Bones and Muscles

Which statement best describes how the skeletal and muscular systems work together to help you stand up from a chair?

• Bones contract to pull muscles upward for movement

• Muscles push bones to create lifting during movement

• Muscles attach to bones and pull them to cause movement

• Bones and muscles both harden to stop all movement

A classmate says, “Bones only protect soft organs.” What is the BEST response?

• Bones only protect organs and do nothing else

• Bones protect organs and give the body structure

• Bones protect organs and digest food chemicals

• Bones protect organs and pump blood around

Which choice is the MOST effective daily habit to protect both bones and muscles during sports?

• Skipping warm-ups to save practice time

• Wearing safety gear and doing proper warm-ups

• Only exercising upper body muscles daily

• Drinking only soda instead of water daily

Which statement best describes the skeletal system shown in the diagram of a body frame?

• A system of bones and connecting tissues

• A system of nerves and signal pathways

• A system of muscles and pulling fibers

• A system of organs for digesting food

Bones are organs made of living tissue. What main function do they provide for the body’s shape and support?

• They act like steel girders supporting structure

• They pump blood through veins and arteries

• They digest nutrients inside the abdomen

• They send electrical signals between neurons

Which part of bone is responsible for producing blood cells for the circulatory system?

• Spongy tissue on the inside of bones

• Smooth cartilage at the bone ends

• Hard compact tissue on the outside

• Ligaments connecting bones together

A student explains that bones are hard all the way through. Which revision makes the explanation accurate?

• Bones are hard outside but spongy inside

• Bones are spongy outside but hard inside

• Bones are soft throughout like muscles

• Bones are only hard in the middle area

Given bones store minerals, which statement is the best example of how bones help maintain the body’s mineral balance?

• They store calcium and release it when needed

• They store oxygen and release it during exercise

• They store water and release it during sweating

• They store vitamins and release them after meals

If the spongy tissue inside bones stopped producing blood cells, which body system would be directly affected first?

• Circulatory system transporting blood cells

• Respiratory system exchanging gases

• Digestive system breaking down food

• Nervous system sending brain signals

Tags

NGSS.MS-LS1-3

Two students compare bones to steel girders. What is the most accurate reason this analogy helps explain bone function?

• Both provide structural support to hold shape

• Both create electrical energy to power movement

• Both absorb nutrients to fuel body processes

• Both produce sound waves to communicate