Which point does the chapter make about "exercise to the lungs" in Exercise Effects And Recovery?
For example, physical activities are based on motor movements and their co-ordination.
You have learnt in earlier classes that there are mainly three kinds of muscles.
Cervical vertebra Thoracic vertebra Lumbar vertebra Intervertebral disc Sacrum Coccyx Fig.
This provides exercise to the lungs and chest and as a result the size increases.