Transcript Lecture
Hearts, Circulation, & Blood Lungs Body Mammal Hagfish Body A A Body Lungs V V Mammal Gills Fish A V Atrium Sinus venosus Ventricle Conus Arteriosus Shark Heart Conus Arteriosus Bulbus Atrium Sinus venosus Ventricle Bony Fish Heart Conus Arteriosus Bulbus Atrium Sinus venosus Ventricle Bony Fish Heart Blood in from gills Blood to Head Circulus Cephalicus Blood in from gills To Aorta Brain Head Kidney Gills Heart Trunk Kidney Swim Bladder Liver Spleen Intestine Muscle Intestine Intestine Muscle Intestine Gills Muscles Head Tail Muscles Kidney Heart Liver INT The lymphatic system collects the fluid that leaks from blood vessels and returns it to the blood Wucheria bancrofti Elephantiasis Mammal Lymphatics Blind-ended ducts collect lymph and return it to the circulatory system. Arteriole Capillary Venule Lymph Arteriole Capillary Venule Fish Lymphatics Ducts that are too narrow for blood cells to pass through connect arterioles and veins. No lymph nodes. Fish Blood 5 Billion RBC per tsp 50 million WBC Plasma Blood Cell Functions • Red blood cells – Aka erythrocytes – Carry oxygen • White blood cells – Aka leukocytes – Immunity and repair • Thrombocytes (not platelets) – Clotting Macrophage Nucleus Bacteria in Macrophage Head Kidney Trunk Kidney Blood • Food and Energy – – – – – Carbohydrates Proteins Lipid Vitamins Minerals • Cell waste • Dissolved gases • Osmoregulation – Albumin (protein) – Salts (Na, Cl, K, Mg…) • Immunity – – – – Globulins Antibodies Enzymes Iron binding proteins • Hormones – Reproduction – Regulation • Clotting Proteins • Erythrocytes • White blood cells 1. Chambers in shark/bony fish hearts 2. Circulus cephalicus 3. Blood flow pattern in cartoon fish 4. Lymphatic system function 5. Where does blood come from ?