Pubic pectinate ligament

Normal adult men and women have an area with pubic hair on their lower body, and this area is the pubic area. The main function of pubic hair is to reduce the friction of the pubic bone between both parties during sexual intercourse, because the pubic bone of the human body is a protruding bone. The pubic bone also has a curved arc and is relatively thick. There is another part that makes up the pubic bone called the pubic pecten. So what is the pubic pecten ligament?

1. What is a pubic comb?

The pubic pecten is a thin bone with a sharp upper edge on the pubic ramus. The pubic pecten ends at the pubic tubercle anteriorly and transitions posteriorly through the iliopectine eminence to the arcuate line. Provides attachment for the inguinal falx, lacunar ligament and inverse ligament. The direction of the pubic pecten affects the morphology of the pubic tubercle, so it should be taken into consideration when inferring age based on pubic characteristics. There is a sharp ridge on the superior pubic branch, called the pubic comb, which moves backward to the arcuate line and ends forward at the pubic tubercle, which is the pelvic landmark of the small pelvis.

2. What is the pubic pectine ligament?

The pubic pectinate ligament is also called Cooper's ligament. The lower edge of the external oblique muscle aponeurosis folds back upward and backward between the anterior superior iliac spine and the pubic tubercle to form the inguinal ligament. A small part of the fibers at the medial end of the ligament moves downward and backward and turns outward to become the lacunar ligament (lacuna ligament). The part of the lacunar ligament that continues outward and attaches to the pubic pecten is called the pubic pecten ligament.

3. The structure of the pubic bone

The pubic bone is located in the front and lower part of the hip bone and is divided into the body and the upper and lower branches. The body of the pubic bone constitutes the anterior and inferior part of the acetabulum. It is relatively thick and extends forward and medially to form the superior pubic ramus, which bends downward and transfers to the inferior pubic ramus. The upper edge of the superior ramus of the pubic bone is thin and sharp, called the pubic comb. It is continuous with the arcuate line posteriorly and ends in a round bulge forward, which is the pubic tubercle. The pubic bone is located in the lower abdomen and inner thigh. The pubic tubercle is an important body surface landmark. It also has a ridge extending inward to the upper edge of the pubic symphysis, called the pubic ridge.

On the inner side of the transition between the superior and inferior branches of the pubic bone, there is an oval rough surface called the pubic symphysis surface. The large hole formed by the pubic bone and the ischium is called the obturator foramen. The pubic bone forms the anterior and lower part of the hip bone, and is divided into two parts: upper and lower branches. The body constitutes the anterior and inferior 1/5 of the acetabulum. The upper edge of the bone surface at the junction with the ilium is rough and raised, called the iliopectine protuberance, from which the superior pubic ramus extends forward and inward, and its distal end turns sharply downward to become the inferior pubic ramus. There is a sharp ridge on the superior ramus of the pubic bone, called the pubic pecten, which moves posteriorly to the arcuate line and ends anteriorly at the pubic tubercle. It is an important body surface landmark.

The rough upper edge of the pubic tubercle to the midline is the pubic ridge, which can also be palpated on the body surface. The oval rough surface on the inner side of the transition between the superior and inferior branches of the pubic bone is called the pubic symphysis. The two sides of the symphysis are connected by cartilage to form the pubic symphysis. The inferior pubic branch extends posteriorly, inferiorly and outwards to join the sciatic branch, so that the pubic bone and ischium together form the obturator foramen. The pubic bone makes up 2/5 of the hip bone. When a woman gives birth, the pubic symphysis opens to allow the baby to be delivered smoothly.