The Musculoskeletal System Flashcards
How are tendons different from ligaments?
Tendons connect muscle to bone and are less elastic
How could you describe bone tissue?
Dense and hard
How could you describe cartilage?
Dense
How could you describe ligaments?
Tough and elastic
How does cartilage prevent damage to the ends of the bones?
It provides a smooth surface where bones come together at a joint
How many bones are in the human body?
206
What are invertebrates?
Animals that either don’t have a skeleton or their skeletal system is on the outside
What are ligaments made up of mostly?
Long fibres of collagen
What are some problems with the musculoskeletal system?
Diseases like osteoporosis, fractures, torn ligaments, tendons and muscle tissue
What are the main minerals found in bone tissue?
Calcium and phosphorus
What are the three different types of connective tissues?
Bones, cartilage, and ligaments
What are the three types of muscle tissues?
Skeletal muscle (vonuntary), smooth muscle (involuntary), and cardiac muscle (involuntary)
What are vertebrates
Animals with a back bone
What do bones store?
Calcium and other minerals
What do canals inside the bones contain?
Blood vessels and nerves
What do ligaments do?
They hold bones together at the joints
What do muscles do in response to signals from the nervous system?
Contract
What do muscles do when they contract?
Become shorter and thicker
What do tendons connect?
Muscle to bones
What do the proteins in the muscle fibres cause the muscle to do?
Contract when signaled by nerve cells
What does bone tissue consist of?
Bone cells within a matrix of minerals and collagen fibres
What does cartilage provide?
Strong, flexible, low-friction support for bones and other tissues
What does muscle tissue consist of?
Bundles of long cells called muscle fibres that contain specialized proteins
What happens when the muscles contract?
Exert a force which moves one or both of the bones to which the muscle is connected
