Unit 4: Support and locomotion B4

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Planning

•  See what you remember from last week
• B4: muscles
• Make exercises

Learning goals

• You can explain how the muscles work.
  
• You can give examples of voluntary and involuntary muscle movements.
  

But first... lets see what you remember from last week!

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Verbind de verbinding met het juiste plaatje. In plaatje 1 wordt het staartbeen bedoeld!

joint

sutures

fused vertebrae

cartilage

The socket bone and ball-shaped bone both have
a cartilage layer.

Explain why the cartilage is right there.

The joint of the shoulder is the same as the joint in the hip.

Explain why elderly people often have more damage of the cartilage layer in their hip joint than in their shoulder joint.

what is the joint with the most movement possible?

1. ball-and-socket joint
2. hinge joint
3. pivot joint

4.4 Muscles

Muscular system

Muscles let you stand up straight and move about. 

All the skeletal muscles in your body combined form the muscular system

Tendons

The muscle is attached to the bone by tendons (pezen). 

The point where the tendon is attached to the bone is called the attachment site (aanhechtingsplaats).

Muscles are able to contract, but tendons are not!

Bones move because of the muscle contractions.

Antagonistic pair

To move a bone, you always need two muscles: a flexor muscle and an extensor muscle. These two muscles have opposite effects.

= antagonistic pair

Flexor muscle = Buigspier

extensor muscle= Strekspier

organ muscle

In addition to the skeletal muscles, you also have muscles in your organs. These organ muscles move without you being aware of it.

For example:

-Heart

-muscles in your oesophagus, stomach, intestines

Tips for studying

Test Unit 4 Basic 1,2,3,4,+ 7:

• G1b: Wednesday 02/02
• V1a: Thursday 03/02
• V1c: Friday 04/02

1. Start with re-reading all basics!!!!! and fill in the summary (studiewijzer)
2. Check if you have made all the homework exercises, if not make them. (answers paperbook in studiewijzer)
3. Write down any questions you have so I can answer them in class. 
4. See if you know all the goals of the checklist. If not practice that part! (studiewijzer)
5. Make the test yourself of the basics if you have practiced enough.

Homework 

4.4 muscles

exercise: 1, 2, 3, 5, 7

Done?

Check if you have finished all of the exercises below:

B1: 1 tm 4 + 6

B2: 1,2,3,5

B3: 1,2,3,5

B7: 1 tm 4

Done?

2nd hour: Start preparing for test next week:

• Finish homework if you havent yet.

• Start with re-reading all basics!!!!! and fill in the summary (studiewijzer)

• Check if you have made all the homework exercises, if not make them. (answers paperbook in studiewijzer)

• See if you know all the goals of the checklist. If not practice that part! (studiewijzer)