BIO325H5 Lecture Notes - Lecture 5: Pump, Aeroelasticity, Coelom
Document Summary
Live birds kept in an aviary; video and audio recorded: chased to instigate escape flights and making of wing sounds; in an experiment they captured birds and applied hairspray. Nature makes a great diversity of pumps, including ciliated surfaces [amphioxus], valved hearts [vertebrates], peristaltic tubes [insect heart] : the tracheal sacs of insects pump air with the help of the abdominal tagma"s telescoping. The same devices that animals use for locomotion may also be used as pumps, e. g. , honey bees fan their wings to cool and ventilate their hives. Squids and scallops as jetting animals also satisfy the pump definition. An echinoderm ampulla qualifies as a pump of coelomic fluid into a tube foot: there are two basic pump types: positive displacement (also called fluid static) and. Fish hearts pump blood to their gills and water over their gills with displacement pumps: two basic kinds of pump: 1 )fan or impeller [fluid dynamic] and 2) force-suction.
