What layer of an artery provides a smooth surface for blood cells to flow through and helps prevent blood clotting?Multiple choice question.tunica externaendotheliumtunica mediatunica adventitia

Which layer of a blood vessel wall is the thickest and contains smooth muscle?Multiple choice question.tunica mediatunica externatunica interna

The tunica media is the ______ layer in a blood vessel wall.Multiple choice question.outerinnermiddle

What is the outermost layer of an artery's wall called?Multiple choice question.tunica externatunica mediatunica internaendothelium

Fill in the Blank QuestionFill in the blank question.The middle layer of the blood vessel wall is the tunica .

What is the tunica interna?Multiple choice question.the middle layer of a blood vessel walls composed of smooth musclethe outermost layer of a blood vessel walls composed of loose connective tissuethe inner lining of a blood vessel's wall composed of simple squamous epitheliumthe branching of vessels observed in the heart