Homeostasis Flashcards
study exam 1
long term regulates what?
kidney and hormonal regulation
what is responsible for transporting O2 and CO2
metalloproteins
T/F hemoglobin and albumin are key in stabilizing pH
True
what does protein do in terms of buffering systems?
they are reactive side groups of amino acids able to donate or accept H+ ions
what are the external changes?
environment, nutritional, and welfare
T/F negative feedback is the least common feedback loop
False, it is the most common
what amplifies or enhances a physiological response rather than reversing it?
positive feedback loop
baroreceptors, vasodilation, and vasoconstriction are a part of what regulation?
short-term nervous system
what are the two feedback loops?
positive and negative
the pH range for most mammals is?
7.25-7.45
O2 and CO2 balance is primarily controlled by what?
respiration rate
what are the 9 key concepts of homeostasis?
feedback mechanism
temp regulation
pH regulation
fluid and electrolyte balance
glucose homeostasis
O2 and CO2 balance
blood pressure
waste management
hormonal regulation
pH regulation is being regulated by what two means?
buffering systems and compensation
what does Cl- do?
it plays significant role in maintaining acid-base balance
why must glucose concentrations be regulated?
it is vital for all cells
what does compensation mechanisms do?
it helps with respiratory regulation by exchanging CO2 from blood to the external environment, it also helps with renal regulation by excreting H+ or resorption of HCO3-
where does hormonal regulation happen?
in the pancreas
what are the two terms for blood pressure regulation?
short-term and long-term
what is homeostasis defined as?
the process by which the body maintains a stable environment despite external changes
what does K+ do?
essential for muscle contractions and neural communication
What two functions are optimal for temp regulation?
enzymatic and cellular function
stable blood pressure is required for the delivery of what?
O2 and nutrients
why does Na2+ do?
regulates fluid levels
how does bicarbonate regulate?
regulates pH by shifting equilibrium via respiration and renal function
