| A | B |
|---|
| voluntary muscles | skeletal muscles used when kicking a ball |
| involuntary muscles | muscles used in breathing |
| neurons | carries information in the form of electrical signals |
| pathogens | organisms that cause disease |
| infectious diseases | diseases that you can pass to others |
| immune system | helps protect you from getting infections |
| vaccine | makes you immune to a disease by signaling your body to make antibodies |
| muscle cells | form cardiac and skeletal muscles |
| jobs of the skeletal system | helps you move & protects your organs |
| femur | thigh bone - upper leg |
| tibia & fibula | lower leg bones |
| patella | kneecap |
| phalanges | finger & toe bones |
| vertebrae | backbone |
| cranium | skull |
| sternum | breastbone |
| radius & ulna | lower arm bones |
| humerous | upper arm bone |
| pelvis | hipbone |
| tarsals | ankle bones |
| clavicle | collarbone |
| scapula | shoulder blade |
| carpals | wrist bones |
| one muscle contracts while the other muscle relaxes | how skeletal muscles work |
| the path of air in the body | from pharynx, to trachea, to bronchial tubes |
| They are in the brain & spinal chord | neurons |
| digestion | process of breaking food into a form cells can use |
| some organs of the digestive system | esophagus, small intestines, stomach |
| job of the brain | sends messages to body systems |
| central nervous system | includes brain, spinal chord, neurons |
| Once you have measles, you will not get them again | because you have built up antibodies to measles. |
| viruses | about 100 times smaller than bacteria |
| bacteria & viruses | pathogens that cause infectious diseases |
| skeletal muscle | voluntary; work in pairs to help your skeleton to move; most of the muscles in your body are this type |
| cardiac muscle | involuntary; found only in the heart; looks striped |
| smooth muscle | involuntary; work automatically in different organ systems |
| respiratory & circulatory systems work together | breathe oxygen into lungs, then into blood & heart, then to the rest of the cells, CO2 breathed out |
