Strong fibrous structure attached to rough surfaces on a bone

A) tendon
B) origin
C) insertion
D) diaphragm
E) orbicularis oris
F) orbicularis oculi
G) strain
H) sphincter
I) fibromyalgia
J) torticollis

Tendon

A flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.

Fibromyalgia

A chronic disorder characterized by widespread musculoskeletal pain, fatigue, and tender points.

Strain

To exert or stretch oneself to the utmost, or a variation within a species, particularly referencing bacteria or viruses; also refers to injury from overuse of a muscle.