Which muscles are involved in flexion and extension of the leg?

What muscle causes flexion at the knee? - Quora

Hip Extensors - Physiopedia

The rectus femoris muscle attaches to the anterior iliac spine and the tibial tuberosity. How does its contraction move the thigh and the leg?

Level 3 (73) Exercise and Fitness Knowledge: The knee joint - Amac

Free body diagram of patient's leg during knee flexion and

Kinesiology of the Knee Extension (Leg Extension) Exercise

9.5 Types of Body Movements – Anatomy & Physiology

Standing Hip Extension: Tips and Recommended Variations

SOLVED: Lab Review Questions 1.) What is the definition of a prime mover muscle? 2.) What muscle is the prime mover for forearm flexion? 3.) List 5 criteria for naming skeletal muscles?