GCSE PE - Skeletal System Flashcards
What are the functions of the Skeletal system?
SLAPPS Structure Leverage Attachment Protection Production of Red/white blood cells Storage of minerals
Define the term ‘joint’
Where two or more bones meet
What is a ligament?
A tough band of fibrous, slightly elastic connective tissue that attaches bone to bone
What is articular cartilage?
Smooth tissue which covers the surface of articulating. Ones to absorb shock and allow friction-free movement
What is the role of ligaments?
Connect bone to bone
Stabilise joints during movement
prevent dislocation of a joint
What is the role of synovial fluid?
Reduces friction and nourishes articular cartilage
What is the role of articular cartilage?
Absorbs shock and allows friction-free movement
What is the joint capsule?
A fibrous sac with an inner synovial membrane
What is the function of the joint capsule?
It encloses and strengthens the joint secreting synovial fluid
What is a bursa?
A closed, fluid-filled sac found where tendons run over bones
What is the function of a bursa?
It reduces friction between tendons and bones
Name the 5 types of synovial joint
Hinge joint Pivot joint Ball and socket joint Gliding joint Condyloid joint
Where can you find a hinge joint?
Elbow, knee and ankle
Where can you find a pivot joint?
Between the axis and atlas at the top of the vertebrae
Where can you find a ball and socket joint?
The hip and shoulder
What is flexion?
Movement which decreases the joint angle
What is extension?
Movement which increases the joint angle
What is plantarflexion?
Pointing the toes
What is abduction?
Movement of the limbs away from the midline of the body
What is adduction?
Movement of the limbs towards the midline of the body