Elbow flexion primarily involves the hinge joint formed by the humerus (upper arm bone) and the ulna (one of the two bones in the forearm). The radius, the other forearm bone, also plays a role but to a lesser extent. The main muscles responsible for elbow flexion are the biceps brachii and brachialis.
*Flexion is term used to describe the movement around or at joints in arm or leg, e.g pulling action reduce the angle in elbow joint, *Opposite of this movement is extension e.g pushing something with arms bend at elbow.
Shoulder joints have the greatest mobility among the options listed. They have a wider range of motion compared to hip, elbow, knee, and wrist joints, allowing for movements in multiple directions such as flexion, extension, abduction, adduction, and rotation.
The main joint involved in flexion of the knee is the hinge joint formed by the femur and tibia. Additionally, the patellofemoral joint between the patella and femur also plays a role in knee flexion by aiding in the smooth movement of the patella during flexion.
The elbow joints flex to decrease the angle between the forearm and upper arm, allowing for movements like bending the arm or bringing the hand closer to the shoulder. This action is controlled by the biceps muscle, which contracts during flexion.
at the elbow. "Flexion of the arm" just means to bend it.
The biceps brachii muscle is primarily responsible for elbow flexion. It crosses both the shoulder and elbow joints and is a strong supinator of the forearm.
biceps brachii,corahobrachialis,biseps
The elbow and knee joints are hinge joints, allowing movement in a single plane (flexion and extension). This design enables the joints to bend and straighten, facilitating basic movements like bending and straightening the arm or leg.
*Flexion is term used to describe the movement around or at joints in arm or leg, e.g pulling action reduce the angle in elbow joint, *Opposite of this movement is extension e.g pushing something with arms bend at elbow.
Shoulder joints have the greatest mobility among the options listed. They have a wider range of motion compared to hip, elbow, knee, and wrist joints, allowing for movements in multiple directions such as flexion, extension, abduction, adduction, and rotation.
They are hinge joints. The elbow has only one plane of motion (flexion & extension); however, the knee is considered a "modified hinge" because it has the flexion & extension as well as a rotational (pivot) component as well.
The main joint involved in flexion of the knee is the hinge joint formed by the femur and tibia. Additionally, the patellofemoral joint between the patella and femur also plays a role in knee flexion by aiding in the smooth movement of the patella during flexion.
The elbow joints flex to decrease the angle between the forearm and upper arm, allowing for movements like bending the arm or bringing the hand closer to the shoulder. This action is controlled by the biceps muscle, which contracts during flexion.
Elbow flexion, shoulder flexion and supination of the forearm.
at the elbow. "Flexion of the arm" just means to bend it.
The hinge joint is a type of synovial joint that allows movement in one plane only, like a hinge on a door. Examples of hinge joints include the elbow and the knee joints. These joints allow for flexion and extension movements.
Joints at the knee and elbow are hinge joints, designed to move in one primary direction (flexion and extension). The structure and shape of these joints limit rotational movement to protect them from injury. Rotation at these joints is mainly performed by the muscles and bones of the forearm and leg rather than at the knee or elbow joints themselves.