Heart
Cavity in which the heart resides
Thoracic Cavity
What is the liquid portion of blood?
plasma
Sites of gas exchange
Capillaries
Where deoxygenated blood enters the heart
right atrium
What protein carries the highest portion of O2 in the blood?
Hemoglobin
Largest artery in the body
Aorta
The name of the artery that branches off into the brachial artery.
Blood vessel that carries blood from the lower body into the right atrium
Inferior vena cava
What is the size of the heart compared to?
The size of your fist
True or False: The heart has its own electrical system that controls its rhythm, allowing it to beat independently from the brain.
True
Give a description of how the heart functions.
The heart has two sides: the right side pumps blood to the lungs, and the left side pumps oxygen-rich blood to the rest of the body.
Arteries that supply blood to the brain
Carotid Arteries
What are the tendons that connect the valves to the cardiac muscle to prevent backflow muscles?
chordae tendinea
Blood vessel carrying oxygenated blood to the left atrium
pulmonary vein
Abnormally increased heart rate
Tachycardia
This circuit oxygenates blood.
Pulmonary Circuit
cardiac muscle cells are striated, have intercalated discs, and are highly ___________.
The friction of the blood and the walls of blood vessels produces this force which hinders blood flow.
Peripheral resistance
Anatomical term for the pacemaker
Sinoatrial node
Artery that runs deep to the patella
Popliteal Artery
Genetic blood disorder that changes the shape of red blood cells into crescent shapes
Sickle Cell Anemia
When you feel your pulse on your wrist, which blood vessel is that?
Radial Artery
These structures direct signals from the AV node to the left and right ventricles.
Left and Right Bundle of His