BMSC 208 - FINAL EXAM QUESTIONS &
ANSWERS|| 2025 LATEST UPDATE
Least likely to be part of the form, or structure of the aorta:
1. Elastic fibres in the aorta's wall allow it to expand to receive the high pressure blood
from the ventricle
2. The wall has many folds that divide the aorta into many small compartments to slow
the blood flow
3. A smooth lining keeps the blood flowing easily and quickly
4. Smooth muscle fibres can contract to help modify blood pressure - ANSWER 2. The
wall has many folds that divide the aorta into many small compartments to slow the
blood flow
Which of the following is the best example of homeostasis:
1. If you strain your eyes you might get a headache
2. If you consume too much water too quickly, your cells can swell and not function
correctly
3. If you overheat, you sweat more to lose heat and get back to a normal temperature
4. If you get cut, you lose blood - ANSWER 3. If you overheat, you sweat more to lose
heat and get back to a normal temperature
Which of the following advice for healthy living best reflects the effects of the Law of
Conservation?
1. Drink enough water each day to stay hydrated
2. Use it or lose it
3. Get up and go to bed at the same time each day
4. Don't eat more than you need to - ANSWER 2. Use it or lose it
Which of the following best summarizes the effect of negative feedback on
homeostasis?
1. Negative feedback usually has a negative or bad, result for the body
, 2. Negative feedback works only if a change take the body above the set point
3. Negative feedback reestablishes homeostasis when the body fluctuates away from
the set point
4. Negative feedback prevents any fluctuation away from the set point - ANSWER 3.
Negative feedback reestablishes homeostasis when the body fluctuates away from the
set point
Anatomy - ANSWER Study of body's structure
Physiology - ANSWER Study of how those structures function
Which of the following is true with regard to physiological control systems:
1. All variables will always be maintained at a constant value
2. Positive feedback will always lead to excessive damage
3. All of the body's variables are under the control of negative feedback loops
4. Negative feedback loops are more common that positive feedback loops in living
systems. Negative feedback loops are homeostatic; positive feedback loops are not. -
ANSWER 4. Negative feedback loops are more common that positive feedback loops in
living systems. Negative feedback loops are homeostatic; positive feedback loops are
not.
When blood pressure decreases, the hypothalamus will release corticotropic releasing
hormone (CRH) to the anterior pituitary. The anterior pituitary then releases
adrenocorticotropic hormone (ACTH), which will enter the blood and travel to the
adrenal gland. The adrenal gland will release aldosterone, which will travel to the
kidneys in order to enhance the retention of Na+ and water in order to reestablish a
normal blood pressure. When considering homeostatic control pathways, how many
integrators are in the scenario provided?
One
Three
Four
Two - ANSWER Three
Stimulus - ANSWER A detectable disturbance or change in the internal or external
enviornment
ANSWERS|| 2025 LATEST UPDATE
Least likely to be part of the form, or structure of the aorta:
1. Elastic fibres in the aorta's wall allow it to expand to receive the high pressure blood
from the ventricle
2. The wall has many folds that divide the aorta into many small compartments to slow
the blood flow
3. A smooth lining keeps the blood flowing easily and quickly
4. Smooth muscle fibres can contract to help modify blood pressure - ANSWER 2. The
wall has many folds that divide the aorta into many small compartments to slow the
blood flow
Which of the following is the best example of homeostasis:
1. If you strain your eyes you might get a headache
2. If you consume too much water too quickly, your cells can swell and not function
correctly
3. If you overheat, you sweat more to lose heat and get back to a normal temperature
4. If you get cut, you lose blood - ANSWER 3. If you overheat, you sweat more to lose
heat and get back to a normal temperature
Which of the following advice for healthy living best reflects the effects of the Law of
Conservation?
1. Drink enough water each day to stay hydrated
2. Use it or lose it
3. Get up and go to bed at the same time each day
4. Don't eat more than you need to - ANSWER 2. Use it or lose it
Which of the following best summarizes the effect of negative feedback on
homeostasis?
1. Negative feedback usually has a negative or bad, result for the body
, 2. Negative feedback works only if a change take the body above the set point
3. Negative feedback reestablishes homeostasis when the body fluctuates away from
the set point
4. Negative feedback prevents any fluctuation away from the set point - ANSWER 3.
Negative feedback reestablishes homeostasis when the body fluctuates away from the
set point
Anatomy - ANSWER Study of body's structure
Physiology - ANSWER Study of how those structures function
Which of the following is true with regard to physiological control systems:
1. All variables will always be maintained at a constant value
2. Positive feedback will always lead to excessive damage
3. All of the body's variables are under the control of negative feedback loops
4. Negative feedback loops are more common that positive feedback loops in living
systems. Negative feedback loops are homeostatic; positive feedback loops are not. -
ANSWER 4. Negative feedback loops are more common that positive feedback loops in
living systems. Negative feedback loops are homeostatic; positive feedback loops are
not.
When blood pressure decreases, the hypothalamus will release corticotropic releasing
hormone (CRH) to the anterior pituitary. The anterior pituitary then releases
adrenocorticotropic hormone (ACTH), which will enter the blood and travel to the
adrenal gland. The adrenal gland will release aldosterone, which will travel to the
kidneys in order to enhance the retention of Na+ and water in order to reestablish a
normal blood pressure. When considering homeostatic control pathways, how many
integrators are in the scenario provided?
One
Three
Four
Two - ANSWER Three
Stimulus - ANSWER A detectable disturbance or change in the internal or external
enviornment
