Questions: 1-291. Which blood vessels permit
exchange between the blood and surrounding interstitial fluid?2. The venae cavae and their
tributaries in the abdominopelvic cavities are examples of3. Which vessel wall layer
forms a sheath of connective tissue and has collagen fibers that may intertwine
with those of adjacent tissues?4. Which layer is thicker in a
medium-sized artery versus a medium-sized vein?5. Which vessels have valves
t..