15 results for “muscle”

1. The Human Body

   Muscles

   muscle can pull, and it cannot push. Everything else follows from that. Three kinds Skeletal muscle

   Article · 4 min read

   

2. The Human Body

   Lungs and Breathing

   muscle under the lungs, flattens downward; the muscles between the ribs lift the ribcage up and out; the chest

   Article · 4 min read

   

3. The Human Body

   The Heart and Blood

   muscle the size of your fist whose only job is to keep the blood moving, and the blood

   Article · 4 min read

   

4. The Human Body

   Digestion

   muscle contraction carries it down the oesophagus to the stomach in about eight seconds. This squeezing

   Article · 4 min read

   

5. The Human Body

   The Skeleton and Bones

   muscles need it and storing it when there is a surplus. Growth and healing Children's bones

   Article · 5 min read

   

6. Animals

   The Octopus

   muscle, and it can pour itself through any opening wider than its beak, the small hard

   Article · 3 min read

   

7. Animals

   Sharks

   muscles move or its heart beats. A shark can find a flatfish buried in sand by its heartbeat

   Article · 3 min read

   

8. Animals

   Mammals

   muscles, giraffes have necks two metres long with the same seven neck bones as a human

   Article · 4 min read

   

9. The Human Body

   Sleep and Dreams

   muscles of the body are temporarily paralysed, apart from those for breathing and moving the eyes

   Article · 3 min read

   

10. Animals

    Birds

    muscles that can make up a third of the body's weight. Birds breathe through a system

    Article · 3 min read

    

11. The Human Body

    Skin, Hair and Nails

    muscles pull your hairs upright, giving you goosebumps. Hair and nails Hair and nails are both

    Article · 3 min read

    

12. Space & the Universe

    Space Exploration

    muscle unless they exercise for hours each day. China now operates its own station, Tiangong. Robot

    Article · 3 min read

    

13. Chemistry

    The Chemistry of Life

    muscles move. Nucleic acids: the instructions DNA and RNA are nucleic acids, long chains of units

    Article · 3 min read

    

14. Life & Biology

    What Is Life? The Cell

    muscle cells that contract, nerve cells that carry signals, red blood cells that ferry oxygen, skin

    Article · 4 min read

    

15. The Human Body

    The Senses

    muscles and joints tell the brain where every part of the body is without looking, which

    Article · 4 min read