🦴 SKELETAL SYSTEM
What is the main job of the skeletal system?
It gives your body support and protects important organs.
What body system allows your body to move?
The muscular system.
What two structures make up the main control center of the nervous system?
The brain and spinal cord.
What is the opening in the center of the eye that allows light to enter?
The pupil.
Which system brings oxygen into your body when you breathe?
The respiratory system.
How many bones are in an adult human skeleton?
206 bones.
What connects muscles to bones?
Tendons.
What carries messages between the brain, spinal cord, and the rest of the body?
Nerves.
What part of the eye focuses light?
The lens.
Which system moves blood throughout your body?
The circulatory system.
What are the two main parts of the skeleton?
The axial skeleton and the appendicular skeleton.
What is the name of the large tendon that connects the calf muscles to the heel?
The Achilles tendon.
What part of the brain controls many automatic functions that keep your body alive?
The brain stem.
What happens to your pupil when you walk from a dark room into bright sunlight?
Your pupil becomes smaller.
Which system breaks down the food you eat?
The digestive system.
What is the strong but flexible tissue that helps protect the ends of bones at joints?
Cartilage.
What is the difference between voluntary and involuntary muscles?
Voluntary muscles are muscles you can control. Involuntary muscles work automatically without you having to think about them.
What is the largest part of the brain and is involved in things such as thinking, learning, and memory?
The cerebrum.
What are the three tiny bones in the middle ear called?
The hammer, anvil, and stirrup.
Which system removes certain wastes from your body?
The excretory system.
You bend your arm to pick up a book. What part of your skeletal system allows your bones to move?
A joint.
You decide to kick a soccer ball. How do your muscular and skeletal systems work together?
Your muscles contract and pull on your bones through tendons, causing your bones to move at a joint.
You touch something very hot and quickly pull your hand away. What is this quick response called?
A reflex action.
Your ears receive sound, but where does the information go so that you can understand what you are hearing?
The information is sent to the brain.
You are running during recess. Your muscles need oxygen, your heart is pumping blood, and your brain is sending messages to your muscles. What does this show about your body systems?
Your body systems are interconnected and work together.