When we compare the structures and functions of arteries and veins, we find that the walls of arteries are __________, the blood pressure inside arteries is __________, and the blood in arteries is moving __________ the heart.
A
thinner; lower; away from
B
thinner; lower; toward
C
thicker; lower; toward
D
thinner; higher; away from
E
thicker; higher; away from
0 댓글
검증된 단계별 안내
1
Understand the basic structure of arteries and veins: Arteries have thicker walls compared to veins because they need to withstand higher blood pressure as they carry blood away from the heart.
Consider the function of arteries: Arteries transport oxygenated blood from the heart to various parts of the body, which requires them to handle higher pressure.
Analyze the direction of blood flow: Blood in arteries moves away from the heart, delivering oxygen and nutrients to tissues.
Compare the blood pressure in arteries and veins: Arteries experience higher blood pressure due to the force exerted by the heart during blood circulation.
Conclude the comparison: Based on the structure, function, and blood flow direction, arteries have thicker walls, higher blood pressure, and carry blood away from the heart.