Skeletal System
The muscular system works with this other organ system to help us move
What is the skeletal system
This is used to help us lift heavy objects or make our work easier.
What is lever
Your head is this type of lever
What is 1st class lever
Example of an immovable joint is the ________
What is the skull
This connects the muscles to the bones
What is tendon
This is where the lever arm rotates or pivots. on Lever diagrams, it is often represented by a triangle.
What is fulcrum
Standing on your toes is this type of lever
What is 2nd class lever
Bones are made of cells, collagen, and ______
What is calcium
A tissue that connects two bones together
What is ligament
As the biceps contract, the triceps______________.
What is relax
This is the force that you put into the lever
What is effort force
Your arm is this type of lever
What is 3rd class lever
The straightening of a limb that increases the angle between bone and limb
What is extension
The place where bones meet at.
What is joint
This word is used to describe when the muscle shortens
What is contract
This class of lever has the fulcrum in the middle
What is 1st class lever
In your arm, the effort force is the ___________
What is the muscle
For third class levers, the resistance distance is ______ than the effort distance
What is greater
This part of the bone makes red blood cells for the rest of the body
What is bone marrow
What are the thee types of muscles?
What is skeletal, smooth, and cardiac
A broom is an example of this type of lever.
What is 3rd class lever.
In your arm, the fulcrum is _____________
What is your elbow joint
Cardiac muscle and smooth muscle are examples of ________ muscle
What is involuntary