Subject :NSO Class : Class 7
The given photomicrograph
shows the transverse section of two blood vessels, X and Y connecting the heart and the lungs.
Identify the blood vessels and select the incorrect
statement regarding them.
A Blood vessel X connects right ventricle of heart
with lungs.
B Blood vessel Y connects lungs with left atrium of
heart.
C Blood in X contains higher percentage of oxygen
as compared to blood in Y.
D X is pulmonary artery that carries deoxygenated
blood from heart to lungs whereas Y is pulmonary
vein that carries oxygenated blood from lungs to
heart.