Yoga and stretching both increase our flexibility. However, while increased flexibility is a benefit of yoga, it's not the main purpose.
Beyond Stretching in Yoga: Groundbreaking New Techniques for Enhanced Joint Mobility and Flexibility - Lower Body - YogaUOnline
Yoga Anatomy Insights: The Iliopsoas & How it Affects Your Practice - DoYou
Yoga for the Trapezius… the neck and shoulders
Yoga Anatomy: Learn the Basics of Body Movement
Functional Yoga Anatomy: Rotator Cuff Exercises
Yoga Anatomy Articles
Yoga Anatomy: Standing Forward Bend Pose (Uttanasana)
Planes of Movement in Yoga – Ekhart Yoga
Total Body Yoga for Women DEEP STRETCH HIPS AND BACK
Yoga Anatomy: Butterfly Pose (Baddha Konasana)
Standing Wide-legged Forward Bend: What Are Our Intentions?
What Is Yoga Anatomy - Your Guide To Safe Yoga Practices