VPHY 3100 Test 3 questions and
answers graded A+ updated
What are the 3 functions of the circulatory system? - correct answer
✔✔transportation, regulation, protection
Systemic blood flow - correct answer ✔✔from the time blood leaves left ventricle
until it returns to right atrium
Pulmonary Blood flow - correct answer ✔✔from the time the blood leaves the
right ventricle (and goes to lungs) until it returns to left atrium
What is the only artery with deoxygenated blood? - correct answer ✔✔pulmonary
artery
What is the only vein with oxygenated blood? - correct answer ✔✔pulmonary
vein
Most systemic arteries are ___________ - correct answer ✔✔oxygenated
Most systemic veins are _____________ - correct answer ✔✔deoxygenated
What is the vena cava? - correct answer ✔✔main vein going into the heart
,Why is a red blood cell a biconcave disc? - correct answer ✔✔more surface area
to increase oxygen
What % of blood is formed elements? - correct answer ✔✔45%
What % of blood is plasma? - correct answer ✔✔55%
Albumin - correct answer ✔✔plasma protein that creates osmotic pressure to
help draw water from tissues into capillaries to maintain blood volume and
pressure
Alpha and Beta Globulins - correct answer ✔✔transport lipids and fat-soluble
vitamins
Gamma Globulins - correct answer ✔✔antibodies (AKA immunoglobulins) that
function in immunity
Fibrinogen - correct answer ✔✔A blood protein essential to blood clotting. The
conversion of fibrinogen to its active form (fibrin) is among the final steps in clot
formation, and is triggered by thrombin.
Hemostasis - correct answer ✔✔cessation of bleeding when a blood vessel is
damaged
Steps of Hemostasis - correct answer ✔✔1. Platelet plug formation
2. Clot Formation
, 3. Tissue Repair
Intrinsic Clotting Factor Pathway - correct answer ✔✔Factor XII binds to exposed
collagen and initiates a cascade of other blood clotting factors
Extrinsic Clotting Factor Pathway - correct answer ✔✔Tissue factor (Factor III)
released from injured tissue initiates this pathway
How is fibrinogen converted to fibrin? - correct answer ✔✔Fibrinogen is
converted to fibrin via clotting factor cascade through 3 linked pathways
Infarct - correct answer ✔✔tissue that dies from hypoxia due to lack of blood flow
Thrombus - correct answer ✔✔abnormal clot that forms locally to block a blood
vessel
Embolus - correct answer ✔✔abnormal clot that forms somewhere (often in heart
or leg veins) and then travels elsewhere in bloodstream to block a distant blood
vessel)
Ischemia - correct answer ✔✔tissue that lacks adequate blood flow and thus
decreased oxygen
What are the 3 layers of a blood vessel? - correct answer ✔✔Tunica interna,
Tunica media, Tunica externa
answers graded A+ updated
What are the 3 functions of the circulatory system? - correct answer
✔✔transportation, regulation, protection
Systemic blood flow - correct answer ✔✔from the time blood leaves left ventricle
until it returns to right atrium
Pulmonary Blood flow - correct answer ✔✔from the time the blood leaves the
right ventricle (and goes to lungs) until it returns to left atrium
What is the only artery with deoxygenated blood? - correct answer ✔✔pulmonary
artery
What is the only vein with oxygenated blood? - correct answer ✔✔pulmonary
vein
Most systemic arteries are ___________ - correct answer ✔✔oxygenated
Most systemic veins are _____________ - correct answer ✔✔deoxygenated
What is the vena cava? - correct answer ✔✔main vein going into the heart
,Why is a red blood cell a biconcave disc? - correct answer ✔✔more surface area
to increase oxygen
What % of blood is formed elements? - correct answer ✔✔45%
What % of blood is plasma? - correct answer ✔✔55%
Albumin - correct answer ✔✔plasma protein that creates osmotic pressure to
help draw water from tissues into capillaries to maintain blood volume and
pressure
Alpha and Beta Globulins - correct answer ✔✔transport lipids and fat-soluble
vitamins
Gamma Globulins - correct answer ✔✔antibodies (AKA immunoglobulins) that
function in immunity
Fibrinogen - correct answer ✔✔A blood protein essential to blood clotting. The
conversion of fibrinogen to its active form (fibrin) is among the final steps in clot
formation, and is triggered by thrombin.
Hemostasis - correct answer ✔✔cessation of bleeding when a blood vessel is
damaged
Steps of Hemostasis - correct answer ✔✔1. Platelet plug formation
2. Clot Formation
, 3. Tissue Repair
Intrinsic Clotting Factor Pathway - correct answer ✔✔Factor XII binds to exposed
collagen and initiates a cascade of other blood clotting factors
Extrinsic Clotting Factor Pathway - correct answer ✔✔Tissue factor (Factor III)
released from injured tissue initiates this pathway
How is fibrinogen converted to fibrin? - correct answer ✔✔Fibrinogen is
converted to fibrin via clotting factor cascade through 3 linked pathways
Infarct - correct answer ✔✔tissue that dies from hypoxia due to lack of blood flow
Thrombus - correct answer ✔✔abnormal clot that forms locally to block a blood
vessel
Embolus - correct answer ✔✔abnormal clot that forms somewhere (often in heart
or leg veins) and then travels elsewhere in bloodstream to block a distant blood
vessel)
Ischemia - correct answer ✔✔tissue that lacks adequate blood flow and thus
decreased oxygen
What are the 3 layers of a blood vessel? - correct answer ✔✔Tunica interna,
Tunica media, Tunica externa
