Ch. 19 T/F GRADE A Q&A
True - (correct answer)The adjustment of blood flow to each tissue in proportion to its
requirements at any point in time is termed autoregulation.
False - (correct answer)Arterial pressure in the pulmonary circulation is much higher
than in the systemic circulation because of its proximity to the heart.
False - (correct answer)Osmotic pressure is created by the presence in a fluid of small
diffusible molecules that easily move through the capillary membrane.
True - (correct answer)The carotid sinus reflex protects the blood supply to the brain,
whereas the aortic reflex is more concerned with maintaining adequate blood pressure
in the systemic circuit as a whole.
True - (correct answer)The pulmonary circulation does not directly serve the metabolic
needs of body tissues.
True - (correct answer)An obstruction in the superior vena cava would decrease the flow
of blood from the head and neck to the heart.
True - (correct answer)Arteries supplying the same territory are often merged with one
another, forming arterial anastomoses
True - (correct answer)An increase in blood viscosity will cause an increase in
peripheral resistance
True - (correct answer)Whereas diffusion is more important for solute exchange
between plasma and interstitial fluid, bulk flow is more important for regulation of the
relative volumes of blood and interstitial fluid.
True - (correct answer)The adjustment of blood flow to each tissue in proportion to its
requirements at any point in time is termed autoregulation.
False - (correct answer)Arterial pressure in the pulmonary circulation is much higher
than in the systemic circulation because of its proximity to the heart.
False - (correct answer)Osmotic pressure is created by the presence in a fluid of small
diffusible molecules that easily move through the capillary membrane.
True - (correct answer)The carotid sinus reflex protects the blood supply to the brain,
whereas the aortic reflex is more concerned with maintaining adequate blood pressure
in the systemic circuit as a whole.
True - (correct answer)The pulmonary circulation does not directly serve the metabolic
needs of body tissues.
True - (correct answer)An obstruction in the superior vena cava would decrease the flow
of blood from the head and neck to the heart.
True - (correct answer)Arteries supplying the same territory are often merged with one
another, forming arterial anastomoses
True - (correct answer)An increase in blood viscosity will cause an increase in
peripheral resistance
True - (correct answer)Whereas diffusion is more important for solute exchange
between plasma and interstitial fluid, bulk flow is more important for regulation of the
relative volumes of blood and interstitial fluid.
