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This talk introduces
major blood vessels,
using it as a basis for
further exploration of
the structure and function
of the body's
circulatory network,
focusing on the key differences
between arteries and veins,
their organization, and how they
enable systemic and
pulmonary circulation.
We will look at major
arteries and veins,
their specific roles in
supplying and returning blood,
and the physiological mechanisms
regulating blood
flow and pressure.
Additionally, we'll discuss
the clinical significance
of blood vessels in organ
function and disease,
emphasizing why
understanding vessel anatomy
is vital for diagnosis
and treatment.
Let us begin by examining
the essential framework of
the body's circulatory network.
Blood vessels form
an intricate system
for transporting blood,
nutrients, gases, and signaling
molecules throughout the body.
They are mainly grouped
into arteries and veins.
Arteries carry blood away from
the heart while
veins return blood.
This organization underpins
systemic and pulmonary
circulation,
enabling oxygen
delivery, waste removal,
immune surveillance, and
temperature regulation.
Let's explore the major arteries
and how they distribute blood.
The aorta arises from
the left ventricle,
arching and descending
to supply branches,
like the carotid arteries
for the head and
neck and subclavian arteries
for the upper limbs.
In the abdomen, it divides into
common iliac arteries
for the lower limbs.
Renal, celiac,
mesenteric, and femoral arteries
supply specific organs,
