Human Body

Tiny blood vessels that surround air sacs

Nerve cell

moves parts of the body

provides nutrients to the body

Blood vessels that return blood to the heart

Bones meet at--

Kind of muscle that makes up the walls of the heart

Tube of nerves that runs through the backbone

What helps soften food and starts the digestion process?

What is the term for the four sections of the heart?

Different tissues that work together

Vessels that carry blood from the heart

Your heart is about the size of what other body part?

Cells of the same type

Which kind of muscle squeezes and relaxes without stopping?

supports the body and protects organs

Groups of neurons that pass along information

Kind of muscle found in the walls of the stomach

sends and receives messages

What happens if you do not chew food long enough?

Skeletal muscle with light and dark stripes