Transcript Human Body Project

Human Body
Project
Cardiovascular System
By
Matthew Cruz
Michael Kim
Gabriel Ochoa
Structure
The cardiovascular system
is made up of the:
•Heart
•Blood Vessels
•Blood
Structure
In the cardiovascular system, the heart
is located in the center of the chest
area, the blood vessels span through
the body, and blood is constantly
pumped through the blood vessels.
•The
heart is about the size of a human
fist and has multiple chambers.
•There are three types of blood vessels:
Arteries, Veins, and Capillaries.
•The blood is around 7% of a human’s
total weight.
Functions
The main role of the cardiovascular
system is to send oxygen to and
remove the waste from all the
tissues in the body. Since the system
is consisted of mostly blood, the
blood is most responsible for moving
the oxygen, nutrients, and metabolic
waste, this is done by the use of
blood vessels.
Functions
•The
The Heart
heart contains four chambers:
the right atrium, the right ventricle,
the left atrium, and the left ventricle.
•The heart’s main function is to
pump oxygenized blood through the
body and blood low on oxygen to
the lungs.
•The pacemaker in the upper right
atrium, called the sinoatrial node,
uses electrical signals trigger heart
contractions that will sustain the flow
of blood.
Functions
Blood Vessels
•The heart pumps the blood through
these, which span through the entire
body.
•Blood with oxygen goes through the
capillaries and arteries, but blood
without oxygen goes through the
veins.
Blood
•The
blood
carries
oxygen, nutrients, and
metabolic
waste
throughout
the
entire
body.
With oxygen
Without oxygen
Common Disease
Stroke
•A stroke occurs
when blood flow to the
brain is disrupted (ischemic stroke) or a
blood vessel in the brain bursts
(hemorrhagic stroke).
•Strokes can affect consciousness,
sensations, and movement for a
minimum of 24 hours.
•A stroke is usually treated by
continuously
monitoring
any
complications.
•Restoring blood flow to the area or
stopping the bleeding are ways to
attempt to cure a stroke.
Facts
•Average weight of the heart in males and females is 300 - 350 g and 250
- 300 g respectively. Size of the heart is equal to that of the fist of human
hand.
•The
human heart is covered by a layer called pericardium, which is
actually a double-walled sac.
•The
heart is composed of three layers: the endocardium (innermost
layer), myocardium (middle layer), and the visceral layer (uppermost
layer)
•The
heart, which is an important component of the cardiovascular
system, beats 72 times in a single minute, and thus produces
approximately 2.5 billion beats in the lifetime of a person.
•The
total length of all the blood vessels in the human body is
approximately 60,000 miles. This length of the blood vessels is equivalent
to twice the circumference of the earth.
Facts
•Out of the total volume of blood plasma, 92% is water and only
8% is that of the plasma proteins.
•Hemoglobin, a protein with iron as its main component is the
forms the RBCs and enables them in the transportation of
oxygen.
•Blood is actually a specialized form of connective tissues and is
produced inside the bones.
•Blood is composed of blood cells and these cells are suspended
in a liquid known as blood plasma
•There
are 3 types of blood vessels: the arteries, veins and
capillaries. Arteries perform the work of taking blood away from
the heart while the veins transport it towards the heart.
Capillaries are responsible for the exchange of chemicals and
water that takes place between tissues and blood.
Bibliography
•
"Cardiovascular System." - Information from Bupa on Cardiovascular
System. Bupa's Health Information Team, Feb. 2011. Web. 28 Apr.
2012.
<http://www.bupa.co.uk/individuals/healthinformation/directory/c/the-cardiovascular-system>.
•"Cardiovascular System Information." Body Guide - Powered by
Adam.
Walgreens,
2001.
Web.
28
Apr.
2012.
<http://www.walgreens.com/adamHtml/bodyguides/reftext/html/cardio
_sys_fin.html>.
•Nakate, Shashank. "Cardiovascular System Facts." Buzzle. Web. 27
Apr. 2012. <http://www.buzzle.com/articles/cardiovascular-systemfacts.html>.
•Schoenstadt, Arthur. "Stroke." Stroke. EMedTV. Web. 28 Apr. 2012.
<http://stroke.emedtv.com/stroke/stroke.html>.
•Johnson, George B., and Peter H. Raven. Holt Biology. Orlando:
Holt, Rinehart and Winston, 2006. Print.