The blood vessels are the components of the circulatory system that transport blood throughout the human body. These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away from the tissues.

1. STRUCTURE OF
BLOOD VESSELS
Prepared by Atheena Pandian
B I O M E C H A N I C S

2. What is Blood Vessels?
Purpose
Artery
Vein
Capillary
1.
2.
3.
4.
5.
DISCUSSION POINTS
TODAY'S TOPICS
MASTERING THE ART OF SELLING PRESENTATION

3. BLOOD VESSELS
Blood vessels consist of arteries,
arterioles, capillaries, venules,
and veins
Vessel networks deliver blood to
all tissues in a directed and
regulated manner
Arteries and veins are composed
of three tissue layers
It consists of circularly arranged
elastic fibers, connective tissue,
and smooth muscle cells.

4. PURPOSE OF BLOOD VESSELS
The blood vessels are part of the circulatory
system and function to
transport blood throughout the body. The most
important types, arteries and veins,
carry blood away from or towards the heart,
respectively.

5. ARTERY
An artery is a blood vessel that carries blood away from the
heart to other parts of the body. Almost all arteries carry blood
with a lot of oxygen in it.

6. The intima, the inner layer lined by a smooth tissue
called endothelium
The media, a layer of muscle that lets arteries handle
the high pressures from the heart
The adventitia, connective tissue anchoring arteries
to nearby tissues.
Each artery is a muscular tube lined by smooth tissue
and has three layers

8. VEIN
A blood vessel that carries blood that
is low in oxygen content from the
body back to the heart
The deoxygenated form of hemoglobin
(deoxy-hemoglobin) in venous blood
makes it appear dark
Veins are part of the afferent wing of
the circulatory system, which returns
blood to the heart.

9. VEIN TYPES
Deep veins are located within muscle tissue
Superficial veins are closer to the skin's surface
Pulmonary veins transport blood that's been filled
with oxygen by the lungs to the heart
Systemic veins return oxygen-depleted blood
from the rest of the body to the right atrium of
the heart.
There are different types of veins

10. 3 LAYERS OF A
VEIN
an inner layer, or tunica intima
a middle layer, or tunica media;
and
an outer layer, or tunica adventitia.
As in the arteries, the walls
of veins have three layers, or coats
Each coat has a number of sublayers.

11. A capillary is a small blood vessel
from 5 to 10 micrometres (μm) in
diameter, and having a wall one
endothelial cell thick. They are the
smallest blood vessels in the body:
they convey blood between the
arterioles and venules.
CAPILLARY

12. 3 TYPES OF
CAPILLARIES
continuous
fenestrated, and
sinusoidal.
Capillaries connect arterioles and
venules and enable the exchange of
water, oxygen, carbon dioxide, and many
other nutrients and waste substances
between blood and surrounding tissues.
There are three main types of capillaries

13. MASTERING THE ART OF SELLING PRESENTATION

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