Types Of Blood Vessels

Question 1

Three main types of blood vessels (3)

Answer 1

Arteries

Veins

Capillaries

Question 2

Arteries carry blood away from heart and can _ to control blood flow (2)

Answer 2

Widen

Narrow

Question 3

_ carry blood back to heart

Answer 3

Veins

Question 4

Capillaries are where exchange of nutrients and waste occurs in _

Answer 4

Tissue

Question 5

Arteries surrounded by layer of _

Answer 5

Connective tissue

Question 6

Arteries have _ muscular, elastic wall

Answer 6

Thick

Question 7

Thick, elastic, muscular wall allows arteries to cope with _ as blood is pumped through them

Answer 7

Surges in blood pressure

Question 8

Veins have _ as blood returning to the heart is under lower pressure

Answer 8

Thinner walls

Question 9

Veins contain _

Answer 9

One way valves that prevent blood from moving backwards

Question 10

Capillaries have very thin walls that allow _ and other molecules to travel between blood and tissue (2)

Answer 10

Nutrients

Gases

Question 11

Some capillaries have _ that allow larger molecules through (2)

Answer 11

Gaps

Pores

Question 12

Blue whale’s heart is _ ft long, _ for wide

Answer 12

5

4

Question 13

Blue whale’s heart weight _ lbs

Answer 13

400