artery structure- lqc 2

Question 1

thick smooth muscle layer

Answer 1

Muscle contracts to allow vasoconstriction to control blood flow and maintain high blood pressure

Question 1

outer collagen coat/ connective tissue

Answer 1

Strength to withstand increased/high blood pressure

Question 2

thick elastic fibre layer

Answer 2

Allow artery to stretch then recoil to push the blood forward and maintain high blood pressure

Question 3

smooth endothelium

Answer 3

Reduces resistance to blood flow

Question 4

narrow lumen

Answer 4

to maintain the high blood pressure