Muscular system 101

by leanna C.

how do you define it?

    The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture, and circulates blood throughout the body.

What do you call a skeleton who won't work?

LAZY BONES!

TYPES OF MUSCLE

skeletal is voluntary, but others are involuntary.

fun facts!

1. We need 72 muscles to speak

2. It takes over 200 muscles working together just to walk!

3. Hardest muscle in the human body is the chin