What are some feedback mechanisms that influence the homeostasis of blood flow?

answer:

Negative Feedback. Narrowing of surface blood vessels (vasoconstriction) decreases the flow of heat to the skin. Shivering commences, increasing production of heat by the muscles. Adrenal glands secrete stimulatory hormones such as norepinephrine and epinephrine to increase metabolic rates and hence heat production.

Explanation:

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after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.