perineurium

American  

[per-uh-noor-ee-uhm, -nyoor-] / ˌpɛr əˈnʊər i əm, -ˈnyʊər- /

noun

Anatomy.

plural

perineuria

1. the sheath of connective tissue that encloses a bundle of nerve fibers.

---

perineurium British  

/ ˌpɛrɪˈnjʊərɪəm /

noun

1. the connective tissue forming a sheath around a single bundle of nerve fibres

---

Other Word Forms

• perineurial adjective
• perineurical adjective

Etymology

Origin of perineurium

From New Latin, dating back to 1835–45; see origin at peri-, neur-, -ium

Example Sentences

Figure 13.22 To what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium comparable?

From Textbooks • Jun. 19, 2013

Within the nerve, axons are further bundled into fascicles, which are each surrounded by their own layer of fibrous connective tissue called perineurium.

From Textbooks • Jun. 19, 2013

The nerve fibres there figured are bound together by endoneurium into small ropes, the nerves, encased in perineurium.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

The tumours, which vary greatly in size and number—as many as a thousand have been counted in one case—are enclosed in a capsule derived from the perineurium.

From Manual of Surgery Volume First: General Surgery. Sixth Edition. by Thomson, Alexis