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.
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..
If New Zealand has lots of unique animals, it's also got a whole lot of unique plants. Find out more about some of them,..
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..
