1. What does it take to move the parts of the human body?
Suggested: Chapter 17.1 sheet
1. After school help Thursday.
2. Today is the start of Term 4.
3. We’ll be using a homework packet for chapter 17, which will be do at the end of the unit.
What are the three types of muscle and their functions?
Starred thought of the Day
*Today, do something nice for someone, and don’t expect anything in return.”
We started Chapter 17 today, and answered questions about Chapter 17. I handed out notes and a homework packet- it will be due at the end of April.
1. Smooth muscle is the type of muscle that can move your arms
b) false- Skeletal muscle moves arms
2. Cardiac Muscle is controlled by your conscious thoughts
b) False- Cardiac Muscle is unconsciously controlled- controlled by brain-stem.
3. Sarin as a chemical made by German scientists in 1938 as a pesticide. It affects humans as well, and is classified as a nerve agent. Sarin works by keeping muscles constantly “on.” How do you think this would affect a person?
Your muscles would be uncontrollable and use up all ATP. If ATP is used up, muscles cannot contract. Ultimately, if this were to affect the heart, the individual would die.
4. Your bones are soft when you’re born and harden over time.
a) True- bones start out as cartilage and solidify as you age
5. Potassium Cyanide is another chemical used to poison people. Potassium cyanide works by disrupting the electron transport chain in Cell Respiration. What do you think would happen?
Similar to what we said about Sarin- if ATP production is disrupted, particularly in the heart, a person will die. The heart needs a constant supply of ATP so that it doesn’t tire.
6. Why do we have bones?
Bones help us move, and protect the body organs. Without bones (and muscles), you couldn’t move. Furthermore, the body organs are shielded by bones.