Joints and Levers in the Human Body

What are the four parts to a lever? Select all that apply.

• Lever Arm

• Fulcrum

• Effort

• Load

A __________ is a simple machine consisting of a rigid bar that rotates about a fulcrum and is used to transmit force.

• Wheel and axle

• Pulley

• Wedge

• Lever

Tags

NGSS.MS-PS2-2

In the human body, this acts as the lever arm.

• Bones

• Joints

• Muscles

• Tendons

Tags

NGSS.MS-PS2-1

In the human body, this acts as the fulcrum.

• Bones

• Joints

• Muscles

• Tendons

An example of a first class lever in the human body is:

• Standing on your toes

• Elbow joint

• The skull flexing and extending

• A cartwheel

Tags

NGSS.MS-PS2-1

The elbow joint is an example of this type of lever:

• First Class Lever

• Second Class Lever

• Third Class Lever

• Fourth Class Lever

This is an example of which type of lever?

• First Class

• Second Class

• Third Class

• Fourth Class

A push-up is an example of which type of lever?

• First Class

• Second Class

• Third Class

• Fourth Class

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2