What is linea alba?

What is linea alba?

The linea alba (Latin for white line) is a single midline fibrous line in the anterior abdominal wall formed by the median fusion of the layers of the rectus sheath medial to the bilateral rectus abdominis muscles. It attaches to the xiphoid process of the sternum and the pubic symphysis.

Is the linea alba a ligament?

Linea Alba: The linea alba is a fibrous structure that runs down the midline of the abdomen. It is comprised mainly of collagen connective tissue in which it was given its Latin name, meaning ‘the white line’.

Why is the arcuate line important?

It is roughly positioned half way between the umbilicus and the pubic crest. Clinically, the arcuate line is important as the: site of entry of the inferior epigastric artery into the rectus sheath. site of weakness: site of Spigelian hernia.

What is linea alba cheek?

Linea Alba is a condition in which the inner tissue of your cheek, also known as buccal mucosa hardens. This results in the formation of a white ridge in the pink tissue of your cheek. This hardening is due to the deposition of a material called keratin.

How is linea alba formed?

The Linea Alba. —The linea alba is a tendinous raphé in the middle line of the abdomen, stretching between the xiphoid process and the symphysis pubis. It is placed between the medial borders of the Recti, and is formed by the blending of the aponeuroses of the Obliqui and Transversi.

Is linea alba normal?

Do you notice a thin white line running along the pink tissue there? This a condition known as linea alba. It’s typically harmless and doesn’t require treatment. But it may be worth getting checked out.

What does the arcuate line separate?

It is the demarcation where the internal oblique and transversus abdominis aponeuroses of the rectus sheath start to pass anteriorly to the rectus abdominis muscle, leaving only the transversalis fascia posteriorly.

Why does my linea alba show?

It’s likely caused by shifts in hormones. The increase in hormones causes melanin-producing cells in the skin to produce more pigment. Because the linea alba is always present (it’s just too light to be seen), the increased pigment makes the line very obvious. For most people, the line will disappear on its own.

What is the cause of linea alba?

Linea alba is caused by chronic irritation of the teeth against the buccal mucosa along the plane of occlusion and is considered as a frictional keratosis. 4 Additional causes include orthodontic appliances, frictions of the dentures, uneven teeth, and aggressive oral hygiene.

What does the linea alba do?

The linea alba vertically divides the “six-pack” muscle into left and right halves. The obliques cover the sides of the abdomen. Losing excess body fat and strengthening the abdominal muscles will make the linea alba more visible.

What is the derivation of the linea alba?

In humans linea alba runs from the xiphoid process to the pubic symphysis. The name means white line and the linea alba is indeed white, being composed mostly of collagen connective tissue. It is formed by the fusion of the aponeuroses of the muscles of the anterior abdominal wall, and it separates the left and right rectus abdominis muscles.

What is the linea alba in anatomy?

The linea alba (Latin for white line) is a single midline fibrous line in the anterior abdominal wall formed by the median fusion of the layers of the rectus sheath medial to the bilateral rectus abdominis muscles. It attaches to the xiphoid process of the sternum and the pubic symphysis. The umbilicus passes through the linea alba.

What is linea alba hernia?

The linea alba is a strip of connective tissue visible as the depressed line that extends down the middle of the abdomen between the six pack muscles. An epigastric hernia presents as a small bulge between the ribcage and the belly button that usually gets no bigger than the size of a golf ball.