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 ?
In the example shown (Figures 1 and 2), the entire medial meniscus is noted to be diminutive, with the posterior horn measuring 7 mm to 8 mm.
HORN CORES SMP-SMU PARAMETER MEASURED ET 5352 ET 5357 60004 AP diameter base of left posterior horn core 33.
A posteromedial portal is often needed to visualize the posterior horn insertion site.
These structures extend from the posterior horn of the lateral meniscus superomedially to the inner aspect of the medial femoral condyle (Figure 22).
The Wrisberg ligament type refers to a more normal morphology, except for a thick posterior horn and a lack of posterolateral meniscotibial attachment, and has a thick posterior tibial attachment.
These ligaments originate from the posterior horn of the lateral meniscus and insert onto the lateral aspect of the medial femoral condyle.
A BHT is a longitudinal tear of the medial or lateral knee meniscus that extends from the posterior horn toward the anterior horn.
A complex tear of the posterior horn of the lateral meniscus was noted to extend posteriorly to the popliteal fossa.
7) It is attached to the medial plateau via anterior and posterior horns as well as through the deep medial collateral, coronary, and meniscotibial ligaments.
The egg capsules of Atelomycterus are smooth with no striations, elongate with a greatly depressed and tapering posterior margin and the long posterior horns are very close together and touch each other in some instances, producing only short tendrils from the posterior end (Whitley 1939; Compagno & Stevens 1993a; Bor et al.

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