Lab 11 The Circulatory System BIO202L
Student Name: Olalekan Tiamiyu
Access Code (located on the lid of your lab kit): 4403-W002-8493
Pre-Lab Questions:
”1. Describe the pathway of blood traveling through the closed system of the circulatory system starting
with the right atrium.”
Blood starting in the right atrium goes into the right ventricle, which gets pumped towards to lungs to
become oxygenated. From the lungs, the blood gets pumped into the left atrium, then the left ventricle,
which then travels up through the aorta to various capillaries throughout the body. And Finally, the de-
oxygenated blood travels back through the superior and inferior vena cava to the right atrium for the
process to begin again
Alternatively, you may also draw a map of blood traveling through the closed circulatory system and
insert it below
”2. What are the main resistance vessels of the circulatory system? How are they controlled? ”
, Lab 11 The Circulatory System BIO202L
Arterioles are the main resistance vessels. They rely on smooth muscle to regulate blood flow through
vasoconstriction.
Experiment 1: Microscopic Examination of Blood Vessels
Post-Lab Questions
”1. Label each of the items in the following slide pictures based on your observations. ”
A- Tunica Adventitia
B- Tunica Intima
C- Tunica Media
D- Lipids
E- Tunica Intima
F- Tunica Adventitia
G- Tunica Media
Student Name: Olalekan Tiamiyu
Access Code (located on the lid of your lab kit): 4403-W002-8493
Pre-Lab Questions:
”1. Describe the pathway of blood traveling through the closed system of the circulatory system starting
with the right atrium.”
Blood starting in the right atrium goes into the right ventricle, which gets pumped towards to lungs to
become oxygenated. From the lungs, the blood gets pumped into the left atrium, then the left ventricle,
which then travels up through the aorta to various capillaries throughout the body. And Finally, the de-
oxygenated blood travels back through the superior and inferior vena cava to the right atrium for the
process to begin again
Alternatively, you may also draw a map of blood traveling through the closed circulatory system and
insert it below
”2. What are the main resistance vessels of the circulatory system? How are they controlled? ”
, Lab 11 The Circulatory System BIO202L
Arterioles are the main resistance vessels. They rely on smooth muscle to regulate blood flow through
vasoconstriction.
Experiment 1: Microscopic Examination of Blood Vessels
Post-Lab Questions
”1. Label each of the items in the following slide pictures based on your observations. ”
A- Tunica Adventitia
B- Tunica Intima
C- Tunica Media
D- Lipids
E- Tunica Intima
F- Tunica Adventitia
G- Tunica Media
