Let's solve each question based on the information provided in the text and the diagrams.
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1. Muscles and bones work together to help us _________.
Answer: *move*
Explanation: The passage states, "Bones and muscles work together to make us move." So, the correct answer is
move.
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2. Muscles are made from a special type of _________.
Answer: *elastic tissue*
Explanation: The text says, "Muscles are made up of a special kind of elastic tissue that changes shape as you use them." So, the correct answer is
elastic tissue.
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3. When the muscle is long and thin, the muscle is _________.
Answer: *relaxed*
Explanation: Looking at the top diagram (arm straight), the bicep muscle appears long and thin. This indicates the muscle is in a relaxed state.
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4. When the muscle is short and thick, the muscle is _________.
Answer: *contracted*
Explanation: In the bottom diagram (arm bent), the bicep is shorter and thicker — this is the state of contraction. When muscles contract, they shorten and thicken.
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5-6. Muscles can be ____________ (controlled) or ____________ (uncontrolled).
Answer: *voluntary* or *involuntary*
Explanation: The terms "controlled" and "uncontrolled" refer to voluntary and involuntary muscles respectively. Voluntary muscles are under conscious control; involuntary muscles are not.
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7. ____________ are voluntary muscular tissues and are attached to the skeleton.
Answer: *Skeletal muscles*
Explanation: Skeletal muscles are attached to bones and allow movement under our control — they are voluntary.
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8. ____________ are involuntary muscular tissues that make up your heart.
Answer: *Cardiac muscles*
Explanation: Cardiac muscle is found only in the heart and works involuntarily (without conscious control).
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9. ____________ are involuntary muscular tissues that make up the other internal organs.
Answer: *Smooth muscles*
Explanation: Smooth muscles are found in internal organs like the stomach, intestines, and blood vessels. They work automatically (involuntarily).
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✔ Final Answers:
1.
move
2.
elastic tissue
3.
relaxed
4.
contracted
5-6.
voluntary,
involuntary
7.
Skeletal muscles
8.
Cardiac muscles
9.
Smooth muscles
These answers are directly supported by the notes and diagrams provided in the worksheet.
Parent Tip: Review the logic above to help your child master the concept of muscular system worksheet pdf.
