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Name _____________________________

Date ___________________

Select the definition that most nearly defines the given word.

1.   lactic acid    fast and constant physical activity that increases the oxygen supply to the muscles    waste produced when muscles contract. It can cause cramps.    cells that carry signals from the brain    muscles that have a tendon at each end, but at one end are attached by fascicles

2.   skeletal muscles    muscle such as the biceps muscle    painful muscle condition that can result if you use a muscle too much and tear muscle fibers    muscles that work with bones of the skeleton. They look striated under the microscope. They help you to walk, run, jump, or kick.    muscle that bends part of the body

3.   muscular system    bundles of long, thin cells that make up muscles    collection of organs whose primary function is movement    weaker muscle, but does allow for a wide range of movement. One moves the hyoid bone in the throat.    striped

4.   contract    strong muscle that moves up and down as you breathe    to get shorter    muscle which straightens part of the body    muscles which have bundles of muscle fibers arranged in rings around an opening. They control the size of the opening such as the anus or lip movement.

5.   cardiac muscle    action you can control. Skeletal muscles are voluntary muscles.    tissue connecting muscles to bones    the heart. It constantly contracts and relaxes to pump blood around your body. It is involuntary. It never gets tired.    to get shorter

6.   striated    striped    biggest muscle in the body. It is located in the buttocks.    action you can't control. Smooth muscles and cardiac muscle are involuntary muscles.    involuntary muscles which line the stomach and intestinal walls. They help move food through the digestive system. They also help the pupil change sizes in response to light.

7.   muscle fibers    involuntary muscles which line the stomach and intestinal walls. They help move food through the digestive system. They also help the pupil change sizes in response to light.    physical activity, such as push-ups or curl-ups, which is the most effective exercise to develop the size and strength of skeletal muscles    bundles of long, thin cells that make up muscles    muscles that work with bones of the skeleton. They look striated under the microscope. They help you to walk, run, jump, or kick.

8.   voluntary    biggest muscle in the body. It is located in the buttocks.    weaker muscle, but does allow for a wide range of movement. One moves the hyoid bone in the throat.    the heart. It constantly contracts and relaxes to pump blood around your body. It is involuntary. It never gets tired.    action you can control. Skeletal muscles are voluntary muscles.

9.   flexor    painful muscle condition that can result if you use a muscle too much and tear muscle fibers    muscle that bends part of the body    bundles of long, thin cells that make up muscles    cells that carry signals from the brain

10.   aerobic exercise    fast and constant physical activity that increases the oxygen supply to the muscles    involuntary muscles which line the stomach and intestinal walls. They help move food through the digestive system. They also help the pupil change sizes in response to light.    waste produced when muscles contract. It can cause cramps.    muscle such as the biceps muscle

11.   strained muscle    action you can't control. Smooth muscles and cardiac muscle are involuntary muscles.    muscles that have a tendon at each end, but at one end are attached by fascicles    muscle that bends part of the body    painful muscle condition that can result if you use a muscle too much and tear muscle fibers

12.   pennate muscles    muscles that work with bones of the skeleton. They look striated under the microscope. They help you to walk, run, jump, or kick.    to get shorter    muscles that have a tendon at each end, but at one end are attached by fascicles    strong muscle that moves up and down as you breathe