Cardinal points
The four points in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six points of a compound optical system: the anterior focal point, the posterior focal point, the two principal points, and the two nodal points.
Cardinal points The four points in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six points of a compound optical system: the anterior focal point, the posterior focal point, the two..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..
