Semicircular Canal Structure during Postnatal Development in Cat and Guinea Pig
Semicircular Canal Structure during Postnatal Development in Cat and Guinea Pig
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猫和豚鼠产后发育过程中的半规管结构
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
C. Markham
中科院分区：
文献类型：
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作者：
I. Curthoys;R. Blanks;C. Markham
猫的前庭眼反射的增益在出生后的一段时间内继续增加。这种增加的原因目前尚不清楚，一种可能性是因为猫半规管的大小增加。本研究探讨了这种可能性，通过测量曲率半径（R）的个别半规管和半规管平面内的猫和豚鼠在出生后的成长迷路的角度关系。结果发现，在出生后的发展，在这两个物种的双曲大幅度移动，但无论是平面关系，也没有曲率半径的变化显着出生后的发展。半规管结构的稳定性，在出生后的头骨生长表明，出生后的发展变化，如增加增益前庭眼反射，在这些物种可能是由于受体细胞或神经成熟的因素。
The gain of the vestibulo-ocular reflex in the cat continues to increase for some time after birth. The reason for this increase is not presently known and one possibility is that it occurs because the cat semicircular canals increase in size. The present study examined this possibility by measuring the radii of curvature (R) of individual semicircular canals and the angular relationships of the semicircular canal planes within a labyrinth in cats and guinea pigs during postnatal growth. It was found that the labyrinths do move apart substantially during postnatal development in both species, but neither the planar relations nor the radii of curvature change significantly during postnatal development. The stability of semicircular canal structure during postnatal skull growth indicates that postnatal developmental changes in canal-related function, such as increased gain in the vestibulo-ocular reflex, in these species are probably due to receptor cell or neural maturational factors.