The tiny brain of a cell.

There are this many bones in the body.

The skeleton is made up of bone and this other softer, flexible material.

Joints allow the parts of the body to do this.

The epidermis is made up of this many layers of dead skin.

Red, White, Fat, Blood, Skin, Nerve, and Bone _____.

All of the bones in the body make up this system.

Inside the bone is this soft material that provides food to the bone.

Bones at joints are held together by this threadlike tissue.

This layer of skin is the inner, thicker layer of skin.

These cells carry messages around the whole body.

Your brain is covered by this helmet-shaped bone.

Joints like these are in the elbow and allow the arm to move back and forth in one direction.

This part of the skin is unique to every single person - no two of these are the same.

These cells can be red or white and travel through the whole body.

The skeleton gives the body shape, but it cannot move without these.

These two things help nourish bones and make them stronger.

These joints can move around and back, like your neck.

Melanin is a pigment that gives skin this attribute.

These cells protect the whole body and act as an outer layer.

This part of the skeleton protects the heart.

True or false: bones always stay the same size?

These joints allow body parts to move in all directions, like the joint in the shoulder.

Skin is the ___________ organ in the body.