#1
Cardiovascular system is composed of these 2 things
This is the number of chambers in the heart
What is 4
The two types of blood vessels
What are veins and arteries
These carry blood away from the heart
What are arteries
These carry blood toward the heart
This is the biggest artery of the heart
What is the aorta
Names of the 4 chambers of the heart
Gas exchange happens here
What are capillaries
The pressure of blood against the artery walls is called this
What is blood pressure
What are the superior and inferior vena cava
Veins have valves to prevent this
What is backflow
Maximum pressure when ventricles are pumping
What is systolic
Upper arm region
What is the brachium
What are arteries
Minimum pressure when the atria are pumping
What is diastolic
This carries CO2 to the lungs where we breathe it out
What is blood
Air sacs in the lungs
What are alveoli
The most deep layer of the heart
What is the endocardium
Middle, and thickest layer of the heart
What is the myocardium
Outermost layer of the heart
What is the epicardium
Blood enters the heart in these two places
What are the left and right atria
This circulation conveys blood to the lungs and back to the left side of the heart
What is pulmonary circulation
This conveys blood to most body tissues and back to the right side of the heart
What is systemic circulation
Lungs get smaller and eventually become these
Give me 3 locations of capillaries
What are the lungs, head, organs, extremities (feet and hands)