Lab 11 The Circulatory System BIO202L
Student Name:
Access Code (located on the lid of your lab kit): AC-0KUZI4D
Pre-Lab Questions:
1. Describe the pathway of blood traveling through the closed system of the circulatory system starting
with the right atrium.
The blood travels from the right atrium-right ventricle-pulmonary artery-lungs-pulmonary veins-left
atrium-left ventricle-aorta-arteries-arterioles-capallaries-tissue cells-venules-veins-vena cava and finally
back to the right atrium
2. What are the main resistance vessels of the circulatory system? How are they controlled?
Arterioles are controlled by contraction and relaxation of smooth muscle.
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- tunica externa
E- valves
F- tunica media
G- tunica interna
, Lab 11 The Circulatory System BIO202L
Student Name:
Access Code (located on the lid of your lab kit): AC-0KUZI4D
Pre-Lab Questions:
1. Describe the pathway of blood traveling through the closed system of the circulatory system starting
with the right atrium.
The blood travels from the right atrium-right ventricle-pulmonary artery-lungs-pulmonary veins-left
atrium-left ventricle-aorta-arteries-arterioles-capallaries-tissue cells-venules-veins-vena cava and finally
back to the right atrium
2. What are the main resistance vessels of the circulatory system? How are they controlled?
Arterioles are controlled by contraction and relaxation of smooth muscle.
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- tunica externa
E- valves
F- tunica media
G- tunica interna
, Lab 11 The Circulatory System BIO202L
