That cracking sound is the result of crepitus, which is the result of bone on bone movement or bone on ligament movement.
knee
Deep knee bends.
Quadriceps femoris
knee bends
Patellofemoral crepitations is noise and/or vibration that is felt when the person bends and straightens the knee. It is a symptom of several conditions, one of which is a weakness of the kneww muscles which require exercise in the form of walking or physical therapy.patell = platella or knee capfemor = femur or thigh-al = pertaining to (adjective ending)crepitation = to crackle, crack, creak
flexion of the knee.
knee bends
10
"It bends when you need it too. If we did not have that then you wouldn't be able to walk."what.
the quadriceps will contract and the hamstring will relax .the quariceps straightens the knee and the hamstring extends the hip and bends the knee to kcik the football the quadriceps will contract and the hamstring will relax .the quariceps straightens the knee and the hamstring extends the hip and bends the knee to kcik the football the quadriceps will contract and the hamstring will relax .the quariceps straightens the knee and the hamstring extends the hip and bends the knee to kcik the football
Extension. Extension increases an angle, as in straightening a joint. During extension, the knee or elbow are straightened.
Exercise: jogging, lunges, deep knee bends