Skeletal System
How many bones is a skeleton made up of?
206 bones
Bones contain a soft material called...?
marrow
How many muscles does your body have?
about 600 muscles
What are the 3 parts of the circulatory system?
blood, heart, and blood vessels
How many chambers does a heart have?
4
Name 2 things the skeleton does
It supports your body. It gives shape to your body.
At every joint, bones are held together by strong threadlike tissues called....?
ligaments
True or False: Your do not control your skeletal muscles
false, skeletal muscles are under your control (lift arm)
What does blood carry to the body cells as it moves through the circulatory system?
food and oxygen
True or False: The right side of the heart works harder than the left side
False, the right side only pumps blood to the lungs. The left side pumps blood to all other parts of the body
What parts of your body work together to help you move?
How do hinge joints work?
They bend back and forth in only one direction
Where are smooth muscles found?
in large blood vessels
What would happen if wastes such as carbon dioxide were not removed?
The body would be poisoned
True or False: Blood is made of both liquids and solids
True
Name 3 parts of the skeleton
vertebra, backbone, spinal cord, rib cage, skull etc.
How does a pivot joint work?
What are the skeletal muscles that a person can choose to move called?
voluntary muscles
What are the largest blood vessels called?
arteries
What do red blood cells carry to body cells?
oxygen
What 2 materials are skeletons made of?
bone and cartilage
How does a ball and socket joint work?
It can move in all directions
What are the 3 kinds of muscle?
Skeletal, cardiac, and smooth muscles
What are the smallest blood vessels called?
capillaries
Number the sentences to show how blood flows through the heart:
Blood Enters the top left chamber
after traveling through the body, blood enters the top right chamber
Blood goes through a valve to the bottom right chamber
The bottom left chamber pumps blood to the rest of the body
The bottom right chamber pumps blood to the lungs
4 Blood Enters the top left chamber
1 after traveling through the body, blood enters the top right chamber
2 Blood goes through a valve to the bottom right chamber
5 The bottom left chamber pumps blood to the rest of the body
3 The bottom right chamber pumps blood to the lungs