According to WebMD, cracking noises from the knees are caused by uneven spots in the cartilage between bones, ligaments tightening as the joint moves or the joint lining moving over bones. In any of these cases, knee cracking is no cause for concern unless it is associated with pain and swelling, according to WebMD.Continue Reading
According to Live Science, the most common cause for creaking and cracking knees is tendons and ligaments popping into place as the knees is bent and extended. In addition to just bending, tendons and ligaments may make noises when simply walking as well, according to Everyday Mysteries.
If popping and cracking sounds are accompanied by pain and swelling, arthritis may be the cause, according to Live Science. Caused by the loss of smooth cartilage and the roughness of the joint surfaces rubbing together, arthritis causes the knees joints to become stiff and sore, according to Everyday Mysteries. Arthritis typically affects middle-aged people, according to WebMD.
Another possible cause for popping and cracking of knee joints is a meniscus tear, according to WebMD. The meniscus, which cushions the knee and acts as a shock absorber, is typically torn in a traumatic injury among younger people, but as the body ages it can be more easily torn during everyday activity, according to WebMD.Learn more about Bones
The human muscular, or musculoskeletal, system is comprised of the muscles, bones, tendons, ligaments, joints, cartilage and other tissues that both support the body and enable movement. The skeletal, or voluntary, muscles convert the body's chemical energy into forces that cause them to contract and move the bones and tissues connected to them. Smooth and cardiac muscles are referred to as involuntary muscles because, unlike the skeletal muscles, they perform their functions without a need for conscious control.Full Answer >
As one of many antioxidants, vitamin C reduces free radicals, the damaging chemicals responsible for aging, while it also has a primary role in building and repairing tissues, such as skin, blood vessels, tendons and ligaments, bones, teeth and cartilage, according to PubMed Health. Vitamin C is a water-soluble vitamin required for cell repair and growth throughout the body.Full Answer >
The cartilage covering the bones grow uneven when a person grows up, creating a situation where the bones cross each other when a person stands or walks thus causing the knees to make noise, as stated by WebMD. Most people experience grinding noise from their knees but this condition is not an indication of a health issue. Individuals experiencing this condition do not have to be much concerned especially when the condition is not accompanied by pain and swelling.Full Answer >
Structures in the spine include the vertebrae, intervertebral disks, spinal cord, ligaments and facet joints. The stacked vertebrae are aligned by ligaments and muscles and separated by intervertebral disks, according to the Mayfield Clinic. The spinal cord runs through a spinal canal created by the anatomy of the vertebrae.Full Answer >