Some will even release during a backward fall - the most common type of fall that results in injuries to the anterior cruciate ligament.
This is the most dangerous type of fall, because it can cause you to tear your anterior cruciate ligament, otherwise known as the ACL.
The tetraspores may arise by the simultaneous division of the contents of a sporangium, when they are arranged tetrahedrally, or they may arise by two successive divisions, in which case the arrangement may be zonate when the spores are in a row, or cruciate when the second divisions are at right angles to the first, or tetrahedral when the second divisions are at right angles to the first and also to one another.
