基層

Hemorrhage into the decidua basalis, formed retroplacental hematoma, lead to the separation of the placenta. 一)主要病理變化:底蛻膜出血，形成血腫，使胎盤自附著處剝離。

Transurethral Resection Syndrome After Bladder Perforation (Case Report) Ihab Dorotta, Ayman Basali, Michael Ritchey, Jerome F. O'Hara, Jr. 在膀胱穿孔后的經尿道切除綜合癥(病例報告)

Dissection is then carried posteriorally along the inferior border of the ethmoid to the lamina basalis.Through the lamina basalis lies the posterior ethmoid. 接著向后沿篩竇的下緣切除篩竇至基板，通過基板即進入后組篩竇。

Long T 1 and T 2 signal intensity was showed on MR in central pontine,focus presented under cortex cerebri and in nucleus basalis area in 4 cases. 3 cases enhanced around focus,2 cases enhanced in center and 4 cases no enhanced on postcontrast MRI. MRI均表現(xiàn)橋腦中央長T1 及長T2 信號 ,4例伴有皮層下白質及基底節(jié)病灶 ,3例病灶周邊強化 ,2例病灶中央顯著強化 ,4例不強化。

lamina basalis corporis ciliaris 睫狀體基底層

bronchi segmentalis basalis anterior [醫(yī)] 肺底前段支氣管