For example, the average resting heart rate should remain between 60 to 100 beats per minute, according to the National Institutes of Health. Without negative feedback loops, there would be little regulation of crucial physiological functions.or example, the average resting heart rate should remain between 60 to 100 beats per minute, according to the National Institutes of Health. Without negative feedback loops, there would be little regulation of crucial physiological functions.
Medical Definition of flexion. 1  1: a bending movement around a joint in a limb (as the knee or elbow) that decreases the angle between the bones of the limb at the jointâcompare extension 2. 2  2: a forward raising of the arm or leg by a movement at the shoulder or hip joint.
DORSIFLEXION (Flexion): dorsal flexion; movement of the top of the ankle and foot toward the anterior tibia bone. PLANTAR FLEXION (extension): movement of the ankle and foot away from the tibia. EVERSION: turning the ankle and foot outward; abduction, away from the midline; weight is on the medial edge of the foot.