Musculoskeletal System - Part One

The

Musculoskeletal System - Part One!

Multiple Choice

The skeletal system is made up of how many bones?

• 359

• 206

• 510

• 99

Multiple Choice

There are close to _____ muscles in your body.

• 100

• 300

• 400

• 650

Multiple Choice

VOLUNTARY means something is done on purpose with full control.

INVOLUNTARY means ...

• something that is done without control

• something controlled by another person

• something that is done no matter what

• something that is always happening

MUSCULAR SYSTEM

What is the muscular system?

Your body has more than 650 muscles. This is almost half of your weight! The muscular system works with the skeletal system to help you move. Unlike other tissues in your body, your muscles are able to contract and relax.

The muscles that bend your joints work in pairs. When one of these muscles contracts, its partner relaxes. Then, they switch.

Contract

vs Relax

There are three different types of muscles in your body: skeletal, smooth, and cardiac. Skeletal

muscles connect to bones and help you move. You are able to control these muscles. Smooth muscles are muscles you can’t control. When you swallow food, smooth muscles move

food towards your stomach. It also carries blood around your

body. Cardiac muscle works all of the time and helps your heart

beat.

Multiple Choice

Muscles that bend your joints work in _____. When one of these muscles contracts, it's partner relaxes. Then, they switch.

• opposites

• pairs

• turns

• repetition

Multiple Choice

Skeletal muscles connect muscles to _____

• organs

• bones

• muscles

• your heart

Multiple Choice

Some muscles only move if we make them. That is voluntary! Examples are talking and walking. Some muscles work on their own without us telling them to, like the muscles around your heart. Muscles pumping your heart are called...

• Skeletal muscles

• Cardiac muscles

• Smooth muscles

• Body muscles