Page 20 - Summary 6 2025
P. 20
Delta Modern Language Schools
Science department
Grade 6
1st term 2024- 2025
❹ Abdomen muscles
- You have two important abdomen voluntary
muscles on each side of your body known as waist
muscles.
- When you twist your waist to one side
1. The two muscles on that side contract together.
2. The two muscles on the other side relax.
Systems work together
1 Endocrine System
❖ Structure:
It consists of glands that secrete hormones that help the body gets ready
to respond in different situations.
❖ Function:
It controls the body temperature and the blood pressure.
❖ Its role during danger:
When the body faces a danger, it gets ready to fight
this danger or to run away from it, where:
1. The eyes see the danger
2. Send a signal to the brain,
3. The brain sends a signal to the body to
4. respond to that danger.
-The hormones affect other body systems to face that danger or to run
away from it, such as:
1. Contraction of muscles.
2. Increasing of breathing rate.
3. Increasing of heartbeats. 17
