Science Quiz / MCAT cardivascular/respiratory system

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Can you name the MCAT cardivascular/respiratory system

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(white blood cells) don't contain hemoglobin, protect the body from foreign invaders
rest of bodies' lymph is drained by
located in walls seperating the ventricles, action potential travels here from AV node and then spreads to Purkinje fibers
passageway for food and air
acquired immunity involving B cells
skeletal muscle that contracts to create a negative guage pressure in the chest
cartillaginous member that prevents food from entering the trachea during swalllowing
systemic circulation is comprised of blood flowing in what circuit?
first time immune system is exposed to an antigen is known as the
contains greater volume of blood than arteries/arterioles
coagulation starts with
faster acting and more potent response upon reinfecdtion
blood is
generalized protection from most intruding organisms and toxins
(red blood cells), have no nucleus or organells, don't reproduce or undergo mitosis
the pace of the SA node is faster than normal heartbeats but the parasympathetic ________ innvervates the SA node, slowing the contractions
pulmonary circulation is comprised of blood flowing in what circuit
action potential travels from the SA node to the slower
brochioles terminate in grape-like clusters composed of
the lymph system is an _____ system
three types of granula leukocytes
acquired immunity involving T cells
mature in the thymus
contains the most deoxygenated blood
helps b lymphocyte differentiate into plasma cells and memory B cells
which ventricle contracts with the most force
binds to antigen carrying cell and releases peroforin to puncture cell
lymph from the right arm and head enter the blood through the
specialized cardiac muscle cells that pace heart contractions located in the right atrium
protection against specific organisms or toxins
The phenomenon where the binding of one oxygen molecule to the hemoglobin makes it easier for additional oxygen to bind
spread the action potential across gap junctions of cardiac muscle, allow for more unified and stronger contraction
trachea branches into left and right _________ before entering the lungs
remain in body, can be called upon to quickly synthesize antibodies in case of reinfection
cells that mature into macrophages
B lymphocytes mature in the
voice box
windpipe, composed of ringed cartilage
produces many free antibodies

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