FIRST ACT S TYPE NECK SKIN

Located opposite to the levator anguli oris, it pulls the corners of the mouth downward, producing a frown. The depressor anguli oris (triangularis) is also associated with the corners of the mouth.When innervated, this muscle contracts to lift the corners of the mouth, producing part of the expression of a smile. The levator anguli oris (caninus) inserts at the corners of the mouth at an angle, and is associated with other muscles including the zygomaticus, triangularis, and orbicularis oris.It acts to lift the upper lift and dilates nostril, producing a snarling expression.

The levator labii superioris alaeque nasi is the muscle of the upper lip.Actions: The buccinator pulls the cheek inwards.Attachments: It originates from upper and lower jaw and attaches to the lips and orbicularis oris.Attachments: Originates from the upper jaw and muscles of the cheek and attaches to the lips.The lips in particular are controlled by numerous small muscles. Muscles of the oral group play key roles in respiration, communication, eating, and drinking. Location of the buccinator muscle: Highlighted in orange, the buccinator is associated with the cheeks directly lateral to the mouth

FIRST ACT S TYPE NECK SKIN

Attachments: Originates from the nasal bone attaching to the skin of the forehead.

Actions: The transverse section closes the nostrils and the alar part opens them.

The alar section attaches to the cartilage of the nose and the transverse section to an aponeurosis covering the bridge of the nose.

Attachments: Originates from the upper jaw.

It is split into two sections: alar and transverse.

Nasalis:В The largest of the nasal muscles.

The nasal group of muscles are associated with movements of the nose and surrounding skin.

Attachments: Originates from the bone below the eyebrow and attaches to the skin directly above.

Corrugator Supercilii:В A small muscle located superiorly to the orbicularis oculi.

Attachments: Originates from the skull around the eye socket and attaches to ligaments found in the eyelid.

Orbicularis Oculi:В A thin muscle that surrounds the eye socket.

Schematic of head and neck muscles.: Locations of facial muscles noted. The facial muscles can be split into three groups: orbital, nasal and oral. Unlike other muscles, these muscles originate on the bone or fascia of the face and attach directly onto the skin, allowing it to be manipulated. The human face is composed of numerous muscles that control fine movement to produce facial expressions.

levator labii superioris alaeque nasi: The muscle of the upper lip.

mentalis: This muscle pushes the lower lip uppers and wrinkles the chin.

Orbicularis Oculi: A thin muscle that surrounds the eye socket.

Corrugator Supercilii: A small muscle located superiorly to the orbicularis oculi.

risorius: This muscle pulls the mouth back mimicking a smile, but does not affect the skin around the smile.

Nasalis: The largest of the nasal muscles.

Orbicularis Oris: Muscle fibers that enclose the opening to the oral cavity.

levator labii superiori: Abroad muscle responsible for elevation of the upper lip.

depressor anguli oris: This muscle is opposite to the levator anguli oris and pulls the corners of the mouth downward, producing a frown.

Procerus: The most superior of all facial muscles.

zygomatic: This muscle controls the cheeks to create smiles and frowns.

Buccinator: This muscle is located between the upper and lower jaws in the cheek, deep to the other muscles of the face.

depressor labii inferioris: An analogous muscle that lowers the bottom lipEndFragment.

Unlike other muscles, these muscles originate on bone or fascia of the face and attach directly to the skin, allowing it to be manipulated.

The human face is composed of numerous muscles that control fine movement to produce facial expressions.

First act s type neck