Pyramidalis muscle

Pyramidalis muscle is a small triangular muscle, anterior to the rectus abdominis, and contained in the rectus sheath.

Etymology

The term "pyramidalis" is derived from the Latin word "pyramis" which means "pyramid". This is due to the muscle's shape which is similar to that of a pyramid.

Anatomy

The pyramidalis muscle is located in the lower abdomen and is shaped like a small pyramid. It is thin and flat and is located in the pelvis region. The muscle is attached to the pubic bone and the linea alba, a fibrous structure that runs down the midline of the abdomen.

Function

The function of the pyramidalis muscle is not well understood. It is thought to tense the linea alba.

Clinical significance

The pyramidalis muscle is not a significant muscle in terms of function. It is often used as a landmark in surgical procedures due to its location. It is also one of the muscles that can be absent in some people.

Related terms

• Rectus abdominis muscle
• Pelvis
• Pubic bone
• Linea alba

See also

• List of muscles of the human body

Pyramidalis muscle Resources
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