Adventitial function Animals 2 Arterial buffering function 2 Arterial conduit function 2 Brachiocephalic Trunk 2 Connective Tissue 2 Elastic modulus 2 Elasticity 2 Male 2 Models, Biological 2 Muscle, Smooth, Vascular 2 Sheep, Domestic 2 Tissue Culture Techniques 2 Transducers, Pressure 2 Viscosity 2 Viscous modulus 2 adventitia 2 animal experiment 2 animal tissue 2 arterial circulation 2 artery diameter 2 artery tone 2 artery wall 2 article 2 brachiocephalic trunk 2 controlled study 2 impedance 2 in vitro study 2 in vivo study 2 male 2