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・ Anterior nuclei of thalamus
・ Anterior nucleus
・ Anterior olfactory nucleus
・ Anterior perforated substance
・ Anterior pituitary
・ Anterior proper fasciculus
・ Anterior ramus of spinal nerve
・ Anterior raphespinal tract
・ Anterior sacrococcygeal ligament
・ Anterior sacroiliac ligament
・ Anterior scrotal arteries
・ Anterior scrotal nerves
・ Anterior segment mesenchymal dysgenesis
・ Anterior segment of eyeball
・ Anterior shoulder
Anterior spinal artery
・ Anterior spinal artery syndrome
・ Anterior spinal veins
・ Anterior spinothalamic tract
・ Anterior sternoclavicular ligament
・ Anterior superior
・ Anterior superior alveolar arteries
・ Anterior superior alveolar nerve
・ Anterior superior iliac spine
・ Anterior surface
・ Anterior talocalcaneal ligament
・ Anterior talofibular ligament
・ Anterior teeth
・ Anterior temporal lobectomy
・ Anterior thoracic nerves


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Anterior spinal artery : ウィキペディア英語版
Anterior spinal artery

In human anatomy, the anterior spinal artery is the blood vessel that supplies the anterior portion of the spinal cord. It arises from branches of the vertebral arteries and courses along the anterior aspect of the spinal cord. It is reinforced by several contributory arteries, especially the artery of Adamkiewicz.
==Path==
The anterior spinal artery arises bilaterally as two small branches near the termination of the vertebral arteries. One of these vessels is usually larger than the other, but occasionally they are about equal in size. Descending in front of the medulla oblongata, they unite at the level of the foramen magnum. The single trunk descends in the front of the medulla spinalis, extending to the lowest part of the medulla spinalis. It is continued as a slender twig on the filum terminale.
On its course the artery takes several small branches (i.e. anterior segmental medullary arteries), which enter the vertebral canal through the intervertebral foramina. These branches are derived from the vertebral artery, the ascending cervical artery, a branch of the inferior thyroid artery in the neck, the intercostal arteries in the thorax, and from the lumbar artery, iliolumbar artery and lateral sacral arteries in the abdomen and pelvis.
The vessel is placed in the pia mater along the anterior median fissure. It supplies that membrane, and the substance of the medulla spinalis, also sending off branches at its lower part to be distributed to the cauda equina.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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