Musculoskeletal system Flashcards
(20 cards)
Define articulation
The moving bones in a joint
Example of arm extension
Tricep extension
Example of arm flexion
Bicep curl
Ball and socket joint
Allows movement in every direction.
Round head of one bone, fitting into a cup shaped capsule in the connecting bone.
Articulating bones of the hip
Ball and socket
Femur and pelvis
Articulating bones of the shoulder
Ball and socket
Humerus and scapula
Hinge joint
Only allows movement in one direction.
E.g ankle, knee, elbow
Articulating bones of the ankle
Talus, tibia and fibula
Articulating bones at the knee
Femur and tibia
Articulating bones at the elbow
Humerus, radius and ulna
Example of Dorsi flexion
Running, walking
Example of plantar flexion
Standing on tip toes
Example of horizontal abduction and adduction
Tennis forehand (adduction) and backhand (abduction)
Plane and axis for extension/flexion
Plane: Sagittal
Axis: Transverse
Plane and axis for abduction and adduction
Plane: Frontal
Axis: Sagittal
Plane and axis for rotation
Plane: Transverse
Axis: Vertical
A plane of motion
A set of imaginary lines running through the body, in order to help us understand and explain joint actions.
First class lever with example
Fulcrum is located between the effort and the resistance
Example: extension of the elbow
Second class lever with example
Resistance lies between the fulcrum and the effort
Example: plantar flexion of the ankle
Third class lever and example
Effort lies between the fulcrum and the resistance
Example: hip, knee, elbow flexion
