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Psoas minor is a curious muscle in humans, lacking a clear and universally agreed function and reported to be present in only 33–65% of individuals ( , , , ). This commentary proposes a novel functional role for psoas minor,…
This commentary focuses on the anatomy and biomechanics of the pelvic girdle and, specifically, the sacroiliac joints. In bipeds, the pelvis serves as a basic platform with three large levers acting on it (the spine and two lower limbs). Movement…
The ankle joint (talocrural joint) is a diarthrodial articulation involving the distal tibia and fibula and the body of the talus; it is the only example in the human body of a true mortise joint. The human foot is a…
The knee is the largest synovial joint in the body. It consists of three functional compartments that collectively form a dynamic, specialized hinge joint. During gait, the knee is able to withstand impressive weight-bearing loads while conducting precision movements, providing…
The pelvic girdle consists of the paired hip bones (each composed of the ilium, ischium and pubis) and the sacrum. The two pubic bones articulate anteriorly at the pubic symphysis and the sacrum articulates posteriorly with the two iliac bones…
The structure of the lower limb is specialized for support of the body’s weight, locomotion and maintenance of body stability (balance). Indeed, adaptations for weight-bearing and stability account for the major structural and functional differences between the upper and lower…
Abdominal compartmentalization The peritoneal model of abdominal compartmentalization has long been the starting point for descriptions of abdominal anatomy. According to this model, abdominal digestive organs are organized along peritoneal lines and the position of each is described using the…
The female reproductive system consists of the lower genital tract (vulva and vagina) and the upper tract (uterus and cervix with associated uterine (Fallopian) tubes and ovaries). Lower Genital Tract Vulva The female external genitalia or vulva (pudendum) include the…
The male reproductive system includes the gonads, spermatic cord, accessory sex glands and external genitalia. The male gonads, the testes, are responsible for spermatogenesis and steroidogenesis, thereby regulating reproductive function as well as normal physical and sexual development and behaviour.…