Question

During strenuous exercise blood flow increases to skeletal muscles. This happens without the involvement of the nervous and endocrine systems. What kind of homeostasis regulation is this and why does it happen without input from the nervous and endocrine systems

Answer 1

Answer:

Depletion of ATP in the skeletal muscles to AMP results in the activation of AMPK which increase glucose uptake in the skeletal muscles cells. This effect is similar to that initiated by the insulin hormone. With the reduction of blood glucose in the blood stream, the liver will increase gluconeogenesis and glycogenolysis to release more glucose into the blood and blood flow is increased to supply sufficient oxygen and glucose to skeletal muscles for it to generate ATP (I am assuming exercise here refers to aerobic exercise). In this case, the homeostasis regulation involved is that of the blood glucose. It does not involve the nervous and endocrine systems as it is activated by the depletion of ATP in skeletal muscles itself.