BMSC 207 QUESTIONS & ANSWERS
Which of the following can function as integrators? - Answers -Endocrine gland, the
brain, an endocrine cell & a neuron
Which of the following would be one of the body's controlled variables? - Answers -
Heart rate, respiratory rate, body temperature, blood pressure & blood ph
Set point for a homeostatically controlled variable - Answers -The normal, 'desired'
value of the variable
Which of the following about homeostasis is false? - Answers -Blood glucose regulation
is not an example of homeostasis regulation.
the chemoreceptors in blood vessels that sense oxygen and carbon dioxide levels in the
blood are....? - Answers -Sensors
What allows the body to predict that a change is about to occur and start the response
loop in anticipation of the change ? - Answers -Feed forward control
A positive feedback mechanism is prevented from spiraling out of control by? -
Answers -A factor that removes stimulus & a factor that limits the systems ability to
response
When blood glucose levels increase, the beta cells of the pancreas will sense this
increase and release insulin, which will target the liver and cells of the body in order to
bring glucose levels back down within homeostatic range. What role does the pancreas
play in this homeostatic control pathway? - Answers -Integrator & sensor
Which of the following is true with regard to physiological control systems? - Answers -
Negative feedback loops are more common than positive feedback loops in living
systems. Negative feedback loops are homeostatic, positive feedback loops are not.
Define a stimulus - Answers -Detectible disturbance or change in the internal or
external environment
Which of the following can function as integrators? - Answers -Endocrine gland, the
brain, an endocrine cell & a neuron
Which of the following would be one of the body's controlled variables? - Answers -
Heart rate, respiratory rate, body temperature, blood pressure & blood ph
Set point for a homeostatically controlled variable - Answers -The normal, 'desired'
value of the variable
Which of the following about homeostasis is false? - Answers -Blood glucose regulation
is not an example of homeostasis regulation.
the chemoreceptors in blood vessels that sense oxygen and carbon dioxide levels in the
blood are....? - Answers -Sensors
What allows the body to predict that a change is about to occur and start the response
loop in anticipation of the change ? - Answers -Feed forward control
A positive feedback mechanism is prevented from spiraling out of control by? -
Answers -A factor that removes stimulus & a factor that limits the systems ability to
response
When blood glucose levels increase, the beta cells of the pancreas will sense this
increase and release insulin, which will target the liver and cells of the body in order to
bring glucose levels back down within homeostatic range. What role does the pancreas
play in this homeostatic control pathway? - Answers -Integrator & sensor
Which of the following is true with regard to physiological control systems? - Answers -
Negative feedback loops are more common than positive feedback loops in living
systems. Negative feedback loops are homeostatic, positive feedback loops are not.
Define a stimulus - Answers -Detectible disturbance or change in the internal or
external environment
