Blood Vessels – Smooth Musculature on the left
Need for solidification of the vascular wall (arteries and veins).
HH in equilateral midbrain, left.
During vessel wall necrosis, the smooth musculature layer simultaneously thickens, preventing vessel perforation.
In the pcl-phase, vessel wall necrosis is repaired (athero- or arteriosclerosis). The reinforced vascular smooth musculature remains thickened.
locally increased peristalsis
Simultaneous smooth muscle thickening during Intima vascular necrosis as a useful germ layer-spanning combination.