B1a Joints

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Joints that make you move

The joints

Learn by heart

freely movable joints

Pivot joints (ulna and radius)

Ball-and-socket joints (like it says)

Hinge joints- (like a door)

ball and socket joint

pivot joint

rotating movement in one direction

Hinge joint

Moves in one direction

Like a door or window

HINGE JOINT

A type of freely moveable joints is:

1. fixed
2. intervertebral discs
3. fontanelle
4. hinge joint

What type of joints are the pivot, hinge and ball-and-socket joint?

1. Synovial joints
2. Fibrous joints
3. Cartilaginous joints
4. Sutures

Match the correct name and example to the correct joint.

Ball & socket

Hinge

Gliding

Pivot

Knee  

Shoulder

Carpels

Skull base

4.5  Muscles move the bones

Muscles can only contract

          - it becomes shorter and thicker

Some muscles need other muscles to relax

Muscles (voluntary or skeletal)

• Muscles are attached to bones by tendons 
• They constist of small fibres

Muscles and joints in a chicken wing

• Tendons are shiny white tissues at the end of the muscles that attach the muscle to the bones.