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The Muscle System Webquest A. Think of the type of muscle associated with each of the following body parts. In the space provided, write the name of the type of muscle (smooth, skeletal, or cardiac) associated with that body part. Also tell whether that muscle is voluntary or involuntary. Common name of body part Thigh Upper arm Intestine Heart Calf Stomach Hand Blood vessels Uterus Neck Muscle associated Voluntary or involuntary 1. How many muscles are in the body? 2. How do muscles produce mechanical energy? 3. What happens when glucose is not available to muscles? 4. What happens when you “pull a muscle”? 5. What is the largest muscle of the body? 6. What is the busiest muscle of the body? B. Find the Interactive Human Body: http://www.bbc.co.uk/science/humanbody/body/factfiles/muscle_anatomy.shtml At the bottom of the page is "FLEX SOME MUSCLES" activity. Click on this link. Choose male or female. Click on the muscles in the box on the left. Read the description of this muscle in the box on the right. Click on the muscle on the right and drag it to the human body. Have your teacher initial when the diagram is completed. ______________________ C. Nine characteristics of muscle tissue are listed below. Identify the muscle tissue type described by choosing the correct response(s) from the key choices. Enter the appropriate term(s) or letter(s) of the key choice in the answer blank. Key Choices A. Cardiac B. Smooth C. Skeletal ___ 1. Involuntary ___ 2. Banded Appearance ___ 3. Longitudinally and circularly arranged layers ___ 4. Dense connective tissue packaging ___ 5. Figure-8 packaging of cells ___ 6. Coordinated activity to act as a pump ___ 7. Moves bones and the facial skin ___ 8. Referred to as the muscular system ___ 9. Voluntary D. Macroscopic Anatomy: fill in the blanks regarding the macroscopic understanding of muscles, joints, and bones. MUSCLE MOVEMENT A muscle can only do two things: 1. ______________________ Pull to get shorter. 2. ______________________ It can be pulled longer when another muscle pulls the other direction. A muscle can never __________________________________________________________ JOINT MOVEMENTS – Most joints move in two directions: 1. __________________To bend a joint. A muscle on one side of the joint contracts to do this. 2. __________________To straighten a joint. The opposing muscle of the joint contracts to do this. To move a joint, one muscle must ____________ while the other muscle__________________ HUMAN ARM MUSCLES AND BONES Bones: Upper Arm = _________________________ Forearm = ________________ and _____________________ Wrist = ______________________ Muscles: Flexes elbow = _____________________________ Straightens elbow = _________________________ Flexes wrist = ______________________________ Straightens wrist = __________________________ E MUSCLE MOTION For each muscle, fill in the chart. Use the following website to help you with exercise ideas if you need to. http://exercise.about.com/cs/exbeginners/a/begstrength.htm Muscle Biceps brachii Triceps brachii Deltoid Trapezius Pectoralis Latissiumus dorsii Rectus femoris Semitendinosus What Joint it Moves Flex or Extend? Exercise for this muscle
