Paper 1 Flashcards
What is the role of ligaments in a joint?
Ligaments are connective tissues that join bone to bone. Their main role is to stabilise the joint and keep it together.
What is the function of tendons?
Tendons are connective tissues that join muscle to bone. When the muscle contracts, the tendon pulls the bone to allow movement.
What is cartilage and its function in joints?
Cartilage is a connective tissue found between two articulating bones at a joint. It reduces friction between them and acts as a shock absorber.
What is an example of flexible tissue formed by cartilage?
Cartilage can also form flexible tissue in structures such as the earlobe.
What are the functions of the skeletal system?
-Protection
-Movement
-Posture
-Support
-Blood cell production
-Protection
What is a synovial joint?
Is the articulation of two bones which is surrounded by a joint capsule. The capsule is lined with synovial membrane and contains a cavity filled with synovial fluid
Dorsiflexsion
Backwards flexion at the ankle eg pointing the toes upwards
Plantar Flexsion
Fowards flexion at the ankle eg pointing toes downwards
Agonist
The prime mover, this is the muscle that contracts and shortens to allow movement, by pulling on the bone
Antagonist
Relaxes and lengthens to allow the joint to be moved
Fixator
Stabilises the point of attachment of the agonist in order to stabilise the movement