Body Systems Notes - Canizares Name _______________________________ Hour ______ Learning Objectives: Cornell/Mark the Text Requirements: Body Systems Identify the basic organs of each body system & the function of each. How do the body systems work together? How does the health of one system affect the health of the other systems? Why is each system of the body important (purpose)? Describe homeostasis, positive & negative feedback mechanisms. --Grading Rubric -- 10 8 6 4 2 Cornell Notes & Mark the Text Checklist above is completed It’s evident that it has been used for studying at home – revised, foldings for using questions, etc. Almost perfect Missing several components Missing many components Missing most components Grading Guide for Mark the Text: Paragraphs numbered Vocabulary Circled or Highlighted Each Paragraph has key ideas Underlined or Highlighted Underlines or Highlights are 5-8 words (less is best) Grading Guide for Cornell Notes: Big Topic ID’ed Essential Question based on big topic & higher level question (hint use how) Notes per paragraph – using mark the text Question per paragraph on left Summary is 5 sentences minimum and is about the entire reading Summary is factual not personal Notes are processed – highlight most difficult, ! *?etc.
Transcript
Body Systems Notes - Canizares
Name _______________________________ Hour ______
Learning Objectives: Cornell/Mark the Text Requirements:
Body Systems
Identify the basic organs of each body system & the function of each.
How do the body systems work together? How does the health of one system affect the health of the other systems?
Why is each system of the body important (purpose)?
Interactions of Human Body Systems Your body has a system to keep its internal temperature constant. That system works much like a thermostat that keeps a building’s temperature constant. The endocrine system regulates body temperature. It sends messages through the nervous system. For example, when temperatures in the body fall below 37° C, the nervous system signals the muscular system to cause the body to shiver. When you shiver, your muscles move. Tiny muscles attached to hairs on the skin contract and pull the hairs up straight, forming goose bumps. This movement generates thermal energy and helps raise body temperature. Keeping the body’s temperature constant requires that the endocrine system, the nervous system, and the muscular system work together. Your body’s organ systems work together and maintain many types of homeostasis (hoh mee oh STAY sus). These Include temperature, nutrient levels, oxygen, fluid levels, and pH. Homeostasis is the ability to maintain constant internal conditions when outside conditions change. Organ systems work together and maintain homeostasis. Feedback Mechanisms As stated earlier, homeostasis helps the body maintain a constant internal environment. The endocrine and nervous systems help detect changes in either the internal or the external environment and respond to those changes. Organ systems use feedback mechanisms to maintain homeostasis. Negative feedback is a control system that helps the body maintain homeostasis by sending a signal to stop a response. Negative feedback is the type of control system in effect when you feel hungry and eat. The digestive system receives signals that it is time to eat. When you eat, the digestive and circulatory systems work together and increase the amount of nutrients in your body. As the nutrients are processed, your stomach sends signals to your brain to tell your body that you are full and to stop eating. Positive feedback is a control system that sends a signal to increase a response. One example of a positive feedback system is blood clotting. When you are bleeding, the circulatory system maintains homeostasis by controlling blood loss. Blood cells called platelets move to the site of the wound. The platelets help control bleeding by forming a clot with a protein called fibrin. As the clot forms, more platelets travel to the clot. The figure below shows how the body uses positive feedback to clot blood.
Childbirth is another example of positive feedback. The endocrine system signals the muscular system to contract. Signals from the muscular system tell the endocrine system to keep activating the muscular system. This continues until the baby is born.
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Intro to Body Systems Ameoba Sisters
1. Remember that your body is made up of
millions of cells! Cells work together and perform
various functions depending on the cell type. Fill
in the LEFT column of the chart below during the
video and finish your pictures after.
Put a Star by the “biggest” level or
organization.
Each body system has many functions – much more than what a seven minute video clip can cover. In each box, write the name of the
body system that BEST fits the description. The wording isn’t identitical to the video clip.
2. Protects from water loss and outside environment: _______________________________
3. Major role in hormone production: _______________________________
4. Major role in gas exchange: _______________________________
5. Excretes wate material and very important for homeostasis: _______________________________
6. Provides active defense against pathogens: __________________________
7. Supports the body with structure: _______________________________
8. Allows for movement: _______________________________
9. Provides ability to reproduce: _______________________________
10. Transports gases and nutrients: _______________________________
11. Coordinates involuntary and voluntary responses: ___________________________
12. Involved in the mechanical and chemical breakdown of food: _________________________
Remember that organ systems do not work in isolation! They work together as a tem. In the following scenarios, select the organ
systems that would certainly be working together for that scenario. Then illustrate a cartoon that represents it. You will create your
own scenario for #15 with an answer and cartoon as well.
Scenario Body Systems Directly Involved (Give at Least 2)
Cartoon
Ouch! You step on a tack and jerk away without even thinking. Then you decide to pick up the tack and place it back in a desk drawer.
You drink two cans of your favorite soda, evn though you know this is not healthy for you. You have to run to the bathroom before the next class period starts.
Create Your Own:
Reflection: Which organ system is most confusing to you (must pick 1): ___________________________________ So far what is
confusing you about this topic? _________________________________________________________________________________
Level of Organization Drawing
Cells
Organ System
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Question Per Paragraph/Idea:
Digestive System
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Notes
Purpose: converts food into ________________ molecules that can be used by
__________; absorbs _____________; and eliminates _________________.
Organs/Components
o M______________: c_________ (mechanical digestion) and enzymes in
___________________ (_______________ digestion)
o Pharynx (________________)
o Epiglottis: small _____________ that closes over the opening of the
respiratory system when _______________________, preventing food
from entering the _______________________.
o Esophagus: muscular tube connecting the ________________ to the
________________
o Liver: produces _______, a substance that helps break down _________
o Gallbladder: stores _______ produced by the ___________
o Stomach: muscular pouch where muscular churning
and__________________ digestion occurs
o Pancreas: secretes ________________ to help break down
carbohydrates, ________________, and fats
o Small Intestine: narrow muscular ______________ where digestion is
completed with the help of enzymes secreted by the __________ &
_____________
o Large Intestine (______________): muscular ________ where water
and salts are absorbed; material spends __________ hours here
o Appendix: ___________________ extension off of the large intestine
that provides a safe place for __________ bacteria
o Rectum: the last part of the digestive system, _________ are eliminated
from the rectum through the anus
Does the digestive system work in isolation/alone? _________
Purpose: filters _____________, maintains electrolyte and fluid
h________________, and eliminates _____________ products from the body
