Funiculus (Latin for "slender rope") is any cord-like structure in anatomy or biology, and may refer to:
Anatomy the spermatic cord formed by the vas deferens and surrounding tissue the umbilical cord attaching a fetus to the placenta during pregnancy
Neuroanatomy A funiculus or column is a small bundle of axons (nerve fibres), enclosed by the perineurium. In the central nervous system, a funiculus is one of the paired white matter regions of the spinal cord: the anterior funiculus, the lateral funiculus, and the posterior funiculus. In the fourth ventricle, the funiculus separans is a strip of ependyma. In the peripheral nervous system, a funiculus is a bundle of axons that may be bundled into a nerve fascicle
Biology in insect antennae, the funicle is the segment connecting the club with the base in flowering plants, the funiculus is the stalk that attaches an ovule to the placenta in mycology, the funicular cord is a sticky trailing thread that attaches the peridioles (the "eggs") to the peridium (the "nest") in some species of bird's nest fungi in malacology, a funicle is a cord-like spiral ridge within the umbilical area of the shell that runs into or partly fills the umbilicus.