A connecting band; a frænum; as, the retinacula of the ileocæcal and ileocolic valves.
One of the annular ligaments which hold the tendons close to the bones at the larger joints, as at the wrist and ankle.
A small gland or process to which bodies are attached; as, the glandular retinacula to which the pollinia of orchids are attached, or the hooks which support the seeds in many acanthaceous plants.
a hook-like structure to which another structure is tethered; in Orchidaceae and Asclepiadaceae, the structure to which pollen masses are attached; in Acanthaceae, the persistent stalk of an ovule.
n. (NL. fr. L. that which holds or binds, band, fr. retinere, to hold back, retain) the hook-like funicle of a seed of a plant of the family Acanthaceae; a band or band-like structure that holds an organ in place. pl. retinacula.
Latin = a tether; hence, a thickened band of deep fascia which retains tendons or the patella.
A group of bristle-like scales or a sclerotized bar on the ventral surface of the forewing of most Lepidoptera which serves as a holder for the frenulum. The frenulum-retinaculum system is the wing interlocking mechanism found in the vast majority of the Lepidoptera.
a band of connective tissue, usually connected at both ends to bone, which keeps tendons or other structures in place
fibrous bands which bind into position muscles and tendons
The ventrally curved portion of the posterior margin of the forewing, onto which hook the hamuli of the hind wing to couple the forewing and hind wing together during flight.