Since these is no nerve supply, the heart would keep a normal rate. It would not be able to keep up with the demand for oxygen and nutrients. A heart without a nerve supply would not be viable.
our heart mostly affect from exercise
No. The heart receive dual innervation -Brad Medling
Edwin Frederick Hirsch has written: 'The innervation of the lung' -- subject(s): Innervation, Lungs 'The innervation of the vertebrate heart' -- subject(s): Heart, Innervation, Nervous system, Vertebrates
lowers the chance of heart disease
exercise and weight
it doesnt
Cardiovascular or "Cardio" exercise increases heart rate. The word root "cardio-" means "heart".
It makes the heart pump slightly faster
Vagus nerve
yes
Yes, your heart rate does affect the number of calories you burn during exercise. When your heart rate is higher, you typically burn more calories because your body is working harder.
basically your heart rate increase as the duration of excersise increases.