Effect of temperature and activity on vascular pressure, conductance and cardiac power output. Effect of temperature and activity on vascular pressure, conductance and cardiac power output. (A) Pda, dorsal aortic pressure; (B) Pva, ventral aortic pressure; (C) Pcv, central venous pressure; (D) Gsys, systemic conductance; (E) Gbranch, branchial conductance; (F) CPO, cardiac power output. N=16 for Pda (except 8°C activity, N=14), N=7 for Pva, N=5 for Pcv (except 8°C activity, n=4), N=13 for Gsys (except 8°C activity, N=11), N=6 for Gbranch and CPO. P-values according to a two-way ANOVA. Values are means±s.e.m. William Joyce et al. J Exp Biol 2018;221:jeb183160 © 2018. Published by The Company of Biologists Ltd