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

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

Medicine

• the umbilical cord attaching a fetus to the placenta during pregnancy

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

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