Basic Structure Of A Blood Vessel

Question 0

The wall of a capillary has only a? Which allow?

Answer 0

Tunica interna which allows quick exchange of nutrients and gases

Question 1

The wall of a blood vessel consists of three layers from innermost to outermost

Answer 1

Tunica interna, tunica media( consisting of smooth muscle and elastic connective tissue), tunica externa.

Question 2

The average blood pressure in veins is

Answer 2

Lower than in arteries and capillaries