Here are the answers to help you complete your worksheet on the Muscular System.
Part 1: Five Facts About Your Muscles
*Since this section asks for facts "you think you know," here are five common and accurate facts you can use:*
1. The human body has over 600 muscles.
2. The heart is a muscle that never rests; it beats all day and night.
3. Muscles can only pull (contract); they cannot push. That is why they work in pairs.
4. The strongest muscle in the body based on its size is the masseter (the jaw muscle).
5. It takes more muscles to frown than it does to smile.
Part 2: Research Questions
1. What is another name for smooth muscle?
Visceral muscle.
2. What does involuntary mean?
It means something happens automatically without you having to think about it or control it (like your heart beating or digesting food).
3. What’s another name for skeletal muscle?
Striated muscle (or voluntary muscle).
4. What does striated mean?
It means having stripes or bands. Under a microscope, these muscles look like they have alternating light and dark lines.
5. Where are the pectoral muscles located?
They are located in the chest.
6. What muscle is the gluteus maximus?
It is the large muscle in the buttocks (your bottom).
7. What does a muscle do when it contracts?
It gets shorter and tighter. This pulling action creates movement.
8. What kind of muscles are in the esophagus?
Smooth muscles (which help push food down to the stomach).
9. Where are over half the bones in the skeleton located?
In the hands and feet.
10. How are muscles held to the bones?
They are held by strong bands of tissue called tendons.
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Final Answer:
Part 1: Five Facts
1. The human body has over 600 muscles.
2. The heart is a muscle that works continuously without resting.
3. Muscles work in pairs because they can only pull, not push.
4. The masseter (jaw muscle) is the strongest muscle by weight.
5. Smooth muscles are found in internal organs like the stomach and intestines.
Part 2: Research Answers
1. Visceral muscle
2. Happening automatically without conscious control
3. Striated muscle
4. Having a striped appearance
5. In the chest
6. The buttock muscle
7. It shortens and tightens
8. Smooth muscle
9. In the hands and feet
10. By tendons
Parent Tip: Review the logic above to help your child master the concept of health body systems worksheet for sixth grade.
