| A | B |
|---|
| basic unit of all living things | cell |
| the boundary of the cell | cell membrane |
| gel-like fluid inside the cell | cytoplasm |
| largest structure within a cell containing chromosomes | nucleus |
| located in the nucleus of the cell - 46 are present in all human cells except for the sex cell | chromosomes |
| located within the chromosomes and determine hereditary characteristics | genes |
| each gene is composed of this chemical which regulates the activity of the cell | DNA - deoxyribonucleic acid |
| group of similiar cells that perform a specific task | tissue |
| tissue that has the ability to contract and produce movement | muscle tissue |
| tissue found in the nerves, spinal cord and brain | nervous tissue |
| tissue that connects, supports and encases various body structures such as fat and bone | connective tissue |
| tissue covering the external surface of the body and forms membranes that line body cavities and organs | epithelial tissue |
| two or more kinds of tissues that perform special body functions | organ |
| group of organs that work together | system |
| space inside the skull | cranial cavity |
| space inside the spinal column | spinal cavity |
| space containing the heart, lungs, and bronchi | thoracic cavity |
| space containing the stomach, intestine, kidneys and other body organs | abdominal cavity |
| space containing the urinary bladder, reproductive organs, large intestine and rectum | pelvic cavity |
| both the pelvic and abdominal cavity | abdominopelvic cavity |
| large internal organs contained in the body cavities, especially in the abdominal cavity | viscera |
