11. The flexor retinaculum is continuous with the palmar carpal ligament, and deeper with the palmar aponeurosis. 12. Other groups of moth have a frenulum on the hindwing that hooks under a retinaculum on the forewing. 13. Cherry eye results from a defect in the retinaculum which is responsible for anchoring the gland to the periorbita. 14. This type of coupling is a variation of frenate type but where the frenulum and retinaculum are completely lost. 15. In the butterflies and in the Bombycoidea there is no arrangement of frenulum and retinaculum to couple the wings. 16. The "'retinaculum "'is a loop on the underside of the forewing of some moths. 17. The fruit is a two-celled funiculus called a jaculator or a retinaculum ) that ejects them from the capsule. 18. Four long tendons come off this muscle near the wrist and travel through the carpal tunnel formed by the flexor retinaculum . 19. The fibers end in a flattened tendon, which passes beneath the flexor retinaculum of the hand through the carpal tunnel. 20. Superficial to the carpal tunnel and the flexor retinaculum , the ulnar artery and ulnar nerve pass through the ulnar tunnel.
