Arteries carry blood away from the heart whereas/or veins carry blood towards the heart.M2: Arteries have much thicker walls than veins (due to the thicker muscle and elastic layers) M3: Veins tend to have valves (this prevents backflow)
Arteries carry blood away from the heart whereas/or veins carry blood towards the heart.M2: Arteries have much thicker walls than veins (due to the thicker muscle and elastic layers) M3: Veins tend to have valves (this prevents backflow)
AA
Related Biology GCSE answers
All answers ▸Explain the causes and effects of increasing levels of carbon dioxide in the atmosphere
What is the order of Phylogenetic divisions?
Endocrine glands release hormones, suggest what would happen in the body of a person with hyperthyroidism.
Where is oestrogen produced?