Fah
November 15, 2011
Science
The Key to our Systems are…
If you break a big object into smaller pieces, what will you earn
from it? You will get more surface area. The bigger the surface area,
the better. Increasing Surface Area is the key to most of the systems
such as the Circulatory System, Digestive System, Integumentary
System, and the Lymphatic system.
The capillaries in the tissues increase the
surface area. Capillaries are small blood
vessels. They increase surface area by
branching and getting smaller and smaller until
it is as small as a red blood cell. The more
surface area you have, the more exchange.
The Digestive System also has some
parts that use the Surface Area method. The teeth system uses the
surface area method. The incisors are used for cutting. The canines
are used for tearing. The Molars are used for
grinding. The villi are found in the small
intestines. It is used to slow the passage of
the food. The villi increase surface area. They
are shaped like fingers and the blood inside the villi absorbs the
nutrients.
The Circulatory System has the lungs that
want to increase surface area. The Alveoli is the
small air bags in our lungs. The Alveoli provides
surface area for the gas exchange.
The Integumentary System’s goal is to
increase surface area. The skin is the body’s biggest
organ. It helps you keep your body the right
temperature. The outside skin is dead but it is still
good for you because it protects you. The Dermal
Papillae increases surface area for oxygen exchange
between the epidermis and dermis.
To conclude about surface area, I
have talked about the Digestive System,
Integumentary System, about capillaries,
and the Circulatory System. All of the
systems have to do with Surface Area. So,
we have concluded that Surface Area is the
key to many systems in our body.
Capillaries: http://kids.britannica.com/elementary/art-88593/Blood-flows-fromthe-heart-through-arteries-and-into-capillaries
Villi: http://www.tutorvista.com/content/science/science-ii/nutrition/alimentarycanal.php
Alveoli: http://genericlook.com/anatomy/Alveoli/
Skin http://www.umm.edu/dermatology-info/anatomy.htm