve Innervates the procerus muscle?

In all specimens, the procerus muscle was supplied by the buccal branch of the facial nerve, which coursed infraorbitally.

Which muscles assists with smiling?

Muscles used to smile:

• Zygomaticus major – 2 muscles draw the angle of mouth upward.
• Zygomaticus minor – 2 muscles draw the angle of mouth upward.
• Orbicularis Oculi – 2 muscles, these are used to close eyelids.
• Levator Labii superioris – 2 muscles raise the upper lip.

Where do you inject corrugator?

Doctors attempting to inject the corrugator supercilii muscle often inject the lower portion of the frontalis muscle instead, causing the medial portion of the brow to descend and the lateral portion of the brow to arch upward unnaturally, generating a Mephisto effect. (0.1MB).

What is the function of the Platysma muscle?

The platysma is responsible for drawing the skin around the lower part of your mouth down or out, which creases the skin in your lower face, according to the Loyola University Medical Education Network.

How do you relax a corrugator muscle?

Corrugator supercilii exercises Start by placing the tip of your middle fingers in the center of each of your eyebrows. Tug them apart while simultaneously maintaining a frown. Hold the position for six seconds then release.

Why is the corrugator Supercilii muscle important?

Function. Corrugator supercilii exerts traction on the skin above the supraorbital margin. The combined actions of the orbicularis oculi and corrugator muscle pull the eyebrows medially and inferiorly. This action can serve different functions, such as protecting the eyes from bright sunlight or rain.

How is the corrugator supercilii muscle innervated?

Once a muscle is innervated (receives electrical impulses from the brain and nerves) it will contract and move. The corrugator supercilii muscle is innervated by cranial nerve VII, which is also known as facial nerve VII.

What kind of muscle is the corrugator muscle?

Corrugator supercilii muscle (Musculus corrugator supercilii) Corrugator supercilii is a small, pyramidal muscle that belongs to the circumorbital and palpebral group of facial muscles, along with the levator palpebrae superioris and orbicularis oculi muscles.

Where does the insertion of the corrugator occur?

Key facts about the corrugator supercilii muscle Origin Medial end of superciliary arches, Fiber Insertion Skin above middle of supraorbital margin Function Creates vertical wrinkles over glabella Innervation Temporal branches of facial nerve (CN VI Blood supply Ophthalmic artery, superficial temporal

How is the frown formed by the corrugator muscle?

The frown is formed mainly by the repeated contraction of the corrugator supercilii muscle. We studied the relevant nerve supply to the muscle in detail to enhance selective neurotomy. A bicoronal incision extending downward to the preauricle was made and the subgaleal dissection proceeded in 19 hemifaces of cadavers.