terms
sinoatrial node
the real work of the heart contractions is done by what layers?
myocardium
which type of blood vessel contains blood at high force?
arteries
a single hemoglobin molecule can carry ____ oxygen red blood cells carry ____.
4,millions of
the process of hemostasis is completed by which type of cells?
platelets
dropping blood oxygen
negative feedback loop
the human cardiovascular system has 2 loops
systemic loop
blood passes from the legs into the ____ vena cava and into the _____.
inferior, right atrium
because oxygen is nonpolar...
it must be carried by hemoglobin
hematopoiesis begins with a monocyte
true or false?
false
what is known as the relaxation
diastole
What is the pericardium around the heart responsible for?
reducing friction around the heart
the major blood vessel that carries oxygenated blood away from the heart
aorta
ejection phase of the heart
right ventricle and left ventricle
the hormone that stimulates platelet formation is?
thrombopoietin
what does the septum do
divides
what is the functions of the cardiovascular system?
transports oxygen, helps regulate body temp, protects the body, and maintenance of homeostasis
transportation, regulation, protection, maintaining homeostasis
a person with type A blood needs blood, what blood can they receive?
A and O
an embolus is a free floating clot while a thrombus is attached.
true or false
true
which of the following is the first step of hemostasis?
the vessel constricts
what prevents backflow of blood
valves
what is the correct formula for calculating
cardiac output= stroke volume x heart rate
an individual with B+ would have what on their erythrocytes
B antigens and RH antigens
after eating a meal your hands and feet are cold, why?
the capillary sphincters restrict blood floe from the true capillaries to the shunt.
arteries and veins