CIRCULATORY SYSTEM EXAMS WITH 100%
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
What are the 3 ways the circulatory system changes? correct
answers
1. Diameter
2. Travel
3. Blood
Which way do arteries carry blood? correct answers
away from the heart.
Which way do veins carry blood? correct answers
towards the heart
Name the 4 types of circulation correct answers
1. pulmonary
2. systemic
3. hepatic portal
4. fetal
(optional to include: coronary)
What kind of blood enters the right atrium? correct answers
Deoxygenated blood because it is receiving blood from most
tissues of the body
What do tissues need blood for? correct answers
,CIRCULATORY SYSTEM EXAMS WITH 100%
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
They use it to make ATP and as a result produce CO2 as a waste
product
At the lungs, how does CO2 get into the lungs? correct answers
By diffusion through exhaling
In what blood vessel does oxygen diffuse into at the lungs?
correct answers
The right and left pulmonary veins, which empty into the left
atrium
Name the largest artery in the body correct answers
Aorta
In systemic circulation, what kind of blood is carried in arteries
and veins? correct answers
Arteries carry oxygenated, veins carry deoxygenated.
Describe hepatic portal circulation correct answers
Blood flow from the digestive organs to the liver
What kind of blood do the umbilical arteries carry? correct
answers
Mixed blood (oxy and deoxy)
, CIRCULATORY SYSTEM EXAMS WITH 100%
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
What kind of blood does the umbilical vein carry? correct
answers
Oxygenated
What kind of cells make up the blood vessel wall? correct
answers
Endothelial cells
Where are the endothelial cells that make up BV walls derived
from? correct answers
The embryonic layer called the mesoderm
What are the 3 layers of all BVs (except capillaries) from inner to
outer correct answers
1. tunica interna or intima
2. tunica media
3. tunica externa
What is vasoconstriction? And what layer of the blood vessel
controls it? correct answers
Narrowing of the lumen of the blood vessel, restricting blood
flow. Tunica media
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
What are the 3 ways the circulatory system changes? correct
answers
1. Diameter
2. Travel
3. Blood
Which way do arteries carry blood? correct answers
away from the heart.
Which way do veins carry blood? correct answers
towards the heart
Name the 4 types of circulation correct answers
1. pulmonary
2. systemic
3. hepatic portal
4. fetal
(optional to include: coronary)
What kind of blood enters the right atrium? correct answers
Deoxygenated blood because it is receiving blood from most
tissues of the body
What do tissues need blood for? correct answers
,CIRCULATORY SYSTEM EXAMS WITH 100%
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
They use it to make ATP and as a result produce CO2 as a waste
product
At the lungs, how does CO2 get into the lungs? correct answers
By diffusion through exhaling
In what blood vessel does oxygen diffuse into at the lungs?
correct answers
The right and left pulmonary veins, which empty into the left
atrium
Name the largest artery in the body correct answers
Aorta
In systemic circulation, what kind of blood is carried in arteries
and veins? correct answers
Arteries carry oxygenated, veins carry deoxygenated.
Describe hepatic portal circulation correct answers
Blood flow from the digestive organs to the liver
What kind of blood do the umbilical arteries carry? correct
answers
Mixed blood (oxy and deoxy)
, CIRCULATORY SYSTEM EXAMS WITH 100%
CORRECT VERIFIED ANSWERS UPDATED 2025/2026
BEST GRADED A+ FOR PASS
What kind of blood does the umbilical vein carry? correct
answers
Oxygenated
What kind of cells make up the blood vessel wall? correct
answers
Endothelial cells
Where are the endothelial cells that make up BV walls derived
from? correct answers
The embryonic layer called the mesoderm
What are the 3 layers of all BVs (except capillaries) from inner to
outer correct answers
1. tunica interna or intima
2. tunica media
3. tunica externa
What is vasoconstriction? And what layer of the blood vessel
controls it? correct answers
Narrowing of the lumen of the blood vessel, restricting blood
flow. Tunica media
