A hinge joint, like the human elbow or knee, is a type of joint that only bends in one direction.

He injured his knee joint.

He is suffering from arthritis.

He started a special exercise to strengthen his articularis genus muscle.

She is suffering from temporomandibular joint disorder.

My grandmother has been suffering from arthritis for many years.

His articular cartilage has worn down due to age.

He clenched his fists in anger, his knuckles turning white.

If you plant this seed, beautiful flowers will bloom.

My mother has been suffering from temporomandibular joint dysfunction for many years.