Skeletal System
What is the main job of the skeleton?
To support the body, protect organs, and help movement
What is the main job of muscles?
To create movement
What is a joint?
A place where two bones meet
Which TWO body systems work together to help you move?
The skeletal system and muscular system
True or False: Your skeleton rebuilds itself roughly 7 times in your life
True
Which bone protects the brain?
The Skull
What happens to a muscle when it contracts?
It shortens/tightens
What is the role of a ligament?
To connect one bone to another
Why are joints important for movement?
They allow bones to move in different ways
What protects the heart and lungs?
Rib Cage
Name TWO functions of the skeletal system
Support, protection, movement, blood cell production
Name the large muscle on the front of the upper arm
Bicep
What type of joint is found in the shoulder?
Ball-and-socket joint OR Synovial
If a muscle attaches to your humerus (upper arm) at one end, and your radius (forearm) at the other end, which joint will it move?
Elbow Joint
What is the name of the muscle at the back of the upper arm?
The tricep
Which long bone is found in the upper leg?
Femur
Why do muscles work in pairs?
Because muscles can only pull, not push
Why are synovial joints important?
They allow smooth movement between bones
Explain how bones, muscles, and joints work together when kicking a football
Muscles contract and pull on bones while joints allow the leg to move
Which system gives the body its shape?
Skeletal System
Why would movement be difficult without bones?
Muscles need bones to pull on in order to create movement
Describe what happens to the bicep and tricep during a bicep curl
The bicep contracts while the tricep relaxes
Name TWO features found in a synovial joint
Cartilage, synovial fluid, ligaments, joint capsule
A student tears a ligament in their knee. Which body system is MOST directly affected and why could movement become difficult?
The joint/skeletal system is affected because ligaments help stabilise joints, making movement harder and less stable
Why are cartilage and synovial fluid important in joints?
They reduce friction and protect bones during movement