Ohngren’s line
A theoretical plane passing between the medial canthus of the eye and the angle of the mandible; used as an arbitrary dividing line in classifying localised tumours of the maxillary sinus; tumours above the line invade vital structures early and have a poorer prognosis, whereas those below the line have a more favourable prognosis.
This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..
This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..