| A | B |
|---|
| light exercise before strenuous activity | warm-ups |
| the number of times you need aerobic exercise ; at least | three times per week |
| the ability to move quickly and easily | agile |
| two large organs in which the exchange of oxygen and carbon dioxide occurs | lungs |
| the ability to bend easily | flexibility |
| a type of warm-up; lengthens your muscles, tendons, and connective tissue | stretching |
| the ability to keep on | endurance |
| how stretching makes you feel | alert and ready to go |
| most of it is stored in the subcutaneous layer of skin | body fat |
| a type of exercise that uses large amount of oxygen; benefits the heart and lungs | aerobics |
| the cardiac muscle | heart |
| the amount of time needed for aerobic exercise | at least 20-30 minutes |
| any physical activity | exercise |
| it increases the more muscles are used | strength |
| being 20% or more overweight | obesity |
| number of bones in your body | 206 |
| amount of bones in your foot | 1/4 the # of the bones in your body |
| where red blood cells are produced | bone marrow |
| a cage that protects your internal organs | ribs |
| the longest muscle in your body | sartorius |
| a facial muscle that helps you chew | masseter |
| your calf muscle | gastrocnemius |
| a muscle that helps you raise your arms | deltoid |
| located in the back of your upper legs | hamstring |
| your chest muscles | pectorals |
| muscles in the front of your upper legs | quadriceps |
| the muscle that causes your lungs to expand | diaphragm |
| muscles of the abdomen | abdominals |
| the tendon which connects your calf muscle to the back of the heel | Achilles tendon |
| the breastbone | sternum |
| protects your brain | skull |
| the longest bone | femur |
| the finger and toe bones | phalanges |
| the kneecap | patella |
| the shinbone | tibia |
| the calf bone | fibula |
| the collarbone | clavicle |
| the wrist bones | carpals |
| the tailbone | coccyx |
| the shoulder blade | scapula |
| the long bones of the foot | metatarsals |
| help you stand straight or bend | vertebrae |
| a bone of the upper arm | humerus |
| continuous exercises that help the body produce oxygen | aerobics |
| air sacs in the lungs | alveoli |
| the organ in which the exchange of oxygen and carbon dioxide occurs | lungs |
| the muscle which causes the lungs to expand | diaphragm |
| the hairllike structures in the air passageways | cilia |
| the two branches at the lower end of the windpipe | bronchi |
| a growth of tissue at the back of the nasal passage which helps fight infection | adenoids |
| a growth of tissue at the back of the throat which helps fight infection | tonsils |
| a small bronchial tube | bronchiole |
| the windpipe | trachea |
| the throat | pharynx |
| cavities in the thick bones of the face | sinuses |
| the voice box | larynx |
| two words used to describe alveoli | air sacs |
| a tiny flap of cartilage that covers the trachea during swallowing | epiglottis |
| where food enters the body | mouth |
