CKLA Human Body Systems Review

Specialized cells form ________ that have specific functions. These make organs.

Muscles work in ________.

The strongest bone in your body is your

Our bones are _______ which means they have holes.

What is the most important 3-pound organ in your body?

What do muscles do to bones?

The ________ is the largest part of your brain.

Muscles receive messages from nerves that tell them when to _______, or shorten.

The colored part of your eye is the ________.

Your outer earflaps made of skin and cartilage are your

Earwax, eyebrows, and eyelashes all prevent ______ from getting into our sensory organs.

The longest and most powerful tendon in your body attached to your heel bone is your __ tendon.

The left side of the cerebrum controls muscles on the ________ side of your body.

An example of an appendage is your

Sound is produced by _______.

The snail-shape tube filled with fluid and tiny hairs in your inner ear is called your

The _______ sends messages to the brain to turn the image from the retina right side up.

Nerve cells that collect messages through your eyes, ears, nose, tongue, and skin are called

This word means "to tie", and they wrap our bones and joints together.

__________ are the basic building-blocks of life.

What are two of the most important parts of the nervous system?

The _______ is the control center for balance and coordination.

The ________ is in the back of your brain, and is called the "little brain".

The tunnel in your ear is called your ear ______, and it is about half as long as your pinky.

The _______ covers the iris and allows light through.

Your ________ system is your body's command system.

________ joints allow us to move our arms and legs in full circles.

The ______ is at the back of the eye, and images appear upside down on it.

__________ muscles line the walls of internal organs and blood vessels.

We have immovable joints in our

Scientists call collarbones

Your "funny bone" is a _________.

The brain is split into different _____________.

The place where two bones meet is called a

The _______ is the clear disc that focuses on objects.

The white of your eye is the ________.

The eye sees objects by seeing the _______ that reflects, or bounces off, objects.

Your part of the brain the blends into the top of the spinal cord is called the

Our jaw is an example of a _________ joint.

__________ muscles give your bones mobility, or motion.

The only class of animals with an outer ear are

__________ is the mineral that makes our bones strong.

All of our body systems are __________.

All systems have vital ________ made from tissues.

Our skull, spine, and rib cage make up our ______ skeleton.

__________ muscle is found only in your heart.