Muscle Size and Strength

1
Muscle Size and Strength
2
How many muscles do you think we have in our
human body????

• OVER 620 Muscles are in the human body!!!

3
Where are the smallest and largest muscles found
in our body?????

• The smallest muscle is the stapedius. It is
  located in the inner ear to conduct vibrations.
  It is about 1 millimeter wide.

• The largest muscle is the latissimus dorsi. It is
  a broad, flat muscle on the back and helps move
  the arms.

4
The three kinds of muscles

• Skeletal (voluntary)
• Smooth (involuntary)
• Line the digestive track.
  Help your blood
  flow.
• Cardiac (involuntary)
• Located in the heart.

5
What do you think the word force means?????

• The push or pull of an object

6
How can we measure force???

• Force is measured in NEWTONS..

7
How can we convert Newtons to Kilograms????

• 9.8 Newton's 1 Kilogram
• But we can round..
• 10 Newton's 1 Kilogram
• Multiply your kilograms by
• 10
• to find the Force.

8
Muscle size vs. Muscle Strength

• Lab Results
• After reviewing your data from the Muscle Size
  vs. Muscle Strength lab, answer the following
  questions on the back side of your paper using
  complete sentences.

• 1. Does muscle size affect muscle strength?
• 2. Was there a correlation (relationship)
  between the two?
• 3. What were the gender results? Males stronger?
  Females stronger?