4.4.2 muscles

• Biologie / Verzorging
• Middelbare school
• vmbo b
• Leerjaar 1

4.4.2 muscles

start task

1. Check if you have any questions about the homework (assignments 1-5).
2. Log in to LessonUp (use your first name).

Learning objective: After this lesson, you can:

- describe how muscles work.

1. When the arm bending muscle contracts , the stretching muscle ... 

2. When the arm bending muscle gets shorter, the stretching muscle gets ...

4. When the arm bending muscle gets longer, that happens because the stretching muscle gets...

3. When the arm bending muscle is relaxed, the stretching muscle is ...

contracts

relaxes

longer

shorter

plan

1. start task 

2. Quiz / review of homework

3. Complete insight exercises

Leerdoelen: Na deze les kun je:

- de werking van spieren beschrijven.

Learning objective: After this lesson, you can:

- describe how muscles work.

Open page 33.

1a.

Are muscles in the intestines part of the muscular system? 

Explain your answer.

Discuss in pairs.

1a.

1b. If you bend your arm, then:

1. only the biceps contracts
2. only the tendon contracts
3. both the biceps and the tendon contract

1c. Why do you get movement when a muscle contracts?

1d. When a muscle relaxes, 

it becomes                                 and 

longer

shorter

thicker

thinner

Muscles that work in opposite ways are called an ___________ pair.

3a. Which muscles do you use voluntary and which involuntary?

voluntary

involuntary

heart muscle

muscles in the skin

muscles in the stomach

muscles that bend your arm

muscles that bend a finger

muscles that make you kick a ball

3b. Muscles that you don’t move voluntarily are

1. organ muscles
2. skeletal muscles

3c. You move skeletal muscles

1. voluntarily
2. involuntarily

3d. Most organ muscles _________
attached to your bones.

1. are
2. are not

Compare with figure 1 on page 31.

What number does the muscle have in the image of a frog leg?

hamstring

calf muscle

anterior tibial muscle

quadriceps

1

2

3

4

Which muscles form an antagonistic pair?

Muscle 1 and 

Muscle 2 and 

1

2

3

4

Close your laptop, but stay in LessonUp!

Apply this knowledge

Now complete the insight exercises: 5 to 7, 

pages 35 and  36.

Finished? Check your work! Answers are in Classroom.

I can explain how muscles work.

😒🙁😐🙂😃

I can give examples of voluntary and involuntary muscle movements.

😒🙁😐🙂😃

Na de vakantie: PO Skelet

- tijdens 2 lessen

- je mag je boek erbij gebruiken (niet vergeten!)

- van tevoren namen van botten en gewrichten oefenen kan helpen.

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