Question

Which joints are formed by the ulna and humerus at the elbow joint, finger and toe joints, and femur and tibia at the knee joint?

1) Shoulder and hip joints
2) Elbow and knee joints
3) Wrist and ankle joints
4) Neck and back joints

Answer 1

The elbow joint is formed by the ulna and humerus and joint that allows for forearm movement, while the knee joint, involving the femur and tibia, is crucial for leg movements.

Step-by-step explanation:

The joints formed by the ulna and humerus at the elbow joint, finger and toe joints, and femur and tibia at the knee joint are specifically known as the elbow and knee joints. The elbow joint is a uniaxial joint that consists of the humeroulnar joint, where the trochlea of the humerus articulates with the trochlear notch of the ulna. This joint is responsible for the flexion and extension of the forearm. The knee joint involves the femur and tibia and is one of the most complex joints in the human body, facilitating movement like walking, running, and squatting.