Understanding Lever Systems in Anatomy

Which feature of a human body acts as the fulcrum in all lever systems?

• Muscle

• Long bone

• Joint

How many classifications of lever systems are there?

• Four

• Five

• Three

In which position will the fulcrum be in relation to the effort and load in a first class lever system?

• On the left

• In the middle

• On the right

What type of lever, useful for overcoming large loads, can be found at the ankle when a basketball player jumps for a rebound?

• First class lever

• Second class lever

• Third class lever

Which of the following is an acronym which helps to remember which part of the lever is in the middle?

• ELF

• LFE

• FLE

Which muscle contracts and acts as the effort during elbow flexion?

• Triceps

• Deltoid

• Biceps

What term defines the use of a lever to overcome a large load with relatively little effort?

• Mechanical disadvantage

• Mechanical advantage

• Resistance arm

Which plane of the human body runs from side to side and separates the human body into front and back?

• Frontal

• Sagittal

• Transverse

When a gymnast performs a forward roll, which axis are they rotating around?

• Frontal

• Vertical

• Sagittal

Which axis, passing from side to side of the body, is rotated around during a back somersault on the trampoline?

• Frontal

• Vertical

• Sagittal