Platelets
Biology: AQA GCSE Higher, topic 2.3.13
Platelets
Platelets are suspended in blood plasma.
Blood clotting
- Platelets are responsible for triggering blood clotting at the sites of wounds.
No nucleus
- Platelets are small cell fragments that do not have a nucleus.
Test yourself on Platelets
A person cuts their hand and blood begins to clot at the site of the wound. Which blood component triggered this clotting?
Platelets are suspended in the blood plasma, which flows all around the body. Why is this important for triggering blood clotting at a wound?
Platelets trigger blood clotting at the site of a wound. What would most likely happen if a person's blood contained far fewer platelets than normal?
Blood clotting is triggered by platelets at the site of a wound. A patient has a blood disorder that greatly reduces their platelet count. What is the most likely outcome if they cut themselves shaving?