A certain type of heart-muscle disease thickens the heart muscle so that the heart chambers shrink in size. How would this disease affect a person over time, as the volume of the heart chambers continues to shrink?
The person would become more tired and weak because the volume of oxygenated blood pumped with each heartbeat would decrease over time.

The person would become more alert and anxious over time because the enlarged heart muscles would pump more blood to the brain than before the disease progressed.

The person would develop low blood pressure and feel faint because the he

Question

A certain type of heart-muscle disease thickens the heart muscle so that the heart chambers shrink in size. How would this disease affect a person over time, as the volume of the heart chambers continues to shrink?
The person would become more tired and weak because the volume of oxygenated blood pumped with each heartbeat would decrease over time.
		
The person would become more alert and anxious over time because the enlarged heart muscles would pump more blood to the brain than before the disease progressed.
		
The person would develop low blood pressure and feel faint because the he

anonymous · Answer

The person would become more alert and anxious over time because the enlarged heart muscles would pump more blood to the brain than before the disease progressed.
		
The person would develop low blood pressure and feel faint because the heart will be pumping less blood with each heartbeat.
		
The person would develop high blood pressure because the thicker heart muscles and smaller heart chamber volume would cause more pressure in the heart.

anonymous · Answer

Low blood pressure - less cardiac output to put it technically

anonymous · Answer

@soraz the condition you're describing is ventricular hypertrophy: http://en.wikipedia.org/wiki/Ventricular_hypertrophy. In particular, I would look at the physiology section because cardiology is frequently not all that simple: the body responds in complex and multi-pronged ways because preservation of blood flow (in particular to the brain) is crucial for life and while having less space for blood to fill in the ventricles (there are differences also between R and L ventricular hypertrophy) (and therefore less output) would seem to produce lower blood pressure, this is not what is found because the body preserves O2 delivery to the brain perhaps to the detriment of other organs. All of that is a long way of trying to convince you to go read about the disease - it's a fascinating one, in a fascinating organ... but if you'd just like the answer, google symptoms of ventricular hypertrophy and you'll have your answer.