9.1 Circulatory Systems

Define circulatory system.

system of blood vessels w/ a pump & valves ensuring 1 way flow of blood

Which circulatory system is found in fish?

single

Which circulatory system is found in mammals?

double

Single circulatory system
> b__ flow thru the heart __ for __ complete circuit

blood, once, 1

Double circulatory system
> b__ flow thru the heart __ for __ complete circuit

blood, twice, 1

Advantages of double circulation
> higher p__ (in systemic circuit) = higher speed of b__ c__
> o__ & d__ blood separated by s__
> allows more t__ for gas e__

pressure, blood circulation, oxy, deoxy, septum, time, exchange

Pulmonary circulation
> system of blood v__ forming a closed c__ between the h__ & l__
> __(more/less) pressure as blood doesn’t go too far; arteries __ muscular

vessels, circuit, heart, lungs, less, less

Systemic circulation
> system of blood v__ forming a closed c__ between the h__ & all other body t__
> __(more/less) pressure as it forces more vol of blood further thru the body; arteries __ muscular

vessels, circuit, heart, tissues, higher, more, more