Transcript Flow of Blood and Vessel Structure and Location

Flow of Blood and
Vessel Structure and
Location
Ashley Meyer, Ashley Baker, King, Quentin Key
Major Veins and Arteries
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Aorta
Left Pulmonary Artery
Right Pulmonary Artery
Pulmonary veins
Superior Vena Cava
Inferior Vena Cava
Coronary Arteries
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
Major Arteries
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Left Coronary Artery – Divides into two branches: the
circumflex artery and the left anterior descending
artery
Circumflex Artery – Supplies blood to the left atrium
and the side and back of the left ventricle
Left Anterior Descending Artery (LAD) – The "LAD", or
left anterior descending artery (or anterior
interventricular branch of the left coronary artery, or
anterior descending branch) is an artery of the heart
that supplies blood to the front and bottom of the left
ventricle and the front of the septum
Right Coronary Artery (RCA) –Supplies blood to the
Right Atrium, right ventricle, and bottom of the
septum
Coronary Veins – takes oxygen-poor or deoxygenated
blood that has already been “used” by muscles of the
Heart and return it to the right atrium
Vena Cava – The superior and inferior vena cava are
collectively called the venae cavae. They are the veins
that return deoxygenated blood from the body into
the heart. They both empty into the right atrium
Aorta – The largest artery in the body, originating from
the left ventricle of the heart and extending down to
the abdomen, where it branches off into two smaller
arteries (the common iliacs). The aorta distributes
oxygenated blood to all parts of the body through the
systemic circulation
Pulmonary Artery – The pulmonary arteries carry
blood from the heart to the lungs. They are the only
arteries (other than umbilical arteries in the fetus) that
Major Veins
• Small Cardiac Vein - An inconstant vessel
that accompanies the right coronary artery
in the coronary sulcus from the right
ventricle and empties into the coronary
sinus or the middle cardiac vein.
• Oblique Vein - A tributary of the coronary
sinus; on the posterior wall of the left
atrium
• Coronary Sinus – A short trunk receiving
most of the cardiac veins, beginning at the
junction of the great cardiac vein and the
oblique vein of the left atrium, running in
the posterior part of the coronary sulcus
and emptying into the right atrium
between the inferior vena cava and the
atrioventricular orifice.
• Great Cardiac Vein – AKA the left coronary
vein. A tributary of the coronary sinus that
begins at the apex of the heart and runs in
the anterior interventricular sulcus.
• Veins from the Left Ventricle –
• Middle Cardiac Vein –
Misc. Vocab
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Atrium – A body cavity or chamber, especially either of the upper chambers of the heart that receives blood from
the veins and forces it into a ventricle. Also called auricle
Coronary – Of or relating to the heart
Apex – The highest point; the vertex
Sulcus – A groove, trench, or furrow; in anatomy, a general term for such a depression, especially one on the brain
surface, separating the Gyri
Gyri – Plural of Gyrus, rounded ridge, as on the surfaces of the cerebral hemispheres
Cerebral – Pertaining to the cerebrum
Cerebrum – The main portion of the brain, occupying the upper part of the cranial cavity; its two hemispheres,
united by the corpus callosum, form the largest part of the central nervous system in humans. The term is
sometimes applied to the postembryonic forebrain and midbrain together or to the entire brain
Atrioventricular – Pertaining to both an atrium and a ventricle of the heart
Ventricle – A small cavity or chamber, as in the brain or heart
Corpus Callosum – The commissural plate of nerve fibers connecting the two cerebral hemispheres except for
most of the temporal lobes. Also called commissure of cerebral hemispheres
Commissural – Relating to a commissure
Commissure – A site of union of corresponding parts; specifically, the sites of junction between adjacent cusps of
the heart valves
Postembryonic – Following the embryonic stage of development
Cranial – Of or relating to the skull or cranium
Cusp – A triangular fold or flap of a heart valve
Aortic – The main trunk of the systemic arteries, carrying blood from the left side of the heart to the arteries of all
limbs and organs except the lungs
Flow of blood through the
heart
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Blood from the body flows:
to the superior and inferior vena cava,
then to the right atrium
through the tricuspid valve
to the right ventricle
through the pulmonic valve
to the pulmonary artery
to the lungs
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The blood picks up oxygen in the lungs, and then flows from the lungs:
to the pulmonary veins
to the left atrium
through the mitral valve
to the left ventricle
through the aortic valve
to the aorta
to the body
Flow of blood through the body
• As the heart beats, it pumps blood through a system of blood
vessels, called the circulatory system. The vessels are elastic
tubes that carry blood to every part of the body.
• The vessels are:
• Arteries
• Capillaries
• Veins
Vein structure and function
• Veins :Thin, elastic muscle layer with semilunar valves that
prevent the blood from flowing in the opposite direction.
• Veins carry deoxygenated blood (with the exception of
pulmonary veins and umbilical vein).
Artery structure and function
• Arteries :Thick, elastic muscle layer that can handle high
pressure of the blood flowing through the arteries.
• Arteries carry oxygenated blood (with the exception of the
pulmonary artery and umbilical artery).
Capillary structure and
function
• Capillaries: Very thin walls made up of endothelial cells, which
allow substances to move through the wall with ease.
• They are the site where oxygen and other nutrients in the
blood are delivered to the tissues of the body
VIDEO!!!!
• http://www.youtube.com/watch?v=SvAVu7E2gA