A man had an accident which severed the nerves connecting his brain and his heart. Explain why he did not die from heart failure but his lifestyle was affected?

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pacorz's profile pic

pacorz | High School Teacher | (Level 3) Educator

Posted on

This would be a very unusual scenario, but it is possible. The heart is composed of cardiac muscle, which is different from the other types of muscle found in the body. Smooth muscle and skeletal muscle both require stimulation which originates in the nervous system in order to contract. Cardiac muscle, by contrast, is self-exciting. Consequently the heart can contract without receiving any instruction from the brain to do. Because of this, the man in question could survive, with his heart beating on its own.

However the nervous system controls the heart rate; in a normal person, the heart does not always beat at the same speed, but rather it speeds up and slows down in response to exercise, changes in body temperature, and emotional state changes. The man in this question would not be able to engage in vigorous exercise, because his heart rate would not rise to accommodate his body's increased oxygen needs.

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pranitingale's profile pic

pranitingale | Student, Grade 9 | (Level 1) Valedictorian

Posted on

♣ if this type of accident really happens it woulld affect the victim in many ways :-

♦ as said by the cardiac muscle are involuntary muscles and too different from other type of muscles.

♦ even though the nervous tissue are damaged, and no message is carried or recieved by the heart it will beat for a span of time, which will circulation to full body at greator extent.

♦ which can save his life for much time but too bleeding can be a cause of his death.

♦ but as we know heart due to composition of cardiac will live more longer than other organs,

♦ organs like lungs, brain and other essential organ will pave thier way to failure,

IF THIS HAPPENS AND LOT TREATED SOON, POSSIBLY VICTIM COULD DIE.

◘◘ I THINK HE MUSNT HAVE DIED DUE TO CARDIAC MUSCLES AND SOON TREATMENT OF PHISICIAN.

♦ BUT STILL IT COULD GIVE HIM MANY AILMENTS SUCH AS :-

    ○ PRALYSIS

    ○ EFFICIENCY OF DOING WORK COULD BE AFFECTED

    ○ DAMAGED OF NERVOUS TISSUE AFFECTING WORKING OF VARIOUS ORGANSA

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