Planes and axis and levers Flashcards
What’s the 3 planes
Frontal
sagittal
Transverse
What are the 3 axis
Transverse
sagitta
longitudinal
Frontal plane
Vertical plane divides body into front and back halves
Sagittal axis
Runs from back to front
What movement occur with frontal plane and sagittal axis
Adduction
Abduction
Saggital Plane
Vertical plane that divides body into left and right halves
Transverse axis
Side to side through the hip
Movement from sagittal plane and transverse axis
Flexion
Extension
Transverse plane
Divides body into upper and lower halves
Longitudinal Axis
Runs from top to bottom
What movement occurs from transverse plan and longitudinal axis
Horizontal adduction
Horizontal Abduction
Rotation
Where is a first class lever found?
In the neck
Where is a second class lever found?
Ankle
Where are the third class lever found?
Flexion of the elbow
What is the mechanical advantage of the 2nd class lever?
Can generate large amounts of force to hold body weight
What is the mechaical disadvantage of the 2nd class lever?
Slow
Limited range of movement
What is the mechanical advantage of 1st and 3rd class levers?
Large range of movement
Any resistance can be moved quickly
What is the mechanical disadvantage of 1st and 3rd class levers?
Cannot apply much force to move an object, more effort required for smaller loads