scalene hiatus
triangular gap bounded by the scalenus anterior and scalenus medius muscles and the first rib to which the muscles attach; the hiatus provides passage for the subclavian artery and the roots of the brachial plexus. Compression of the structures passing through the hiatus by any means is manifest as thoracic outlet syndrome.
Synonym: interscalene triangle.
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..