Double-bellied superior rectus muscle

@article{Nayak2019DoublebelliedSR,
  title={Double-bellied superior rectus muscle},
  author={Satheesha B. Nayak and Surekha D Shetty and Naveen Kumar and Ashwini P Aithal},
  journal={Surgical and Radiologic Anatomy},
  year={2019},
  volume={41},
  pages={713-715}
}
Congenital variations of extraocular muscles are rare. We report a double-bellied superior rectus muscle, observed in an adult male cadaver aged 70 years. The superior rectus muscle had two equal-sized bellies, which took separate origins from the common tendinous ring and united to form a common belly 1 cm before the insertion. Due to the duplication, the muscle extended laterally beyond the levator palpebrae superioris. Both its bellies were supplied by oculomotor nerve. To the best of our… 
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