Cardiovascular Anatomy
Blood flows in the heart from the vena cava to the...
right atrium
The pacemaker of the heart
SA node
A person's blood type is determined by the
specific antigens on the surface
What is the first phase of blood clotting?
Vascular phase (blood vessels spasms to prevent blood loss)
From the right atrium, blood next flows into which chamber?
right ventricle
Does the AV node action potential beat faster or slower than the SA node?
slower
What special protein allows oxygen to bind to red blood cells?
hemoglobin
The term for blood flow rate resistance caused by longer and smaller diameter vessels
vascular resistance
After the right ventricle, blood flows next into which vessel?
the pulmonary trunk (to the pulmonary artery)
The term for a rapid heart rate over 100 BPM
tachycardia (bradycardia is slow <60 bpm)
This plasma protein stays in the blood to maintain osmotic pressure
albumin
The term for a blood clot breaking down
This vessel carries deoxygenated blood from the heart to the lungs
Pulmonary artery
The QRS complex on an EKG represents what
the depolarization of the ventricles
This plasma protein is involved in blood clotting
fibrinogen
How does viscosity affect flow rate?
high viscosity means there is more molecules and materials in the liquid. So high viscosity= slower flow and low viscosity= faster flow
This is the major blood vessels that takes blood from the heart to the rest of the body
aorta
The EKG wave that represents depolarization of the atria
P wave
What are the components of whole blood?
Red blood cells, white blood cells, platelets, and plasma
Blood pressure is measured by pressure where?
In the arteries