Apex of Coccyx Anatomy in 3D | Rolandic Anatomy

The small, tapered inferior tip of the tailbone. It is a site of attachment for the external anal sphincter; fractures or dislocations of the apex can cause chronic, localized pain known as coccydynia.

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Related structures

Coccyx Base of Coccyx Apex of Dens Axis Apex of Sacrum Head of Fibula (Apex) Coccygeal Horn Abdominal Part of Pectoralis Major Muscle (Costal Cartilage of Seventh Rib Origin) Abductor Digiti Minimi of Foot (Proximal Phalanx of Fifth Finger of Foot Insertion)