【摘要】 对3个月至足月胎儿的晶状体纤维、晶状体囊、悬韧带及晶状体周围的血管进行了扫描电镜下的观察。晶状体纤维的短面上有分布规律、大小一致的突起。这种分布型式在3个月至足月,在晶体皮质及晶体核均相同。晶体状悬韧带在胎儿第4个月时出现。悬韧带起自睫状体扁平部,睫状体突部及睫状体谷部。在晶状体囊上未见到孔洞。在8个月胎儿的晶状体赤道部表面及虹膜后的晶状体前表面,仍可看到含血的血管。更多还原

【Abstract】 Under the scanning electron microscope the structure of the lens fiber, lens capsule, zonule and the blood vessels around the lens of the 3rd month to near term fetuses were studied. The small but similar sized processes of the interdigitation are evenly protruded out from the short side surfaces of the lens fibers. The patterns of this fiber inter digitation are quite the same in the nucleus and the cortex of the same lens and in the lenses of the 3rd month and the term fetuses. In the 8th month fetuses, blood vessels containing red cells are seen on the surface of the equator of the lens and on the anterior lens surface behind the iris. The zonule appears in the 4th month of the fetal fife. The fibers of the ligaments originate from the surfaces of the orbiculus ciliaris, ciliary processes and the valleys between the processes. The pore and crevices of the lens capsule described by others are not seen in the present study.更多还原