Course MSCI 522 (Spring 2025) - Principles of Physiology II
Lesson Blood Pressure Regulation
Overview
In relation to blood pressure regulation, what do you think is meant by short-term and
long-term?
I think short-term is related to minor changes and long term have to do with more
major changes.
Sort the following into whether they will a ect short-term blood pressure, long-term blood
pressure, or both.
Short-term Long-term
Dehydration Standing High salt diet
Hemorrhage Sprinting Dehydration
High salt diet
Sprinting
Standing
Both
Hemorrhage
, Complete the diagram below to illustrate the steps that occur in the baroreceptor re ex,
in response to standing.
Arterial blood Baroreceptor Detection by
pressure activation cardiovascular
center
Electrical impulses Heart rate and
Vasoconstriction
sent to the brain stroke volume
Arterial blood
pressure
Heart rate and
stroke volume
Baroreceptor
activation
Vasoconstriction
Detection by Electrical impulses
cardiovascular sent to the brain
center
Long-term regulation
What determines blood volume?
The amount of sodium chloride (NaCl) in the extracellular uid.
The concentration of sodium chloride (NaCl) in the extracellular uid.