[의학약학]Mesencephalon(Midbrain)
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- 2007.06.19
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소개글
Mesencephalon(Midbrain) 에 대한 내용입니다.
목차
Mesencephalon이란 무엇인가?
The Mesencephalon 내부 구조와 기능
1) The superior colliculus
2) The inferior colliculus
3) The tegmentum
관련된 질병
1) Torticollis(Wryneck)
2) Parinaud Syndrome
본문내용
The Mesencephalon has two divisions- the tectum and the tegmentum. The tectum (roof) is the dorsal surface of the midbrain. In mammals, the tectum is composed of two pairs of bumps, the colliculi (little hills). The posterior pair called the inferior colliculi, have an auditory function; the anterior pair, called the superior colliculi, have a visual function. The tegementum is the division of the mesencephalon ventral to the tectum. In addition to the reticular formation and tracts of passage, the tegmentum contains three colorful structures- the periaqueductal gray, the substantia nigra, and the red nucleus. The periaqueductal gray is the gray matter situated around the cerebral aqueduct, the duct connecting the third and fourth ventricles. The periacqueductal gray plays role in mediating the analgesic(진통의) effects of opiate(마취,아편) drugs.
참고 자료
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