Sarah and Jane were playing basketball. They collided and fell. Sarah’s knee was lightly bruised. Jane’s elbow was scratched, causing a little blood to ooze out. After a few days, Jane observed pus formation around the scratch on her elbow, while Sarah’s knee was fine. The pus formation on Jane’s elbow is a result of . The receptors on the sensed the pain that Jane experienced.
Answers
The pus formation around the wound on Jane’s elbow is due to a possible microbial infection. It is associated with bacterial (most common) and fungal infections.
Explanation:
As part of natural immune response (innate immunity), white blood cells (WBCs) are transported to the site of injury in order to fight any microbes that possibly entered. Thus, pus contains dead and living microbes as well as WBCs, debris of tissues, etc.
When there is formation of pus, the wound is said to be septic.
The sensory receptors for pain called nociceptors present in the skin are responsible for the pain associated with the injury that Jane felt.
Note that the injury Sarah got was a bruise, which is not an open wound, so the chance of infection was low. Bruise or contusion is caused by breakage of capillaries under the skin and usually appear as a discoloration under that.
The following links will help you with some more information.
List the two types of immunity a human baby is born with
https://brainly.in/question/8102336
What is WBCs?which are WBCs function?
https://brainly.in/question/12167767