Sounds like costochondritis or Tietze's syndrome, which involves swelling of the cartilage in the lower rib cage. The lump is most likely due to inflammation and possibly the ribs slipping over one another, which can cause a clicking sensation. This problem can be brought on by some sort of trauma and often resolves on its own, or it can become a chronic problem that is related to other inflammatory conditions. Have your son checked by a rheumatologist, if possible, to rule out juvenile forms of Arthritis.
The rib cage is made up of a combination of cartilage and bone
Costochondritis is a common inflammatory condition of the place where the rib and rib cartilage meet. Other lung and related conditions, such as pleuritis, can also cause inflammation in the chest and rib cage area.
Cartilage is a connective tissue found between bones, joints, the ear, the nose, the rib cage, and at the inter-vertebral discs to act as shock absorbers.
While rib cage pain can be caused by a broken or fractured rib there could be several other causes as well including inflammation of the cartilage near the breastbone, pleurisy, muscle spasms, and osteoporosis. Only a doctor can tell you for sure what if causing your particular rib cage pain.
It allows your rib cage to move when the lungs inhale and exhale
yes they do! its at the very bottom of the sternum/rib cage. Although I believe its just cartilage.
cartilage :- it is a connective tissue which lies at joints between the bones or surrounding the bone it is mainly of two kinds hylaine cartilage and fibro cartilage the other areas where cartilage are found are :the rib cage, theear, the nose, the elbow, the knee, the ankle, the bronchial tubes and the intervertebral discs
Feeling a tugging sensation under your rib cage can be a sign of Lyme disease. It could also be something minor like a muscle spasm.
Could be a lot of things, may be Scheuerman or Scoliosis's, when your spine is bended and when you crack your ribs..................
The natural "springiness" of cartilage makes it very helpful as a lining and cover for some of our joints, and gives flexibility to our rib cage and sternum, ears and nose. It is our "built in shock absorber".
Not much - there is some tracheal cartilage and a few bones, but they are not arranged in a stable cage formation so they can be relatively easily broken.
It allows more flexible movement which helps us to breathe with ease.