anterior horn

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Noun1.anterior horn - one of two the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers
efferent, efferent nerve, motor nerve - a nerve that conveys impulses toward or to muscles or glands
nervus spinalis, spinal nerve - any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal)
References in periodicals archive ?
SPINAL muscular atrophy (SMA) is a disease of the anterior horn cells in the spinal cord.
Final fixation involves bony bridge fixation using an interference screw and anterior horn fixation with suture fixation to the anterior capsule along with the addition of a suture anchor near the anterior horn insertion site.
On October 11, he (Wahab) underwent an MRI investigation; he has significant osteochondral defects in the lateral tibial condyle (bone damage), advanced chondromalacia patella (damage to the cartilage under the knee cap) and suspicion of a tear to the anterior horn of the lateral meniscus (outer knee cartilage).
Males with pronotal anterior horn projecting over head, or with horn reduced to small truncate swelling; females with clypeal-frontal carina, and with pronotum more strongly convex in median anterior fifth .
Normal measurements of the posterior horn of the medial meniscus may vary, but the posterior horn is usually much larger than the anterior horn (the posterior horn usually measures 12 mm to 16 mm in the sagittal plane in an adult), and approximately twice the size of the anterior horn on sagittal magnetic resonance (MR) images.
We postulate that it could have induced spinal cord irritation, resulting in spontaneous, repetitive discharges of the anterior horn cell groups.
In terms of the lower motor neurons, ALS affects the anterior horn cells of the spinal cord, leading to limb weakness.
Spinal muscular atrophy (SMA) is a genetic, motor neuron disease characterized by wasting of the skeletal muscles caused by progressive degeneration of the anterior horn cells of the spinal cord.
College of Medicine, Philadephia, PA) has drawn on a long career in neurology to write this authoritative text describing the differential diagnosis to be observed in 16 separate conditions, including vascular disease, epilepsy, anterior horn cell disease, spinal cord disease, cranial nerves, and dementia.
Patients with flaccid paralysis have perivascular lymphocytic infiltration in the spinal cord, microglial nodules, and loss of anterior horn cells (9).
The virus can attack the anterior horn cells, causing acute flaccid paralysis resulting in a poliomyelitis-like syndrome.
5 cm posterior to the anterior border of the articular surface, just medial to the attachment of the anterior horn of the lateral meniscus.

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