Which point does the chapter make about "Cervical vertebra Thoracic vertebra" in Digestive And Excretory System?
Regular physical exercise has a positive effect on circulation.
Cervical vertebra Thoracic vertebra Lumbar vertebra Intervertebral disc Sacrum Coccyx Fig.
But an athlete's heart rate may be found to be much lower at rest.
It also transports hormones and minerals required for the body.