posterior horn


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pos·te·ri·or horn

1. the occipital or posterior division of the lateral ventricle of the brain, extending backward into the occipital lobe;
See also: posterior column.
2. the posterior horn or gray column of the spinal cord as appearing in cross section. The posterior horn [TA] or dorsal horn [TAalt] contains spinal laminae I-VI [TA] of Rexed. The nuclei of the posterior horn are the marginal nucleus [TA] (nucleus marginalis [TA]), gelatinous substance [TA] (substantia gelatinosa [TA]), nucleus proprius [TA], secondary visceral grey substance [TA] (substantia visceralis secundaria [TA]), internal basilar nucleus [TA] (nucleus basilar internus [TA]), medial cervical nucleus [TA] (nucleus cervicalis medialis [TA]), posterior nucleus of lateral funiculus [TA] (nucleus posterior funiculi lateralis [TA]), and the lateral cervical nucleus.

posterior horn

Etymology: L, behind, cornu, horn
the horn-shaped projection of gray matter in the posterior region of the spinal cord. It relays information related to touch and pressure from muscles and regulates precise movement and unconscious proprioception. Also called dorsal column, dorsal horn, posterior column.

pos·te·ri·or horn

(pos-tēr'ē-ŏr hōrn)
The posterior or occipital division of the lateral ventricle of the brain, extending backward into the occipital lobe; the posterior gray column of the spinal cord as it appears in cross section.
Synonym(s): cornu posterius.

horn

(horn)
A cutaneous outgrowth composed chiefly of keratin; a hornlike projection. Synonym: cornu

horn of Ammon

Hippocampus.

anterior horn

The main column of neuron cell bodies and unmyelinated cell processes ( gray matter) running through the ventral quadrant of each half of the spinal cord. In stained cross-sections of spinal cord, the gray matter forms the rough shape of a butterfly; the anterior horns are the lower wings.
Synonym: ventral horn See: spinal cord

cicatricial horn

A cutaneous horn originating in scar tissue.

cutaneous horn

A hard, horny outgrowth from the skin. It is slow-growing, benign, and may be small or large, 10 to 12 cm, in diameter.

dorsal horn

The main column of neuron cell bodies and unmyelinated cell processes (ie, gray matter) running through the dorsal quadrant of each half of the spinal cord. In stained cross-sections of spinal cord, the gray matter forms the rough shape of a butterfly; the dorsal horns are the upper wings.
Synonym: posterior horn See: spinal cord

intermediolateral horn

Lateral horn.

lateral horn

A column of neuron cell bodies and unmyelinated cell processes (ie, gray matter) running through the lateral quadrant of spinal cord segments C8–L2 In stained cross-sections of spinal cord, the lateral horns form a small bulge of gray matter between the dorsal and ventral horns. The lateral horns contain the preganglionic cell bodies of the sympathetic nervous system.
Synonym: intermediolateral horn; intermediolateral cell column; zona intermedia See: spinal cord

posterior horn

Dorsal horn.

sebaceous horn

A hard protrusion from a sebaceous gland.

uterine horn

Either of the two upper corners of the uterus into which the uterine tubes enter.

ventral horn

Anterior horn.

warty horn

A hard outgrowth from a wart.
References in periodicals archive ?
This is in contrary to the study by Singh et al, [9] where the most common site of lateral meniscal tear was posterior horn of lateral meniscus.
The region of greatest meniscal degeneration was the posterior horn.
In patients with ACL tear subtle peripheral tears may be present in both lateral and medial menisci which should be carefully looked for on imaging, especially posterior horn of medial meniscus.
Kale, et al studied fetal menisci and reported that the mean width of the midpoint of the anterior horn, posterior horn and the lateral side of the lateral menisci were recorded as 0.
In the Wrisberg variant, the morphology of the meniscus may be normal, but the posterior fascicles and meniscotibial ligament are absent and a high signal fluid cleft interposed between the posterior horn and the capsule may simulate a peripheral tear (Figure 6).
HORN CORES SMP-SMU PARAMETER MEASURED ET 5352 ET 5357 60004 AP diameter base of left posterior horn core 33.
The menisci, which had thin anterior and posterior horns and a thin body, were defined as the crescentic (semilunar) type.
Deep dissection in the region posterior to the superficial MCL is useful in exposing the posteromedial corner of the knee as well as the posterior horn of the medial meniscus (Table 5).
Associated ACL injuries with ruptures of medial meniscus or tears of posterior horn of lateral meniscus are directly connected to obesity.
In fact, the posterior horn of the lateral meniscus is separated entirely from the posterolateral aspect of the joint capsule by the tendon of the popliteus muscle as it descends from the lateral epicondyle of the femur.
The meniscofemoral ligaments are intimately associated with the PCL as they pass from the posterior horn of the lateral meniscus to the medial femoral condyle.
No difference between the genders and the correlation with BMI, which was seen in the posterior horn, was found in the body and the anterior horn of the meniscus.

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