Muscular system

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Grade 4

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Muscular System

How many muscles have you

got?

You have got more than 600 muscles!

• She has got more than 600 muscles.

• He has got more than 600 muscles.

ARE MUSCLES RIGID or

FLEXIBLE?

MUSCLES ARE FLEXIBLE!

MUSCLES GIVE YOU STRENGTH!

• YOU CAN LIFT.

• YOU CAN PULL.

INVOLUNTARY MUSCLES

You CAN´T CONTROL this type of muscle.

INVOLUNTARY MUSCLES

EyesStomachIntestines

UterusBladder

VOLUNTARY MUSCLES

You CAN CONTROL this type of muscle.

-The Face, Arms, and Legs have got voluntary muscles.

Voluntary MusclesYour brain sends messages

to 'contract' or 'relax ' muscles.

Major Muscles

Left Picture BICEPS

CONTRACTEDRight PictureBICEPS

RELAXED

Abdominals

• They are below the ribcage.• They are called abs.

Quadriceps

• You can ride a bike and run thanks to these muscles.

Biceps

• They are in your arms.

Gluteus

• When you sit in your chair you are sitting on your gluteus muscles

Pectorals

• Body builders have large pecs.

Deltoids

• Help you move your shoulders.• You can swing a baseball bat.• You can shrug your shoulders.

You can help your muscles stay strong and healthy by exercising every day.

KEEP MUSCLES HEALTHY WITH EXERCISE!!!