Explain how a stent works to treat Cardiovascular Disease? (3 marks)
A stent is a small cylinder wire mesh that is inserted into the blood vessel and expanded. This opens the middle of the blood vessel, allowing greater blood flow, meaning more oxygen is delivered to the organ the vessel supplies.
RT
Related Biology GCSE answers
All answers ▸What is diffusion, and what factors affect it?
There is an increasing worry about the rise of antibiotic-resistant bacteria, such as MRSA. How can doctors ensure that this threat is minimised? (2 marks)
What is a reflex and what do you mean by a reflex arc? (both "reflex" and "reflex arc" are on the CCEArevised GCSE Biology specification)
What is the best way to memorise things for an exam?