8 th Grade Health 1. How do my muscles work? 2. How can I get stronger?

8th Grade Health

1. How do my muscles work?2. How can I get stronger?

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

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

Instructions:

1. Number your paper 1-112. Write the NAME of the muscle next to

the number on the diagram on the following slide

2-3 minutes

Muscle Names• Abdominals• Biceps• Deltoids• Gastrocnemius• Gluteals• Hamstrings• Latissimus Dorsi• Pectorals• Quadriceps• Trapezius• Triceps

1

2

4

38

7

6

5

9

11

10

Follow along to the video about how the skeletal system and muscular system are related.

Do you remember the skeletal system from 5th

grade?

1.Cardiac Muscle2.Smooth Muscle3.Skeletal Muscle

1. Involuntary automatic

2. Voluntary we control the movement

Control:Involuntary

Appearance:Striped

Location:Only in the heart

Control:Involuntary

Appearance: Smooth

Location:Digestive SystemBlood vessel walls

Control:Voluntary

Appearance:Striated

Location:Attached to bones

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

Movement

Assists in:Breathing, digestion, and

pumping of the heart

Provides long-term health benefits

Enhances performance in activities

Provides improvements in appearance

Flexors decrease angle at

joint

Extensors increase angle at

joint

Skeletal Muscles: Working in Pairs

Adductors towards center of

body

Abductors away from center

of body

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

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

Body Composition = The percentage of fat-free mass vs. fatt mass

Muscle mass burns calories!

Improved appearance leads to higher self-esteem

1. Abdominals2. Biceps3. Deltoids4. Gastrocnemius5. Gluteals6. Hamstrings7. Latissiumus Dorsi8. Pectorals9. Quadriceps10.Trapezius11.Triceps

DELTOID

BICEPS

PECTORALS (PECS)

ABDOMINALS

QUADRICEPS(QUADS)

LATISSIMUS DORSI(LATS)

TRICEPS

GLUTEULS

HAMSTRINGS

GASTROCNEMIUS

TRAPEZIUS

WARM UPFinish 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

Strengthening Exercise

Location Function Importance

Curl-ups, crunches

Cover stomach

Bend forward at the waist

Prevents injury to back and internal organs



Bicep curls, chin-ups

Front, top half of the upper arm

Bend the elbow

Carrying your books, water skiing or wake boarding



Lateral raises, shoulder press

shoulder Moves upper arm

Throw a ball, do jumping jacks, paint a house



Calf raises Back of lower leg

Point the toes Jump, climb stairs, walk



Squats, lunges

Buttocks Moves thigh backwards

Jump, walk, climb stairs or hills

Squats



Leg curl, lunges

Back of upper leg

Bend the knee

To walk and run

StrengtheningExercise


Lat pull-down, seated row

On the back Allows a person to pull

Pull-ups, water ski, climb a tree

Lat Pull-down


Location Function

Importance

Push-ups, bench (chest) press

Chest Help person to push

To push a lawn mower or shopping cart, play tennis



Leg extension, lunges

Front part of upper leg

Straightening the knee

Walk, run, kick

Leg

Extension



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



Tricep extensions, push-ups

Back of upper arm

Straighten the elbow

Throw a ball, push something away, shoot a basketball

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?

Documents

8 th Grade Health 1. How do my muscles work? 2. How can I get stronger?