Chapter 21 Complete Final Exam
Question and Answer Study Guide
Five Types of Blood Vessels - correct answerArteries
Arterioles Capillaries Venules
Vein
Arteries - correct answerCarry blood away from the heart to the organs
Arterioles - correct answerMedium sized arteries can branch off into this smaller arteries.
Capillaries - correct answerWhen arterioles enter tissues they branch into this smaller vessels.
Venules - correct answerGroup of capillaries reunite to form this.
Veins - correct answerCarries blood from the tissues back to the heart.
Angiogenesis - correct answerFormation of new blood vessels
Blood Vessels Contain Three Layers - correct answerEpithelial inner layer (Tunica Interna)
Middle layer of smooth muscle and elastic connective tissue (Tunica Media)
Connective tissue outer covering (Tunica Externa) Lumen - correct answerInterior opening of the vessels where blood flows.
Tunica Interna - correct answerEndothelium
Basement Membrane
Internal elastic lamina
Endothelium - correct answerThin layer of flatten cells in the tunica interna
Basement Membrane - correct answerProvide supports for the epithelial layer; Also guide cell movement in the repair of blood vessels
Internal elastic lamina - correct answerForms the boundary between tunica interna and tunica media; Looks like swiss cheese to let material diffuse from tunica interna to the tunica media
Tunica Media - correct answerSmooth Muscle
External elastic lamina
(It also shows the most variations between different blood vessels)
Smooth Muscle in Tunica Media - correct answerRegulate the diameter of the lumen.
Vasoconstriction - correct answerNarrowing of the lumen (decrease in diameter)
Vasodilation - correct answerIncrease in lumen diameter (decrease in sympathetic pathway stimulus)
External elastic lamina - correct answerSeparate the tunica media from tunica externa