biology 2 Flashcards
(12 cards)
what are the four main functions of the skeleton
support for the body, movement, protection of vital organs and making and storing blood cells
what is a muscle
a tissue that contracts and relaxes
in the skeleton what are joints
where two bones meet
why are bones covered by cartilage
to stop them rubbing
what is the function of muscles
to bring around movement
name three types of muscle
smooth, cardiac and skeletal muscle
where are cardiac muscles found
in the heart
where are smooth muscles found
in the walls of hollow organs
where are skeletal muscles found
covering the skeleton
what are tendons
a tissue that attaches muscle to bone
what are antagonistic muscles
muscle pairs that oppose the others action
what do muscles do to bones when they contract
exert a force on the bones
