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.
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..