biob34 mod 1

animal physiology

study of how animals func

aristotle

emphasized relation b/t struc and func; classified organism by blood/no blood; speculated on body func

erasistratus

considered father of physiology; applied physical laws to study human func; suggested heart is pump; named and identified func of cardiac tricuspid valve

galen

used systematic experiments to speculate func

ibn al nafis

correctly described pulmonary and coronary circulation, heart anatomy; confirmed heart is a pump

william harvey

described circulatory system and blood properties; showed heart contraction powered blood movement; speculated capillary existance

claude bernard

suggested blind experiment for objectivity, discovered hemoglobin carries oxygen, nerve regulate bloodflow; “milieu interieur”

milieu interieur

“stability of internal environment despite variable external environment is necessary for free and indep life”

walter cannon

coined “fight or flight response” and “homeostasis”; dry mouth hypothesis

august krogh principle

“for every biological problem there is an animal on which it can most conveniently be studied”

acclimation

changing phenotype in response to controlled variable

acclimatization

changing phenotype in response to natural variation

sexual reproduction

enable greater genetic variation over generations; makes ind better suited if environment changes

asexual reproduction

makes many clones of a parent