| A | B |
| artery | thick, muscular vessel that transports blood away from the heart; |
| atherosclerosis | condition that results when arteries supplying oxygen |
| blood pressure | the pressure blood exerts against the inner walls of |
| capillary | the smallest vessels in the heart |
| pulse | rythmic expansion and contraction of your arteries each time your |
| vein | vessels that transport blood back to the heart from the lungs or |
| hypertension | high blood pressure |
| bone marrow | a gel-like substance in spongy bone |
| cardiac muscle | the cardiac muscle pumps blood through the heart and |
| cartilage | a soft, flexible material found in bone |
| compact bone | compounds of calcium and and phosphorus are centrated in |
| joint | places in your skeleton where two or more bones meet or are |
| ligament | strong bands of tissue that hold bones together |
| smooth muscle | smooth muscle is found in many places throughout your |
| spongy bone | the part of a bone that looks like a sponge |
| tendon | strong elastic bands of tissue |
| brain stem | the part of the brain that connects with the spinal cord |
| cerebellum | the cerebellum corrdinates the actions of all your muscles and maintains balance |
| cerebrum | the largest part of the brain |
| hormone | a chemical made by a ductless gland in one part of the body that brings about a change in another part of the body |
| neuron | the working unit of the nervous system |
| reflex | an automatic body response to aa potentially harmful stimulus |
| spinal cord | a long cord that extends from the brain stem down in the back |
| synapse | a small space found between neurons |
| target tissue | the specific tissue affected by a hormone |