Human Body Unit
Name ____________________________
A Body of Knowledge
Use the list on the back of the paper to show how much you already know about
the human body. Draw in the organs on the body and label. Complete the chart
on the back of the page.
Human Body Unit
Name ____________________________
Analyze and Conclude:
1. In the chart below, describe your understanding of the function of each of these organs.
Organ
Function
Brain
Heart
Lungs
Stomach
Intestines
Liver
Pancreas
Gall Bladder
Reflection
1. Describe the most important organ in your body. Why is this particular organ most important?
_____________________________________________________________________________
_____________________________________________________________________________
2. Describe the most important body system. Why is this particular body system most important?
_____________________________________________________________________________
_____________________________________________________________________________
Human Body Unit
Name ____________________________
Human Body Unit
Name ____________________________
Human Body Unit
Name ____________________________
Human Body Unit
Name ____________________________
Levels of Organization (from the simplest
level to the most complex)
 ____________________ - The basic units of _____________________ and
_______________________ within all living things. Though all cells perform the
processes that keep the organism alive, they also have _______________________
_____________________ as well. Examples:
o Animal cell: ____________________________________________
o Plant cell: ______________________________________________
 __________________ - A group of specialized cells that ________________________
___________________________________________. Examples:
Animal
Plant
Human Body Unit
Name ____________________________
 ____________________ - A group of ________________________________________
that work together to ___________________________________________________.
The task is generally more complex than that of the tissue. For example:
o Animal _______________________________________________________
o Plant ________________________________________________________
 _______________________ - A group of _____________________________ that work
together to ___________________________________________________. Each organ
system has its own function but _____________________________________________.
Examples: ______________________________________________________________
Human Body Unit
Name ____________________________
Human Body Unit
Name ____________________________
Circulatory System
 The main function of the circulatory system is to _______________________________
________________________________________ so that ____________________
___________________________________are transported to and from the __________.
 The main organs of the circulatory system are: _________________________________.
o Heart - ____________________________________________________________
__________________________________________________________________
Human Body Unit
Name ____________________________
o Blood Vessels - ___________________________________________________
________________________________________________________________
 Most _________________ carry blood that has ____________________
___________________________ to all the parts of the body.
 Most _________________ carry _________________________________
(for example carbon dioxide) from all the parts of the body back to the
heart.
 _________________________ are very small vessels where the exchange
of ____________________________ from the blood into the cells and
_________________________________ enter the blood from the cells.
o Blood is composed of ______________________________________________
_______________________________________________________. These
components have different functions.
Human Body Unit
Name ____________________________
You know what blood is — it's that red stuff that oozes out if you get a paper cut. The average person has about 1 to
1½ gallons (4-6 liters) of it. But what is blood, really, and where does it come from?
How Does the Body Make Blood?
It's not made in a kitchen, but blood has ingredients, just like a recipe. To make blood, your body needs to mix:

red blood cells, which carry oxygen throughout the body

white blood cells, which fight infections

platelets, which are cells that help you stop bleeding if you get a cut

plasma, a yellowish liquid that carries nutrients, hormones, and proteins throughout the body
Your body doesn't go to the store to buy those ingredients. It makes them. Bone marrow — that goopy stuff inside
your bones — makes the red blood cells, the white blood cells, and the platelets. Plasma is mostly water, which is
absorbed from the intestines from what you drink and eat, with the liver supplying important proteins.
Put all these ingredients together and you have blood — an essential part of the circulatory system. Thanks to your
heart (which pumps blood) and your blood vessels (which carry it), blood travels throughout your body from your
head to your toes.
Plasma
Liquid part of the blood; carries
the materials (oxygen, nutrients,
waste) through the body
Human Body Unit
Name ____________________________
Respiratory System
 The main function of the respiratory system is to _______________________________
________________________________________________________________________
o When air is inhaled, the lungs _________________________________________.
o _________________________________ is exhaled back into the environment.
Label the Respiratory System. Create a color key and color each organ.
Key
Nose □
Trachea □
Bronchi □
Lungs □
Diaphragm □
Human Body Unit
Organ
Name ____________________________
Function
Nose
Trachea
Bronchi
Lungs
Alveoli
Diaphragm
The respiratory system works with the ______________________________________ to make
sure that ________________ (_____) reaches the bloodstream and ____________________
(_____) is removed from the bloodstream.
Human Body Unit
Name ____________________________
Human Body Unit
Name ____________________________
Data Table:
Immediately after
Type of Exercise
Resting
Walking
Jumping Jacks
Running
Pulse Rate (beats/30 sec)
3 minutes
Pulse Rate (beats/30
sec)
6 minutes
Pulse Rate (beats/30 sec)
Human Body Unit
Name ____________________________
Conclusion:
a. We have just finished talking about the circulatory system. Using what you know, explain WHY you observed
the results that you did.
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
Human Body Unit
Name ____________________________
b. We are getting ready to discuss the respiratory system. If we had measured breathing rate, write a hypothesis
(if/then) for that experiment. __________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
c. Why do you think this hypothesis would be supported?
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
d. Explain the results of this lab? __________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
e. Explain how your Hypothesis was or was not supported? You MUST use data to support your answer.
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________