| A | B |
| humerus | long bone that extends from shouldar to elbow |
| ulna | one of the bones in the forearm |
| clavicle | the collarbone |
| sternum | the breastbone |
| scapula | shouldar blade |
| radius | one of the bones in the forearm |
| phalanges | the fingers/toes |
| femur | long bone in the upper leg |
| tibia | one of the ones in the lower leg |
| fibula | one of the bones in the lower leg |
| patella | the knee cap |
| cervical spine | the neck; 7 vertebrae |
| thoracic spine | upper back; 12 vertebrae |
| lumbar spine | lower back; 5 vertebrae |
| sacrum spine | lower part of spine; 5 fused vertebrae |
| skeletal, cardiac, smooth muscle | three types of muscles |
| superior | towards or closer to head |
| inferior | towards or closer to feet |
| anterior | towards the front |
| posterior | towards the back |
| medial | towards midline/center of the body |
| lateral | left or right of the midline |
| proximal | close/near the point of reference |
| distal | distant/farther from point of reference |
| musculoskeletal system | system made up of skeleton and muscles |
| respiratory system | system inolved in the exchange of gases between body and environment |
| circulatory system | system that transports blood to all parts of the body |
| arteries | blood vessels that take blood away from the heart |
| capillaries | smalles blood vessels that distrubutes fluids and gases |
| veins | blood vessels that carry blood back to the heart |
| epidermis | outmermost layer of skin |
| dermis | second layer of skin |
| subcutaneous | layer of fat beneath the skin |
| urinary system | system that filters blood and excretes waste from the body |
| endocrine system | regulate the body by secreting hormones |
| alveoli | air sacs of the lungs |
| bronchi | two main branches of the trachea; leads to the lungs |
| diaphragm | muscle below the thoracic cavity; moves up and down during respiration |
| ligaments | connect bone to bone |
| tendons | connect bone to muscle |
| nervous system | system that commucates an controls; made up of the brain, spinal cords, and nervs |