Ch. 42 Circulation and gas Exchange Slide 2 Open Circulatory
System Insects (other arthropods) and molluscs No distinction
between blood and interstitial fluid. Hemolymph body fluid Body
movements squeeze sinuses which moves hemolymph Slide 3 Closed
Circulatory System Earthworms, squids, all vertebrates Blood in
vessels separate from interstitial fluid Heart pumps blood into
vessels. Slide 4 Blood Vessels Arteries Blood Away from the heart
Veins Blood to the heart Capillaries tiny vessels. Blood supply can
vary depending on the site of capillaries. Ex. Digestive system
capillaries will fill with blood after a meal. Slide 5 Components
of Blood Plasma, RBC (transport O 2 ), WBC (immune) and platelets.
Blood Clots caused by fibrin protein. Self sealing material after a
cut or scrape.
