What is the largest organ in the human body?
The Skin
What system includes all the bones in your body?
Skeletal System
What system allows your body to move?
Muscular system
What type of joint is your knee?
Hinge joint
What system protects organs and gives the body shape?
Skeletal system
What are the three main layers of the skin?
Epidermis, dermis, hypodermis
What is the hard outer layer of bone called?
Compact bone
What type of muscle is attached to bones?
Skeletal muscle
What type of joint allows movement in all directions (like the shoulder)?
Ball-and-socket joint
What connects muscles to bones?
Tendons
Which layer of skin contains blood vessels and nerves?
Dermis
What is the soft tissue inside bones that makes blood cells?
Bone marrow
What do muscles do to create movement?
Contract and relax
What type of joint allows little to no movement?
Fixed joint
Why do bones and muscles need to work together?
To allow movement
What pigment gives skin its color?
Melanin
What are the places where two bones meet called?
Joints
What type of muscle is found in your heart?
Cardiac muscle
What type of joint allows side-to-side movement (like your wrist)?
Gliding joint
What part of the skin helps protect against germs?
Epidermis
What is the main function of sweat?
To regulate body temperature
What mineral makes bones strong and hard?
Calcium
What are muscles that work in opposite pairs called?
Antagonistic muscles
What connects bones to other bones?
Ligaments
What would happen if your muscles couldn’t contract?
You wouldn’t be able to move