Blood travels around the body through arteries, veins and capillaries - HSC - SSCE Biology - Question 7 - 2004 - Paper 1
Question 7
Blood travels around the body through arteries, veins and capillaries. Which of the following correctly describes the structure or function of each of these blood ve... show full transcript
Worked Solution & Example Answer:Blood travels around the body through arteries, veins and capillaries - HSC - SSCE Biology - Question 7 - 2004 - Paper 1
Step 1
Select the correct description for 'Artery'
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct description for 'Artery' is (B) Thick muscular walls. Arteries have thick walls composed of smooth muscle and elastic tissue to withstand high pressure as they carry oxygenated blood away from the heart.
Step 2
Select the correct description for 'Vein'
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct description for 'Vein' is (B) Thin walls with valves. Veins have thinner walls than arteries and contain valves to prevent the backflow of deoxygenated blood back toward the heart.
Step 3
Select the correct description for 'Capillary'
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct description for 'Capillary' is (B) Walls one cell thick. Capillaries are the smallest blood vessels and have walls that are only one cell thick, allowing for efficient exchange of gases, nutrients, and waste products.
