Difficult
Blood passes from the legs into the __________ vena cava and then into the ___________.
Inferior
right atrium
The process of hemostasis is completed by which type of cells?
Platelets
A person has Type B blood and needs a blood transfusion. Which blood types are safe to provide?
B and O
Name three functions of the cardiovascular system.
Preventing Infection
Regulating body temperature
Transporting oxygen, hormones and wastes
What is the formula for calculating cardiac output?
Cardiac output = stroke volume x heart rate
An erythrocyte is also known as a ____________.
Red blood cell
Which major blood vessel carries oxygenated blood away from the heart?
Aorta
How many hemoglobin proteins can each red blood cell carry?
Millions
What is the sequence for the intrinsic conduction system?
SA node--AV node--AV bundles--bundle branches--Purkinje fibers
What is the first step of hemostasis?
The blood vessels contract
The human cardiovascular system has two loops. Which loop takes blood from the heart to the lungs and back?
Pulmonary loop
Names the formed elements in blood.
Erythrocytes
Leukocytes
Thrombocytes
Which type of blood vessel contains blood at the highest pressure?
Arteries
Name three things the pericardium is responsible for.
Provide protection
Anchors the heart in place
Lubricates to reduce friction
Four
What hormone stimulates platelet formation?
Thrombopoietin
Which layer of the heart is responsible for contractions?
Myocardium
What is the difference in a thrombus and an embolus?
A thrombus is attached while an embolus is free-floating.
Which component of blood makes up the smallest percentage by volume?
Leukocytes and Thrombocytes
What is another name for the sinoatrial node?
Cardiac pacemaker
What blood type would a person be if they have B antigens and Rh antigens on their erythrocytes?
B+
What term is used for the process of blood cell formation?
Hematopoiesis
What is plasma mostly made of?
Water
If a person has a blood genotype of IAi, what would their phenotype be?
Why must oxygen be carried by hemoglobin?
Because it is nonpolar, it cannot diffuse into the blood.