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Lesson 4.3 Blood Flow – Key Terms
Aorta
Arteriole
Artery
Arteriosclerosis
Atherosclerosis
Atrium
Blood pressure
Capillary
Cardiac muscle
Cardiac output
Circulation
Coronary Artery
Heart rate
Peripheral artery
disease
Peripheral
vascular disease
Pulmonary
Circulation
The large arterial trunk that carries blood from the heart to be
distributed by branch arteries through the body.
Any of the small terminal twigs of an artery that ends in
capillaries
Any of the tubular branching muscular- and elastic-walled
vessels that carry blood from the heart through the body.
A chronic disease characterized by abnormal thickening and
hardening of the arterial walls with resulting loss of elasticity
A cardiovascular disease in which growths called plaques
develop on the inner walls of the arteries, narrowing their
inner diameters.
A chamber of the heart that receives blood from the veins
and forces it into a ventricle or ventricles.
The hydrostatic force that blood exerts against the wall of a
vessel.
Any of the smallest blood vessels connecting arterioles with
venules and forming networks throughout the body.
Striated muscle fibers (cells) that form the wall of the heart;
stimulated by the intrinsic conduction system and autonomic
motor neurons
The volume of blood ejected from the left side of the heart in
one minute.
The movement of blood through the vessels of the body that
is induced by the pumping action of the heart and serves to
distribute nutrients and oxygen to and remove waste
products from all parts of the body.
Either of two arteries that arise one from the left and one
from the right side of the aorta immediately above the
semilunar valves and supply the tissues of the heart itself
A measure of cardiac activity usually expressed as number
of beats per minute
A form of peripheral vascular disease in which there is partial
or total blockage of an artery, usually one leading to a leg or
arm.
Vascular disease affecting blood vessels outside of the heart
and especially those vessels supplying the extremities.
The passage of venous blood from the right atrium of the
heart through the right ventricle and pulmonary arteries to the
lungs where it is oxygenated and its return via the pulmonary
veins to enter the left atrium and participate in the systemic
circulation
© 2014 Project Lead The Way, Inc.
Human Body Systems Lesson 4.3 Blood Flow – Key Terms – Page 1
Pulse
Smooth muscle
Stroke volume
Systemic
Circulation
Valve
Varicose vein
Vein
Ventricle
Venule
A regularly recurrent wave of distension in arteries that
results from the progress through an artery of blood injected
into the arterial system at each contraction of the ventricles
of the heart.
A tissue specialized for contraction, composed of smooth
muscle fibers (cells), located in the walls of hollow internal
organs, and innervated by the autonomic motor neurons
The volume of blood pumped from a ventricle of the heart in
one beat
The passage of arterial blood from the left atrium of the heart
through the left ventricle, the systemic arteries, and the
capillaries to the organs and tissues that receive much of its
oxygen in exchange for carbon dioxide and the return of the
carbon-dioxide carrying blood via the systemic veins to enter
the right atrium of the heart and to participate in the
pulmonary circulation
A bodily structure (as the mitral valve) that closes temporarily
a passage or orifice or permits movement of fluid in one
direction only.
An abnormal swelling of a superficial vein of the legs.
Any of the tubular branching vessels that carry blood from
the capillaries toward the heart and have thinner walls than
the arteries and often valves at intervals to prevent reflux of
the blood which flows in a steady stream and is in most
cases dark-colored due to the presence of reduced
hemoglobin.
A chamber of the heart which receives blood from a
corresponding atrium and from which blood is forced into the
arteries.
Any of the minute veins connecting the capillaries with the
larger systemic veins
© 2014 Project Lead The Way, Inc.
Human Body Systems Lesson 4.3 Blood Flow – Key Terms – Page 2