Skeletal System
There are more than _________ bones in your body.
200
About half of your body weight comes from_____.
muscles
You have about a billion of these in your body.
Nerves
The black part of the eye
pupil
Your ears are made up of three parts:
the outer ear, the middle ear, and the inner ear.
A set of 22 bones that protects the brain.
The skull
The place where two bones meet.
joints
Doctors hit you on your knee to check these.
Your reflexes
The part of your eye that gives it color
iris
The outer ear's main job.
catch sounds and guide them into the middle ear
The set of bones that is responsible for protecting your spinal cord.
vertabrae or spinal column
The tissue that connects one bone to another.
liagment
Two important parts of the nervous system.
The brain and the spinal cord
You need this to see.
light
The middle ear is made up of three small bones
the hammer, anvil and stirrup.
The set of bones that protects your lungs and heart.
the ribs or ribcage
Muscles are divided into these two groups.
voluntary and involuntary
The three main parts of the brain.
The medulla,cerebrum and cerebellum
Thin, clear tissue that covers the colored part of the eye.
cornea
In order to hear messages are sent to the brain through the
auditory nerve
The set of bones that makes up the axial bones.
Skull, spine and ribs
This tendon is named after a famous Greek warrior.
The Achilles tendon
This part of the brain is also known as "gray matter"
The cerebral cortex
Messages travel to the brain down this nerve.
optic nerve
Tears are to eyes what earwax is to ears means
they both protect and keep germs out of the eyes and ears