Is galea a fascia?

The galea aponeurotica is a sturdy layer of dense fibrous tissue that runs between the frontal and occipital bellies of the occipitofrontal muscles. Ray and Wolff (1940) have reported that the skin, galea aponeurotica, and the fascia covering the temporal and occipital muscles are all sensitive to pain.

What is a galea in anatomy?

The galea aponeurotica (also called the galeal or epicranial aponeurosis or the aponeurosis epicranialis) is a tough fibrous sheet of connective tissue that extends over the cranium, forming the middle (third) layer of the scalp.

What is the function of occipitalis?

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.

Why is it called galea aponeurotica?

In ancient Greece, the term galea referred to a helmet worn by soldiers, typically made of animal hide or leather. The word simultaneously referred to a weasel or ferret, the animal from which the helmets were typically made.

What is the galea capitis?

part of the head, the so-called head cap, galea capitis. It is a very thin, closely-fitting membrane, completely covering the acrosome. Its rear. edge forms a transversal ridge around the head, just behind the equator.

What is the function of the epicranial aponeurosis?

At the top of your head is the epicranial aponeurosis. It is like a thin helmet beneath the scalp, and provides the attachment sites for the occipitofrontalis muscle, a muscle that controls the eyebrows and facial expressions. The abdominal aponeurosis envelopes the abdominal muscles.

What is the Procerus muscle?

The procerus muscle is a pyramidal-shaped muscle arising from the fascia of the superior nasal region, near the junction of the nasal bones, and the superolateral nasal cartilage. [1] The procerus muscle fibers run superiorly and merge with the frontalis muscle. Muscle fibers insert into the skin between the eyebrows.

Is galea a tendon?

Over the dome of the skull the epicranium is formed by a sheet of tendon that’s known as the galea, or galea aponeurotica.

What is Subaponeurotic space?

Anteriorly, the subaponeurotic space extends to the upper eyelids due to the lack of a bony insertion. This loose areolar tissue provides a potential subaponeurotic space that allows fluids and blood to pass from the scalp to the upper eyelids.

What is the origin of the occipitalis?

The occipitalis is a thin quadrilateral muscle in the posterior scalp. It originates on the occipital bone and the mastoid process of the temporal bone. It inserts into the galea aponeurotica. The occipitalis draws the scalp posteriorly.

What is the movement of the occipitalis?

Along with the atlantoaxial joint, it makes up a group called the craniovertebral joints. The principal movement at the atlantooccipital joint is flexion-extension. This movement permits nodding of the head, as seen when indicating approval (the “yes” movement).

What is the forehead muscle called?

Frontalis Muscle: Anatomy of the forehead 1.

What is an aponeurosis in anatomy?

aponeurosis, a flat sheet or ribbon of tendonlike material that anchors a muscle or connects it with the part that the muscle moves. The aponeurosis is composed of dense fibrous connective tissue containing fibroblasts (collagen-secreting spindle-shaped cells) and bundles of collagenous fibres in ordered arrays.

Is epicranial aponeurosis a muscle?

The Muscles of the Cranium. Epicranial Aponeurosis also referred to as the Galea Aponeurotica or the aponeurosis epicranialis is a broad tendon and is the intermediate section of the occipitofrontalis muscle. It runs from the superior portion of the frontal bone and covers the parietal bones to the lambdoid suture.

Is there Galea on the forehead?

The scalp is traditionally considered in 5 layers: skin, subcutaneous tissue, galea aponeurotica, loose areolar tissue, and periosteum. These layers continue into the forehead, where, in the region of the eyebrow, galea gives way to the muscles of facial expression.

What is the function of the epicranius muscle?

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.