__________ includes the brain, spinal cord, and a complex network of nerves. This system sends messages back and forth between the brain and the body.

What gives the brain messages?

What part of the body protects the brain?

What system is represented by the picture?

What part of the nervous system is shown?

What part of the nervous system is shown?

The brain and the spinal cord make up the central nervous system.

Your body has ______ that send you information about your environment.

The brain is what controls all the body's functions. The spinal cord runs from the brain down through the back.

A bundle of nerve fibers and tissues that connect the parts of the body to the brain:

Special structures called ________ respond to changes inside and outside the body, and they report these changes to your nervous system.

Which organs help people know if something is cold?

How do sounds get from the inner ear to the brain? Circle all that apply.

*2 answers

Enjoying a sweet piece of fruit.

Match the situation to the kind of receptor that reacts.

Feeling the poke of a sharp object.

Match the situation to the kind of receptor that reacts.

True or False: You need light to be able to see.

What structure of the eye does light enter?

Which part of the eye that controls the size of the pupil?

What structure in the eye is responsible for receiving the light and transferring the information to the Brain?

Directions: Read the passage, then read the answer that follow.

Barn Owl Senses

Our five senses carry information about our environment to our brain. We find food with our sense of smell, and our taste buds react to that smell allowing us to taste. We can feel something is too hot with our sense of touch. Images are received through our eyes, and we can hear sounds with our sense of hearing. The same is true for animals. The barn owl, for example, has excellent vision and hearing for catching prey. Barn owls hunt mostly at night, so they rely heavily on their senses to find food. Their large eyes let in more light than the average nocturnal animal, so their sense of vision is very good.

Owls’ eyes are large compared to the size of their body. Owls are able to see very well in the dark because their large eyes let in a lot of light. How does the owl see a specific object like a mouse in the dark?