bio (1030) - MaB: response pathways

not much talk during this lesson coz we were talking about assessments etc for a lot of it.

we just touched on response pathways, which we've been basically tlaking about so far anyway.

the receptors send pulse signals through nerves and up the spinal cord and to the brain. the brain returns a signal to the corresponding muscles to do an action (eg secrete sweat if its too hot)

also, i asked a rnadom question of interest.. coz our body temp likes being 37, but on a day of 37deg, we find it too hot already.

apparently theres no optimum temperature for the outside of our bodies, but it still likes to regulate temperature.. to adapt.

and the reason why its our arms and legs and face that goes red when it gets hot.. its because blodo vessels are close to the outside in these locations, tahts why they thicken when its hot.. its easiest for the heat to get out through here