heart 1
Arteries carry blood away or to the heart?
Away
Veins carry blood away or to the heart?
To the heart
Is the heart a muscle?
True or False
True
What system does the circulatory system work most closely with?
Respiratory System
What is blood called that does not have much or any oxygen in it?
deoxygenated blood
How many chambers are in the heart?
4
What is the main artery of the heart?
Aorta
What is the large vein carrying deoxygenated blood back to the heart?
Vena Cava
Where does pulmonary circulation take place?
the alveoli (air sacs)
The hearts job is to?
Pump blood
What vein returns blood from the upper body?
Superior Vena Cava
What vein retruns blood from the lower body?
Inferior Vena Cava
The heart is about the size of what?
A fist.
The heart organ is also known (function nickname) as what?
The pump
What organ does the blood pick up oxygen and nutrients?
The lungs
What system is the heart part of?
Cardiovascular system
What are the four chambers of the heart?
Left ventricle, Right ventricle, left atrium, right atrium
What is located between each chamber of the heart?
Valves
What makes the heart work harder?
High blood pressure
What part of the circulatory system is where the o2 is delivered to the cells along with other nutrients?
Capillaries
Very tiny blood vessels connecting the arteries and veins?
Capillaries
Hardening of the arteries due to plaque?
Atherosclerosis
What is abnormal heart rate called?
Arrhythmia
What causes the backward flow of blood in the heart?
Prolapsed valves
What is the blockage of blood flow in the heart?
Myocardial infarction (Heart attack)