perineurium
- noun
- /ˌpɛrɪˈnɜrɪəm/
- Specialized
- The perineurium acts as a protective layer, ensuring the nerve fibers within a bundle remain insulated from damage.
- perineurium and epineurium
Examples
-
On further examination, the overgrown epineurium, perineurium, and endoneurium are disorganized; however, the surrounding tissue demonstrates no involvement or inflammation.
Academic text (2015) -
Frozen-section analysis reveals that the carcinoma has infiltrated the perineurium around a nerve fiber (arrow) (H&E; original magnification × 100).
Academic text (2004) -
During the healing process, collagen synthesis due to fibroblastic activity increases in the endoneurium and the perineurium.
Academic text (2015) -
It is reasonable to suspect that malignant cells with this ability express cell-surface molecules that enable them to initially traverse the perineurium.
Academic text (2004) -
The tumor originates from fatty infiltration of the nerve bundle infiltrating the epineurium and perineurium (12, 14).
Academic text (2015) -
In her research, she focused on how the perineurium contributes to the overall structure and function of the nerve fascicle.
-
The doctor explained that the perineurium is crucial for maintaining the integrity of nerve conduction.
Surface Forms
Morphology
perineurium = neurium (opaque) = peri + neur + ium
The term is derived from Greek roots and is specialized medical terminology, not easily deduced by learners without specific knowledge.
Etymology
The word perineurium breaks into parts: peri- meaning 'around', as in perimeter, and neur- meaning 'nerve', as in neuron, with -ium for a tissue or membrane. So, perineurium is the tissue that wraps 'around' a bundle of nerve fibers.
