Effects of Physical Activities on Human Body
Class 10 · Health and Physical Education
4 ideas in Class 10 Health and Physical Education, explained in plain words, with games and quizzes to practise.
Muscles at Work
Part of: Active body
All motion flows from contracting muscles fastened to bones by tendons, while bones meet bones through ligaments. Skeletal striated muscles obey will in limbs and neck, smooth unstriated muscles silently line the food canal, and cardiac muscle beats the heart without pause. Fibre cells slide actin past myosin on brain signals, burning food with oxygen.
Why it matters. Knowing teams and tethers explains every move made.
Try it in two minutes
- Name three muscle kinds.
- Say what links what.
- Name two sliding proteins.
Try at home. Sort body movements voluntary or not.
Stronger Muscles
Part of: Active body
Trained muscles swell up to sixty percent, famously in tennis arms, staying half-taut as tone from steady nerve signals. Exercise multiplies contractile proteins and feeding capillaries while toughening ligaments and tendons against strain. Strength then shows as marathoner contraction speed and weightlifter load power, though spent oxygen plus gathered lactic acid still summon fatigue.
Why it matters. Trained fibres prove effort visibly and usefully.
Try it in two minutes
- Quote the size gain.
- Define muscle tone.
- Name two strength proofs.
Try at home. Compare arm muscles before and after play.
Heart and Breath
Part of: Active body
Training thickens heart walls and opens idle capillaries while adding red cells and haemoglobin. Resting pulse sits near seventy-two beats but athletic hearts idle lower, pumping more per stroke, called stroke volume. Lungs answer with faster breathing, richer residual, tidal and vital air, and even Suryanamaskar boosts circulation.
Why it matters. Efficient pumps and lungs energise whole days.
Try it in two minutes
- Quote resting beats.
- Define stroke volume.
- Name three air gains.
Try at home. Track pulse before and after a run.
Systems in Sync
Part of: Active body
Heart, lungs, liver and kidneys headline vital organs. The heart drives digested food and breathed oxygen to cells, where they burn into ATP energy. Quicker reactions join the gains, and class tables log muscular performance rising with respiratory capacity in step.
Why it matters. Synced systems turn meals and air into action.
Try it in two minutes
- Name four vital organs.
- Trace food to energy.
- Note two activity gains.
Try at home. Name four vital organs and jobs.
What your child will practise
- Heart and Breath: Candy Quest (Flip and Match)
- Heart and Breath: Mission Control Quest (Collect the Answer)
- Muscles at Work: Lab Explorer Quest (Match It Up)
- Stronger Muscles: Space Quick Fire (Quick Fire)
- Systems in Sync: Desert Puzzle (Clue Puzzle)
- Quiz: Heart and Breath (8 questions)
- Quiz: Muscles at Work (8 questions)
- Quiz: Stronger Muscles (8 questions)
- Quiz: Systems in Sync (8 questions)