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The orbicularis oculi is a muscle in the face that closes the eyelids. It arises from the nasal part of the frontal bone, from the frontal process of the maxilla in front of the lacrimal groove, and from the anterior surface and borders of a short fibrous band, the medial palpebral ligament . From this origin, the fibers are directed laterally ...
The zygomatic branches of the facial nerve ( malar branches) are nerves of the face. They run across the zygomatic bone to the lateral angle of the orbit. Here, they supply the orbicularis oculi muscle, and join with filaments from the lacrimal nerve and the zygomaticofacial branch of the maxillary nerve (CN V 2 ).
Orbicularis oris muscle. Inferior labial artery and superior labial artery. It is sometimes known as the kissing muscle[ 1] because it is used to pucker the lips. In human anatomy, the orbicularis oris muscle is a complex of muscles in the lips that encircles the mouth. [ 2] It is not a true sphincter, as was once thought, as it is actually ...
The extraocular muscles, or extrinsic ocular muscles, are the seven extrinsic muscles of the eye in humans and other animals. [1] Six of the extraocular muscles, the four recti muscles, and the superior and inferior oblique muscles, control movement of the eye. The other muscle, the levator palpebrae superioris, controls eyelid elevation.
The facial muscles are just under the skin ( subcutaneous) muscles that control facial expression. They generally originate from the surface of the skull bone (rarely the fascia), and insert on the skin of the face. When they contract, the skin moves. These muscles also cause wrinkles at right angles to the muscles’ action line.
Contents. Buccal branches of the facial nerve. Plan of the facial and intermediate nerves and their communication with other nerves. (Labeled at center bottom, third from the bottom.) The nerves of the scalp, face, and side of neck. The buccal branches of the facial nerve (infraorbital branches), are of larger size than the rest of the branches ...
The frontalis muscle is thin, of a quadrilateral form, and intimately adherent to the superficial fascia. It is broader than the occipitalis and its fibers are longer and paler in color. It is located on the front of the head. The muscle has no bony attachments. Its medial fibers are continuous with those of the procerus; its intermediate ...
The smile employs two muscle groups, the zygomatic major and orbicularis oculi muscles, which are in “the top of the cheeks and the corner of the eyes," Brooks said.