We all have cartilage at the tips of our growing bones but as we get older and stop growing the cartilage has mainly disappeared. This growing process is generally completed by the time we are 25 years old. Babies and young children would have a larger amount of cartilage than a teenager. Adults have cartilage in their ears and nose.
Chondromalacia
It protects the articular cartliage.
it is a stout
catrilage covers the ends of bone and reduces the friction between them.
Rabbit ears are made of cartliage and blood vessels. The blood vessels help the rabbit keep cool in the summer.
It would mean the twelve year old has a cartilage piercing, nothing mystical about it, it's just a piercing.
No more than 2-3 weeks. But, if you hit it or snag it of course it might get red but the constant discoloration shouldn't last long.
Yes you can put retainers in just about any piercing, just be sure to do it after you have cleaned the piercings, it makes getting the retainers in a bit easier.
Cartilage can function as a connective tissue owing to its rigidity, it often holds tubes open.
This is important so more oxygen is able to fill the space when breathing.
arm arm arm arm
I believe cartilage makes up some parts of your bodies structures, such as your ears and nose, but it is also between joints, such as the knee joints to stop the constant friction from wearing the bone down.