Science Unit 3 bones and muscles

We have three main types of bones:

• short bones, flat bones and long bones.

• short bones, moveable bones and long bones.

• round bones, flat bones and long bones.

The elbow and the knee are...

• ligaments.

• fixed joints.

• moveable joints.

Our skeleton has more than ... bones.

• 2.200

• 2.000

• 200

Tags

NGSS.MS-LS4-2

Muscles contract in response to orders they receive from the...

• skeletal system.

• muscular system.

• nervous system.

Our ... protect the organs in the abdomen and help us to breathe.

• abdominal muscles

• long muscles

• circular muscles

The bones of the skeleton meet at...

• the bones.

• the muscles.

• the joints.

In the joints, pairs of ... muscles make opposite movements.

• antagonist

• pectoral

• abdominal

... are essential during childhood and adolescence to help our bones grow.

• Vitamins C and A

• Vitamins F and C

• Calcium and phosphorus

A ... occurs when one or more ligament is stretched.

• fracture

• sprain

• muscle contracture

We need to do activities outdoors because sunlight helps our body to produce...

• calcium naturally.

• vitamin D naturally.

• vitamin C naturally.