BIO 2110 Lecture Notes - Lecture 3: Necturus, Thermoreceptor, Ideal Gas Law

• School: University of Ottawa
• Department: Biology
• Course: BIO 2110
• Professor: Jan Alexander Mennigan

Document Summary

Integrator to compare the detect the change with a set point. Sometimes amplifying to do something like activating an ion channel that can change membrane potential. Stimuli inside body eg blood pressure and oxygen. Even in just a small piece of skin, there are lots of receptors. All receptors transduce incoming stimuli into changes in membrane potential: re(cid:272)eptor protei(cid:374) dete(cid:272)ts sti(cid:373)ulus, ope(cid:374)i(cid:374)g or (cid:272)losi(cid:374)g of io(cid:374) (cid:272)ha(cid:374)(cid:374)el, cha(cid:374)ge i(cid:374) (cid:373)e(cid:373)(cid:271)ra(cid:374)e pote(cid:374)tial, sig(cid:374)al se(cid:374)t to i(cid:374)tegrati(cid:374)g (cid:272)e(cid:374)ter (cid:894)(cid:272)e(cid:374)tral (cid:374)ervous syste(cid:373)(cid:895) Types of receptors: che(cid:373)ore(cid:272)eptors, (cid:373)e(cid:272)ha(cid:374)ore(cid:272)eptors, photore(cid:272)eptors, i(cid:374)frared re(cid:272)eptors (cid:894)so(cid:373)e s(cid:374)akes(cid:895), electroreceptors, magnetoreceptors, thermoreceptors, hygroreceptors (insects to avoid desiccation), proprioceptors (orient in space, baroreceptors. Need o as electron receptor in mitochondria for atp making. Bulk flow is moving a medium like air or water (ventilation) Circulation is transport of gases in the circulatory system. Pressure exerted by a gas is related to the number of moles of the gas and the volume of the chamber.