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Organs of the Human Body

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by

Kristin Bagley

on 3 December 2012

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Transcript of Organs of the Human Body

Heart The heart pumps blood through the body.
It is the hardest working muscle in the body.
Each beat of the pulse is equal to one heartbeat. Lungs The lungs bring fresh oxygen
to the blood and removes carbon
dioxide and other waste gases
from the blood Muscles Muscles create movement and help you to keep good posture. There are three types of muscles, skeletal muscles, smooth muscles, and cardiac or heart muscles. Teeth and Tongue Breaks down food into
smaller pieces that
you can swallow Esophagus Or food pipe – A tube which
carries your food into your
stomach using a wave-like
motion caused by smooth
muscles Stomach A J-shaped bag which works
like a mixer, using smooth
muscles to crush the food
into smaller and smaller
pieces, which are then
broken down further
by acid Small intestine A very long, narrow tube which
breaks down the food mixture even
more; digestion is completed here
and then all the nutrients are absorbed
into the blood Liver Cleans the blood coming from the digestive organs and changes food into forms that can be stored or used by the rest of the body Pancreas Assists with digestion by controlling the
amount of sugar in your blood and
releases chemicals that break down food
in your small intestine Large intestine A fatter, shorter tube than the small
intestine; it absorbs water back into
the blood; all that is left are the waste
materials, which leave the body as feces
without ever entering the blood Brain Organs Organs are made up of different tissues. When a group of tissues are attached to one another to perform a function, they are called an organ. Every organ has a different function. Let’s begin exploring some organs found in our body and their functions. The skeleton The skeleton is an internal organ that
includes the 206 bones. Because you
have a skeleton, you have a definite
shape. But your skeleton does a lot
more for you than give your body
shape and structure. Skull Your head is formed by the
bones called the skull. What
organ does the skull protect?

The Brain! Ribs Protection is another job of the skeleton. Put
your hands gently on your chest. Do you feel
the bones? These bones are called ribs. The ribs form a cage around some of your internal
organs to protect these organs. Sensory Organs Urinary Organs When your body is
finished using the food
that was absorbed by
your small intestines, the
blood carries what is left
over to the kidneys Bladder The bladder holds urine and
when it gets full, you have
to urinate. Kidney The kidneys are organs found
in your back near the bottom
of your rib cage. The kidneys
act like a filter to take harmful
things out of your blood. You can think of the brain as the “control center” for the whole body. A network of nerves carries information back and forth between the brain and other organs. Your heart could not beat without it, and your legs could not move without it. The brain:
•is about the size of your two fists together, fingers facing each other
•is delicate and soft, so it is protected by the skull
•controls and coordinates everything in your body
•sends messages to the rest of the body very quickly
•is where you think Eyes allow you to see light waves Ears allow you to hear sound waves Nose allows you to smell Tongue allows you to taste; the sense of taste does not work as well without the sense of smell Skin Allows you to feel touch, pressure, hot, cold, and pain; also makes sure everything that belongs in your body (like water) stays in, and everything that belongs outside of your body (like germs) stays out Reproductive Organs Males and females have different reproductive organs, and it takes all of the organs working together to reproduce. Testes Ovaries The testes are a pair of organs found in the male body. Testes are in charge of making sperm (male reproductive cells), and do so through out a male’s life. The testes are outside of the body because sperm cannot form if their environment is too hot. The ovaries are a pair of organs found in the female body, and each ovary is the size of a walnut. Inside the ovaries are eggs (female reproductive cells). A girl is born with all of the eggs that she will ever have in her life. We have now explored some organs
found in our body and their functions.

Created by Ms. Bagley's 5th Grade Class
Dr. Phillips Elementary School
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