Conduction & Regulation
This node, located near the opening of the SVC is often called the “pacemaker” of the heart
What is the SA node?
Vessels containing oxygenated blood only enter and leave this side of the heart
What is the Left?
The epicardium, the outermost layer of the heart, is also known as this serous membrane
What is the Visceral Pericardium?
The inferior vena cava, superior vena cava, and coronary sinus empty into this heart chamber
What is the Right Atrium?
Stoke volume multiplied by heart rate equals this
What is Cardiac Output?
An increase in epinephrine causes this change in heart rate
What is an increase?
The ulnar & radial veins empty into this vein
What is the Brachial?
This innermost layer of the heart is smooth and continuous with the lining of the aorta and pulmonary trunk
What is the Endocardium?
The pulmonary trunk splits into these two vessels that take deoxygenated blood to the lungs
What are the Pulmonary Arteries?
Gases leave & enter the capillary network by means of this passive mechanism of transport
What is Diffusion?
These special sensory receptors detect changes in blood pressure
What are Baroreceptors?
This artery supplies blood to the diaphragm
What is the Phrenic?
These connections between blood vessels provide an alternate path for blood blow
What are Anastomoses?
The portion of the heart that rests on the diaphragm
What is the Apex?
Water and dissolved nutrients enter tissues by this mechanism of transport
What is Filtration?
The SA node, located in the upper right atrium, is responsible for this
What is the Rate & Rhythm of the heart?
This is the first major artery that branches from the aortic arch
What is the Brachiocephalic?
Capillaries are made of only a single layer of this type of epithelium
What is Simple Squamous?
These are the first two branches off the aorta immediately after the aortic valve
What are the Coronary Arteries?
Cardiac veins, which carry deoxygenated blood, empty into this vein
What is the Coronary Sinus?
The AV bundle sends a message to these nerve fibers to ensure complete contraction of the ventricles
What are the Purkinje Fibers?
This artery branches off the subclavian artery & sends blood to the posterior brain
What is the Vertebral?
This type of connective tissue is found in the middle layer of the arteries and veins
What is Elastic?
The closure of these valves during ventricular systole make the first heart sound (S1)
What are the Atrioventricular (AV) (Cuspid) Valves?
The atrioventricular (AV) valves are kept from inverting into the atria by these fibrous strings
What are the Chordae Tendineae?