What does the epicranius muscle cover?

What does the epicranius muscle cover?

The occipitofrontalis muscle (epicranius muscle) is a muscle which covers parts of the skull. It consists of two parts or bellies: the occipital belly, near the occipital bone, and the frontal belly, near the frontal bone.

What is a epicranius in anatomy?

The Epicranius (Occipitofrontalis) is a broad, musculofibrous layer, which covers the whole of one side of the vertex of the skull, from the occipital bone to the eyebrow. It consists of two parts, the Occipitalis and the Frontalis, connected by an intervening tendinous aponeurosis, the galea aponeurotica.

What is the action of the epicranius Frontalis?

Occipitofrontalis muscle

Origin	Frontal belly (frontalis): Skin of eyebrow, muscles of forehead Occipital belly (occipitalis): (Lateral 2/3 of) superior nuchal line
Insertion	Epicranial aponeurosis
Action	Frontal belly: Elevates eyebrows, wrinkles skin of forehead Occipital belly: Retracts scalp

What is the purpose of the occipitalis muscle?

The occipitalis muscle is innervated by the facial nerve and its function is to move the scalp back. The muscles receives blood from the occipital artery.

What is the epicranius formed by?

The epicranius is formed by two muscles called the frontalis and the: procerus,occipitalis,corrugator or temporalis.

What is the movement of the occipitalis?

The occipitalis muscle functions to move the eyebrows and scalp up and back and wrinkle the forehead, which are facial movements often used to make facial expressions when you are shocked or surprised.

What is the movement of the Occipitalis?

What is the Sternocleidomastoid function?

Function. Rotation of the head to the opposite side or obliquely rotate the head. It also flexes the neck. When acting together it flexes the neck and extends the head.

How would you use your Epicranius?

They insert on the mastoid process of the temporal bone. They can flex or extend the head, or can rotate the towards the shoulders. The epicranius muscle is also very broad and covers most of the top of the head. The epicranius muscle includes a middle section which is all aponeurosis.

What is the function of Frontalis?

The frontalis muscle is responsible for elevating the eyebrows, while the corrugator supercilii, orbicularis oculi, and procerus play a role in its depression. The function of the forehead is often spared in middle cerebral artery strokes.

Is the epicranius muscle part of the skull?

The occipitofrontalis muscle (epicranius muscle) is a muscle which covers parts of the skull.

How is the epicranial muscle connected to the fascia?

Epicranius. The occipitalis and frontalis sections of the epicranial muscle coordinate movement with the help of a tendon that connects them. The frontalis section of the epicranial muscle is connected to the fascia (connective tissue) of the facial muscles and facial skin above the nose and eyes.

What causes paralysis of the epicranial muscle in the face?

Epicranius. Blunt trauma or other damage to the epicranial muscle can cause facial paralysis, impacting the ability to move the eyebrows and forehead. A sudden onset of facial paralysis requires a medical diagnosis because facial paralysis can be caused by underlying disease or injuries that affect both the epicranial muscle and related nerves.

Which is part of the epicranial muscle raises the eyebrows?

Epicranius. The frontalis section controls movement of the forehead and eyebrows, thus enabling forehead wrinkling. The occipitalis controls backward movement of the scalp, which raises the eyebrows. The occipitalis and frontalis sections of the epicranial muscle coordinate movement with the help of a tendon that connects them.