RIO BIO 202 EXAM SCRIPT 2025/2026 QUESTIONS WITH
ANSWERS GRADED A+
✔✔what the external iliac artery becomes on entry into the thigh - ✔✔femoral
✔✔major artery serving the arm - ✔✔brachial
✔✔supplies most of the small intestine - ✔✔superior mesenteric
✔✔join to form the inferior vena cava - ✔✔common iliac
✔✔an arterial trunk that has three major branches, which run to the liver, spleen and
stomach - ✔✔celiac trunk
✔✔major artery serving the tissues external to the skull - ✔✔external carotid
✔✔three veins serving the leg - ✔✔anterior tibial, fibular, posterior tibial
✔✔artery generally used to take the pulse at the wrist - ✔✔radial
✔✔describe continuous capillaries - ✔✔abundant in the skin and skeletal muscles
✔✔Which of the following describes blood vessels? - ✔✔arterial walls are generally
thicker and contain more elastic tissue than those of veins
✔✔Where sinusoidal capillaries are most abundant? - ✔✔lobes of the liver
✔✔modified capillary lined with phagocytes? - ✔✔sinusoid
✔✔capillary bed when the precapillary sphincters are closed? - ✔✔oxygenated blood
travels directly from the metarteriole to venule
✔✔peripheral resistance in a blood vessel - ✔✔It is inversely related to the diameter of
the blood vessel
✔✔blood pressure the highest - ✔✔arteries
✔✔main functions of renin and angiotensin II? - ✔✔When blood pressure falls, they
respond by vasoconstriction and an increase in blood pressure
✔✔factor that would influence blood pressure? - ✔✔excess red blood cell production
would increase blood pressure
, ✔✔monitoring changes in blood pressure? - ✔✔baroreceptors
✔✔regulates cerebral blood flow? - ✔✔intrinsic autoregulatory mechanisms
✔✔describe pulmonary veins? - ✔✔transport oxygenated blood to the left atrium of the
heart
✔✔Which of the following lists the path of blood flow within the systemic circulations? -
✔✔arteries, arterioles, capillary beds, venules, veins
✔✔Which of the following describes the pulmonary circulation? - ✔✔arteries carry
deoxygenated blood and veins carry oxygenated blood
✔✔What is a portal system? - ✔✔carries blood from one capillary bed to another
✔✔The gastric, pancreatic and splenic veins are all part of what circulation? -
✔✔hepatic portal
✔✔The hepatic portal vein is formed by the union of what two vessels? - ✔✔splenic
vein and the superior mesenteric vein
✔✔Which of the following vessels are involved in the pulmonary circulation? -
✔✔pulmonary trunk, alveoli, left and right pulmonary veins
✔✔Which of the following describes hypovolemic shock? - ✔✔It is the type of shock in
which there has been a large scale loss of blood
✔✔Which of the following is associated with varicose veins? - ✔✔inflammation
✔✔Which of the following describes the flow of lymph? - ✔✔in one direction towards the
heart
✔✔Which of the following describes the function of the lymph system? - ✔✔returning
fluid and proteins to the blood circulation
✔✔What vessel receives lymph from most of the body? - ✔✔thoracic duct
✔✔What lymph vessel receives lymph drainage from the lower limbs? - ✔✔cysterna
chyli
✔✔Which of the following describes lymph capillaries? - ✔✔more permeable than blood
capillaries
ANSWERS GRADED A+
✔✔what the external iliac artery becomes on entry into the thigh - ✔✔femoral
✔✔major artery serving the arm - ✔✔brachial
✔✔supplies most of the small intestine - ✔✔superior mesenteric
✔✔join to form the inferior vena cava - ✔✔common iliac
✔✔an arterial trunk that has three major branches, which run to the liver, spleen and
stomach - ✔✔celiac trunk
✔✔major artery serving the tissues external to the skull - ✔✔external carotid
✔✔three veins serving the leg - ✔✔anterior tibial, fibular, posterior tibial
✔✔artery generally used to take the pulse at the wrist - ✔✔radial
✔✔describe continuous capillaries - ✔✔abundant in the skin and skeletal muscles
✔✔Which of the following describes blood vessels? - ✔✔arterial walls are generally
thicker and contain more elastic tissue than those of veins
✔✔Where sinusoidal capillaries are most abundant? - ✔✔lobes of the liver
✔✔modified capillary lined with phagocytes? - ✔✔sinusoid
✔✔capillary bed when the precapillary sphincters are closed? - ✔✔oxygenated blood
travels directly from the metarteriole to venule
✔✔peripheral resistance in a blood vessel - ✔✔It is inversely related to the diameter of
the blood vessel
✔✔blood pressure the highest - ✔✔arteries
✔✔main functions of renin and angiotensin II? - ✔✔When blood pressure falls, they
respond by vasoconstriction and an increase in blood pressure
✔✔factor that would influence blood pressure? - ✔✔excess red blood cell production
would increase blood pressure
, ✔✔monitoring changes in blood pressure? - ✔✔baroreceptors
✔✔regulates cerebral blood flow? - ✔✔intrinsic autoregulatory mechanisms
✔✔describe pulmonary veins? - ✔✔transport oxygenated blood to the left atrium of the
heart
✔✔Which of the following lists the path of blood flow within the systemic circulations? -
✔✔arteries, arterioles, capillary beds, venules, veins
✔✔Which of the following describes the pulmonary circulation? - ✔✔arteries carry
deoxygenated blood and veins carry oxygenated blood
✔✔What is a portal system? - ✔✔carries blood from one capillary bed to another
✔✔The gastric, pancreatic and splenic veins are all part of what circulation? -
✔✔hepatic portal
✔✔The hepatic portal vein is formed by the union of what two vessels? - ✔✔splenic
vein and the superior mesenteric vein
✔✔Which of the following vessels are involved in the pulmonary circulation? -
✔✔pulmonary trunk, alveoli, left and right pulmonary veins
✔✔Which of the following describes hypovolemic shock? - ✔✔It is the type of shock in
which there has been a large scale loss of blood
✔✔Which of the following is associated with varicose veins? - ✔✔inflammation
✔✔Which of the following describes the flow of lymph? - ✔✔in one direction towards the
heart
✔✔Which of the following describes the function of the lymph system? - ✔✔returning
fluid and proteins to the blood circulation
✔✔What vessel receives lymph from most of the body? - ✔✔thoracic duct
✔✔What lymph vessel receives lymph drainage from the lower limbs? - ✔✔cysterna
chyli
✔✔Which of the following describes lymph capillaries? - ✔✔more permeable than blood
capillaries
