Rio Bio 202 Exam 2 questions and verified correct answers 2023

Tunica Intima - correct answer internal-contains endothelium Tunica Media - correct answer (middle)-layers of elastin and smooth muscle cells, where vasoconstriction/dilation occurs Tunica Externa - correct answer (external)-loosely woven collagen fibers, also contains nerves/elastin fibers/lymph vessels Elastic Arteries - correct answer (Conducting)-located near the heart, aorta and branches, largest in diameter Muscular Arteries - correct answer (Distributing)-majority of 'named' arteries, deliver blood to specific organs Arterioles - correct answer smallest of arteries, determine blood flow into capillaries through constriction/dilation Continuous Capillaries - correct answer abundant in muscles/skin, tight junctions formed by endothelial cells gaps in those junctions=intercellular clefts, compile *blood brain barrier* Fenestrated Capillaries - correct answer endothelial cells contain pores or fenestrations, found in the kidneys Sinusodal Capillaries - correct answer -'leaky' capillaries, found in *liver, bone marrow, lymph and endocrine tissues*, contain large intercellular clefts Venules - correct answer begin at capillaries, extremely porous, fluids/WBCs move easily in and out