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8 th Grade Health
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1. How do my muscles work? 2. How can I get stronger?
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Students will… review location and function of basic muscles discover how a strong muscular system affects health, performance and appearance Recognize the relationship between an active lifestyle and a healthy diet in the development of a strong muscular system
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Students will… Name the location and function of basic muscles of the human anatomy Describe how an active lifestyle with exercise promotes muscle growth Explain how a healthy diet is necessary for a strong muscular system
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Instructions: 1. Number your paper 1-11 2. Write the NAME of the muscle next to the number on the diagram on the following slide 2-3 minutes
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Muscle Names Abdominals Biceps Deltoids Gastrocnemius Gluteals Hamstrings Latissimus Dorsi Pectorals Quadriceps Trapezius Triceps 1 2 4 3 8 7 6 5 9 11 10
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Follow along to the video about how the skeletal system and muscular system are related. Do you remember the skeletal system from 5 th grade?
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1. Cardiac Muscle 2. Smooth Muscle 3. Skeletal Muscle
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1. Involuntary automatic 2. Voluntary we control the movement
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Control: Involuntary Appearance: Striped Location: Only in the heart
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Control: Involuntary Appearance: Smooth Location: Digestive System Blood vessel walls
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Control: Voluntary Appearance: Striated Location: Attached to bones
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Read Muscles for Life Student introduction (3.26) Complete the worksheet as you read along If you finish early, get out a book or other homework as you wait patiently for the class to move on together 15-20 minutes
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Movement Assists in: Breathing, digestion, and pumping of the heart
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Provides long-term health benefits Enhances performance in activities Provides improvements in appearance
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Flexors decrease angle at joint Extensors increase angle at joint
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Skeletal Muscles: Working in Pairs
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Adductors towards center of body Abductors away from center of body
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Allows a person to… perform daily daily activities with greater ease (muscular strength) enhance quality of life by accomplishing more (muscular endurance) Increase in bone density = decrease risk of osteoporosis improve posture and alignment to reduce low back problems decrease risk of injury caused by everyday mishaps
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Muscles get stronger according to the amount of stress or work that is placed on them. Resistance training increases: Muscular strength, muscular endurance, power, speed, agility, coordination and balance
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Body Composition = The percentage of fat-free mass vs. fatt mass Muscle mass burns calories! Improved appearance leads to higher self- esteem
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Abdominals Biceps Deltoids Gastrocnemius Gluteals Hamstrings Latissiumus Dorsi Pectorals Quadriceps Trapezius Triceps
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DELTOID BICEPS PECTORALS (PECS) ABDOMINALS QUADRICEPS (QUADS)
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LATISSIMUS DORSI (LATS) TRICEPS GLUTEULS HAMSTRINGS GASTROCNEMIUS TRAPEZIUS
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WARM UP Finish filling in the location of the muscles on your circuit worksheet and answer the following questions What is the function of the muscular system? Why is it important to have a healthy muscular system? How do muscles work in pairs to make a joint move? ex. Biceps and Triceps moving the elbow
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Strengthening Exercise LocationFunctionImportance Curl-ups, crunches Cover stomach Bend forward at the waist Prevents injury to back and internal organs
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Strengthening Exercise LocationFunctionImportance Bicep curls, chin-ups Front, top half of the upper arm Bend the elbow Carrying your books, water skiing or wake boarding
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Strengthening Exercise LocationFunctionImportance Lateral raises, shoulder press shoulderMoves upper arm Throw a ball, do jumping jacks, paint a house
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Strengthening Exercise LocationFunctionImportance Calf raisesBack of lower leg Point the toesJump, climb stairs, walk
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Strengthening Exercise LocationFunctionImportance Squats, lungesButtocksMoves thigh backwards Jump, walk, climb stairs or hills Squats
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Strengthening Exercise LocationFunctionImportance Leg curl, lunges Back of upper leg Bend the kneeTo walk and run
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Strengthening Exercise LocationFunctionImportance Lat pull-down, seated row On the backAllows a person to pull Pull-ups, water ski, climb a tree Lat Pull- down
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Strengthening Exercise LocationFunctionImportance Push-ups, bench (chest) press ChestHelp person to push To push a lawn mower or shopping cart, play tennis
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Strengthening Exercise LocationFunctionImportance Leg extension, lunges Front part of upper leg Straightening the knee Walk, run, kick Leg Extension
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Strengthening Exercise LocationFunctionImportance Shoulder shrugs, Seated row, bent over row Upper and mid back Pull arms in and raise shoulders towards ears Lifting object or pulling them close to the body
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TRICEPS Strengthening Exercise LocationFunctionImportance Tricep extensions, push-ups Back of upper arm Straighten the elbow Throw a ball, push something away, shoot a basketball
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What is the function of the muscular system? Why is it important for me have a healthy muscular system? What is the location and function of the basic muscles of human anatomy?
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