Because your knee and elbow have a hing joint so it moves like a door, but if it was a ball in socket joint like in your shoulder you would be able to rotate it like a 360
The patella (kneecap) protects the knee joint and helps with the proper functioning of the quadriceps muscles. The ulna protects the structures within the forearm, including nerves and blood vessels, as well as assisting in the movements of the elbow joint.
The knee contains a hinge joint, which allows movement in one plane, similar to a door hinge. The elbow contains a hinge joint as well, enabling flexion and extension movements.
Your knee is a HINGE JOINT because this joint allows you to move your knee forward and backward in a motion. If your knee was a ball and socket joint you would not be able to to move your leg backwards.
The hip, elbow, and knee are called synovial joints. These joints are characterized by a synovial capsule filled with synovial fluid that allows for smooth movement between the bones. They are highly mobile and permit various types of movements such as flexion, extension, abduction, and rotation.
When you straighten your arm or leg (as in a pushing movement), you EXTEND the arm or leg. When you bend your arm at the elbow or your leg at the knee, you FLEX the arm at the elbow and flex the leg at the knee.
The elbow can rotate on one plane, allowing flexion and extension movements. The knee can also rotate on one plane, enabling flexion and extension, as well as a slight degree of internal and external rotation.
The knee is the elbow is not
Knee by far. The knee has a lot of nerves that the elbow doesn't have
The things on your legs, and the things on you arms!
It can be used as a verb. Like, as in hitting with the knee. It's like the word "elbow". When you elbow someone, you hit them with your elbow.Noun- Look at my knee!Verb- Don't knee him!
knee elbow. you idiot.
Menisci is present in the knee as it is weight baring joint.
Knee and Elbow pads.
synovial
They are good if you fall down and you land on your elbow or knee it wont hurt as much and it helped me shoot better
There are a number of body parts that act as the fulcrums of levers. The most obvious ones are the elbow and knee joints.
Hinge joint.