Skeletal system
What is it made of?
Bones
What is the central nervous system made of?
Brain and spinal cord
What is it made of?
Muscles
What are the two types of waves?
Transverse wave and longitudinal wave.
Which wave needs a medium?
Sound wave
Name 2 bones and the internal organ they protect.
The skull protects the brain, the ribs protect the heart and lungs, and the backbone protects the spinal cord.
What are the two types of nerves?
Sensory nerve and motor nerve
Your stomach is a muscle that is not attached to your skeleton. What kind of muscle is it?
Smooth muscle
When a wave moves, what is transferred?
Only the energy is transferred.
What is the type of wave of each?
light wave is a transverse wave. Sound wave is a longitudinal wave.
What is the function of the cartilage?
It acts as a cushion between the bones.
What do we call the organ that send messages through sensory nerves to the brain? List all 5.
Sensory organ: eye, ear, nose, skin, and tongue.
What are the three types of muscles? give an example of each.
Skeletal (biceps), Smooth (intestine), and cardiac (heart).
A wave with shorter wavelength and more repetitions has ------------- frequency.
higher
Where does the sound wave move fastest: solids, liquids, or gases?
Solids because particles are closer and energy can be passed faster between the particles.
What is the name of the structure that attaches the bones to the muscles?
Tendon
When you sleep, your heart keeps beating and you keep breathing. What part of your brain is responsible of these functions?
Brain stem controls these involuntary functions.
Explain a way how the muscular system interacts with the skeletal system
The muscular system works with the skeletal system by pulling on bones to make the body move.
How do particles move in a transverse wave? and in a longitudinal wave?
transverse wave: Up and down
longitudinal wave: Back and forth
Describe how light travels trough the eye.
1- light enters the eye through the pupil.
2- the lens refracts and focuses the light on the retina.
3- The retina changes light to an electric signal.
4- the optic nerve carries the signal to the brain.
how do muscles and bones work together to move the body?
muscles are attached to the bones. When the muscles contract they move the bone.
When a harmful object moves toward your eye you blink. Explain what happens using the words: sensory nerve and motor nerve.
a sensory nerve carries the signal of an object coming closer from the eye to the spinal cord. A motor nerve carries a response signal from the spinal cord to the eye muscles to make it close.
Explain a way how the muscular system interacts with the nervous system
The muscular system works with the nervous system because the brain sends messages through nerves to tell the muscles when to move.
A wave that has more energy must have longer --------
Amplitude
How would you use a slinky to model these waves?
For sound wave you move it forward and backward.