Circulatory System Flashcards
(6 cards)
What are the 2 forms of closed circulatory systems?
Single
Double
What does a single closed circulatory system consist of?
Heart with two chambers meaning the blood passes through the heart once for every circuit of the body
What does a double closed circulatory system consist of?
Heart with four chambers and blood passes through the heart twice for every circuit of the body
Why is a double closed circulatory system more efficient?
Increases pressure and therefore speed of delivery of oxygenated blood to tissues
What is the circulatory system made up of?
Heart which pumps blood through blood vessels to reach different parts of the body
What does blood transport?
Gases, products of digestion, metabolic wastes and hormones around the body