Temperature is considered a local regulator of blood flow with
warmth increasing blood flow into the tissue and cold decreasing
flow into the tissue. Using this information, explain the
cardiovascular changes that would occur if you immersed yourself,
from you neck down, in a hot tub for half an hour. Be sure to
include the following and use all appropriate formulas to assist
you in your answers: What is the initial local response at the skin
vascular beds? What local compensatory mechanism occurs here (if
any)? What happens as warmed blood from the skin circulates to
other tissues? What is/are the initial (short-term) global
responses? Include the effects on receptors monitoring global
responses? What receptors do the global compensatory mechanism work
on and what action do they produce? What longer-term compensations
are activated? Keeping your answers in mind, why are people with
heart conditions cautioned against staying in hot tubs longer than
10 minutes?