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BIOS 255 edapt week 3 Questions and Answers
100% Pass
select all that are true of capillaries - ANSWER ✔✔-- fenestrated capillaries allow for fast filtration and
absorption
- sinusoidal capillaries are found in bone marrow
- continuous capillaries are the most common type
which of the following is true of vasoconstriction - ANSWER ✔✔-- decrease in blood flow and an increase
in blood pressure
under the microscope, a blood vessel is observed to have a relatively thin wall, a large lumen, is
collapsed, and contains a thick tunica externa. this is probably a(n): - ANSWER ✔✔-- vein
which of the following is not a mechanism that assists venous return - ANSWER ✔✔-- an increase in
peripheral resistance
select all that occur during bulk flow across a typical capillary - ANSWER ✔✔-- reabsorption
- movement of fluids and solutes into the capillary
- filtration
- movement of fluids and solutes out of the capillary
the blood flow to the body organs ____ - ANSWER ✔✔-- is inversely proportional to the resistance of the
arterioles leading to them
the ____ the radius of a vessel , the greater the resistance - ANSWER ✔✔-- smaller
Created by Grace Amelia © 2025, All Rights Reserved.
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as the radius of a vessel increases, the resistance ___ - ANSWER ✔✔-- decreases
as the resistance decreases, the blood flow _____ - ANSWER ✔✔-- increases
the _____ the radius of a vessel, the less the resistance - ANSWER ✔✔-- larger
blood flow to an organ will decrease with ______ - ANSWER ✔✔-- vasoconstriction
blood flow to an organ will increase with _______ - ANSWER ✔✔-- vasodilation
a patient's systolic pressure is 130 and diastolic pressure is 90. what is the pulse pressure - ANSWER ✔✔--
40 mmHg
capillaries have only a _____ - ANSWER ✔✔-- tunica intima
continuous capillaries - ANSWER ✔✔-- vessels that allow only small nutrients through via simple
diffusion
sinusoidal capillaries - ANSWER ✔✔-- vessels that lack a basement membrane and are typically found in
red bone marrow and liver
fenestrated capillaries - ANSWER ✔✔-- vessels that are ideal for moving large nutrients to be absorbed
and wastes to be filtered
elastic arteries - ANSWER ✔✔-- found close to the heart
- largest of the arteries
- tunica media composed of smooth muscle and elastic connective tissue
muscular arteries - ANSWER ✔✔-- second largest of the arteries
- found far from the heart
- tunica media composed of smooth muscle
Created by Grace Amelia © 2025, All Rights Reserved.
BIOS 255 edapt week 3 Questions and Answers
100% Pass
select all that are true of capillaries - ANSWER ✔✔-- fenestrated capillaries allow for fast filtration and
absorption
- sinusoidal capillaries are found in bone marrow
- continuous capillaries are the most common type
which of the following is true of vasoconstriction - ANSWER ✔✔-- decrease in blood flow and an increase
in blood pressure
under the microscope, a blood vessel is observed to have a relatively thin wall, a large lumen, is
collapsed, and contains a thick tunica externa. this is probably a(n): - ANSWER ✔✔-- vein
which of the following is not a mechanism that assists venous return - ANSWER ✔✔-- an increase in
peripheral resistance
select all that occur during bulk flow across a typical capillary - ANSWER ✔✔-- reabsorption
- movement of fluids and solutes into the capillary
- filtration
- movement of fluids and solutes out of the capillary
the blood flow to the body organs ____ - ANSWER ✔✔-- is inversely proportional to the resistance of the
arterioles leading to them
the ____ the radius of a vessel , the greater the resistance - ANSWER ✔✔-- smaller
Created by Grace Amelia © 2025, All Rights Reserved.
, 2|Page
as the radius of a vessel increases, the resistance ___ - ANSWER ✔✔-- decreases
as the resistance decreases, the blood flow _____ - ANSWER ✔✔-- increases
the _____ the radius of a vessel, the less the resistance - ANSWER ✔✔-- larger
blood flow to an organ will decrease with ______ - ANSWER ✔✔-- vasoconstriction
blood flow to an organ will increase with _______ - ANSWER ✔✔-- vasodilation
a patient's systolic pressure is 130 and diastolic pressure is 90. what is the pulse pressure - ANSWER ✔✔--
40 mmHg
capillaries have only a _____ - ANSWER ✔✔-- tunica intima
continuous capillaries - ANSWER ✔✔-- vessels that allow only small nutrients through via simple
diffusion
sinusoidal capillaries - ANSWER ✔✔-- vessels that lack a basement membrane and are typically found in
red bone marrow and liver
fenestrated capillaries - ANSWER ✔✔-- vessels that are ideal for moving large nutrients to be absorbed
and wastes to be filtered
elastic arteries - ANSWER ✔✔-- found close to the heart
- largest of the arteries
- tunica media composed of smooth muscle and elastic connective tissue
muscular arteries - ANSWER ✔✔-- second largest of the arteries
- found far from the heart
- tunica media composed of smooth muscle
Created by Grace Amelia © 2025, All Rights Reserved.
