ischial tuberosity造句

• When sitting, the weight is frequently placed upon the ischial tuberosity.
• Its origin is the superolateral aspect of the ischial tuberosity and it inserts on the semitendinosus.
• It gives twigs to the muscles attached to the ischial tuberosity and anastomoses with the inferior gluteal artery.
• Continuing down the posterior side, the ischial tuberosity is a thick, rough surfaced prominence below the lesser sciatic notch.
• Avulsion fractures occur where muscles are attached : anterior superior and inferior iliac spines, ischial tuberosities, and ischiopubic rami.
• Also, many seats are hard and wooden, without the cushion to prevent compression at the area of the ischial tuberosities.
• A lower seat may shift too much weight to the " seat bones " ( " ischial tuberosities " ).
• The seat, he said, should support the ischial tuberosities, the two bones at the bottom of the pelvis that bear the rider's weight.
• The short head may be absent; additional heads may arise from the ischial tuberosity, the linea aspera, the medial supracondylar ridge of the femur, or from various other parts.
• The studies have shown that wider saddles tend to increase penile blood flow while cycling, though wider seats also induce ischial tuberosities ), thus improving a cyclist's perineal blood flow.
• The designers also found that men and women sit differently : larger men, for instance, lean back to avoid excess weight on their ischial tuberosities, the bony points of the posterior.
• Ischial bursitis ( also known as " weaver's bottom " ) is inflammation of the synovial bursa located between the gluteus maximus muscle and the ischial tuberosity, and is usually caused by prolonged sitting on a hard surface.
• Avulsion fractures of the hip bone ( avulsion or tearing away of the ischial tuberosity ) may occur in adolescents and young adults during sports that require sudden acceleration or deceleration forces, such as sprinting or kicking in football, soccer, jumping hurdles, basketball, and martial arts.
• One long perineal branch, inferior pudendal ( long scrotal nerve ), curves forward below and in front of the ischial tuberosity, pierces the fascia lata, and runs forward beneath the superficial fascia of the perineum to the skin of the scrotum in the male, and of the labium majus in the female.
• It arises by tendinous fibers from the inner and forepart of the ischial tuberosity and, running medially, is inserted into the central tendinous point of the perineum ( perineal body ), joining in this situation with the muscle of the opposite side, with the external anal sphincter muscle behind, and with the bulbospongiosus muscle in front.