Morphological and biomechanical structural characteristics of medial cerebral artery in adults

Abstract

The research goal is to study general strength, breaking point, Young's modulus (tensile modulus), absolute and relative strain of medial cerebral artery. Materials end methods. External diameter of medial cerebral artery, thickness of its wall and diameter of a lumen have been measured under the microscope on cross-section edges. In total 200 arteries (144 — from corpses of men, 56 — from corpses of women) received not later than 16 hours after autopsy of adults have been investigated. Results. Lethal cases resulted from acute or chronic vascular cerebral pathology have not been included in the study. Authentic predominance of wall thickness (14,8%), lumen diameter (50,3%) and general wall strength (13,8%) has been revealed statistically in men. Bilateral differences of parameters have been expressed by 1,0% (external diameter and wall thickness of an artery) to 10,0% (Young's modulus) and have been determined as statistically insignificant (p>0,05). Age aspect has shown intensity of morphological characteristics of medial cerebral artery. In conclusion it is worth while noting that after the age of 35 wall strength and resistance to strain of medial cerebral artery are authentically diminished; the artery becomes less rigid. Capability to elongation remains constant but after the age of 75 it decreases

Keywords

• age-specific and sexual variability
• medial cerebral artery
• strains
• wall strength